Bug 103751
| Summary: | M-Audio Fast Track Ultra usb audio device will not operate full-duplex | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | grozzy |
| Component: | Sound(ALSA) | Assignee: | Jaroslav Kysela (perex) |
| Status: | NEW --- | ||
| Severity: | normal | CC: | alexander, francois.jacques, matare, superquad.vortex2 |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 4.1.5-1-ARCH | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
The output of an ALSA information script was uploaded here while troubleshooting a week ago: http://www.alsa-project.org/db/?f=f1436001041a68fada9f19d94fd5d4faceeb51f7 Whoops. The kernel versions for AVLinux and KXStudio are 3.13 and 3.12. I think the M-Audio Fast Track Ultra only works full-duplex with Jack in those distros, not directly with ALSA. I have the exact same problem with an M-Audio FastTrack C400 on a more recent kernel: 4.3.5-300.fc23.x86_64 https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/log/sound/usb?qt=grep&q=fast+track+ultra seem only support 8 channel (In reply to Victor Mataré from comment #3) > I have the exact same problem with an M-Audio FastTrack C400 on a more > recent kernel: 4.3.5-300.fc23.x86_64 https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/usb?id=76f74bca73ec8210c6b04559445982907ad1b0a6 Seem only support 6 channel playback and 4 channel capture Victor: I think a separate bug that refers to this one would be useful for people who might have the same sound interface as you. Makes tracking easier, too! My two cents: A bit of googling led me to find that Clemens Ladisch thinks the FTU is indeed duplex capable. At least it appears it was at some point, perhaps before the aforementioned commit. https://sourceforge.net/p/alsa/mailman/message/30468203/ So it seems there's really a bug in the driver and it has been acknowledged by another well established contributor of the project. Now what we'd need, I think, is some spelunking to other versions to check whether it was indeed functional *prior* to the new endpoint streaming model commit. At least that would confirm there was a regression between both codebases, at least for the FTU. Perhaps it needs some quirk adjustment or else? I'm willing to try patches and experiment on my workstation. I'll try (don't hold your breath... may take a few days) to give it a shot with a Live CD with an older kernel. I think the status can be changed to OPEN. Rectification: perhaps the bug isn't NOT in the driver but with the card itself. I typed this too fast. This is a common problem with all USB audio devices that use implicit feedback for synchronization. If you remove your device from set_sync_ep_implicit_fb_quirk() (sound/usb/pcm.c), it will work in duplex mode. But there will be pops and clicks during playback. |
[1.] One line summary of the problem: M-Audio Fast Track Ultra usb audio device will not operate full-duplex. [2.] Full description of the problem/report: I originally noticed this problem while attempting to record audio in Ardour 4.2. Further testing with the alsa utilities points to a driver problem. Playback works as expected. Recording works as expected. Playback and recording simultaneously does not work as expected, as described below. To test simultaneous playback and record: 'speaker-test -c2 -Dplughw:Ultra' 'arecord -fdat -Dplughw:Ultra /dev/null' 'dmesg' When playback is active, starting recording will cause playback audio to drop with these errors: 'arecord -fdat -Dplughw:Ultra /dev/null' Recording WAVE '/dev/null' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo arecord: set_params:1297: Unable to install hw params: ACCESS: RW_INTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: 32 CHANNELS: 2 RATE: 48000 PERIOD_TIME: 125000 PERIOD_SIZE: 6000 PERIOD_BYTES: 24000 PERIODS: 4 BUFFER_TIME: 500000 BUFFER_SIZE: 24000 BUFFER_BYTES: 96000 TICK_TIME: 0 'dmesg' usb 4-1.1: Unable to change format on ep #81: already in use When recording is active, starting playback will cause playback audio to drop with these errors: 'speaker-test -c2 -Dplughw:Ultra' speaker-test 1.0.29 Playback device is plughw:Ultra Stream parameters are 48000Hz, S16_LE, 2 channels Using 16 octaves of pink noise Rate set to 48000Hz (requested 48000Hz) Buffer size range from 12 to 43690 Period size range from 6 to 21845 Using max buffer size 43688 Periods = 4 Unable to set hw params for playback: Device or resource busy Setting of hwparams failed: Device or resource busy 'dmesg' usb 4-1.1: Unable to change format on ep #81: already in use [3.] Keywords (i.e., modules, networking, kernel): m-audio fast track ultra, usb audio, endpoint [4.] Kernel version (from /proc/version): Linux version 4.1.5-1-ARCH (builduser@tobias) (gcc version 5.2.0 (GCC) ) #1 SMP PREEMPT Tue Aug 11 15:41:14 CEST 2015 [5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt) [6.] A small shell script or example program which triggers the problem (if possible): See [2] Full description. [7.] Environment: [7.1.] Software (add the output of the ver_linux script here) [7.2.] Processor information (from /proc/cpuinfo): processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz stepping : 7 microcode : 0x17 cpu MHz : 825.601 cache size : 6144 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt bugs : bogomips : 4391.16 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz stepping : 7 microcode : 0x17 cpu MHz : 819.156 cache size : 6144 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt bugs : bogomips : 4391.16 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz stepping : 7 microcode : 0x17 cpu MHz : 885.757 cache size : 6144 KB physical id : 0 siblings : 8 core id : 1 cpu cores : 4 apicid : 2 initial apicid : 2 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt bugs : bogomips : 4391.16 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz stepping : 7 microcode : 0x17 cpu MHz : 828.781 cache size : 6144 KB physical id : 0 siblings : 8 core id : 1 cpu cores : 4 apicid : 3 initial apicid : 3 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt bugs : bogomips : 4391.16 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 4 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz stepping : 7 microcode : 0x17 cpu MHz : 799.992 cache size : 6144 KB physical id : 0 siblings : 8 core id : 2 cpu cores : 4 apicid : 4 initial apicid : 4 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt bugs : bogomips : 4391.16 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 5 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz stepping : 7 microcode : 0x17 cpu MHz : 799.992 cache size : 6144 KB physical id : 0 siblings : 8 core id : 2 cpu cores : 4 apicid : 5 initial apicid : 5 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt bugs : bogomips : 4391.16 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 6 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz stepping : 7 microcode : 0x17 cpu MHz : 961.125 cache size : 6144 KB physical id : 0 siblings : 8 core id : 3 cpu cores : 4 apicid : 6 initial apicid : 6 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt bugs : bogomips : 4391.16 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz stepping : 7 microcode : 0x17 cpu MHz : 898.992 cache size : 6144 KB physical id : 0 siblings : 8 core id : 3 cpu cores : 4 apicid : 7 initial apicid : 7 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt bugs : bogomips : 4391.16 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: [7.3.] Module information (from /proc/modules): snd_usb_audio 151552 0 - Live 0xffffffffa0699000 snd_usbmidi_lib 28672 1 snd_usb_audio, Live 0xffffffffa0450000 snd_rawmidi 28672 1 snd_usbmidi_lib, Live 0xffffffffa0529000 snd_seq_device 16384 1 snd_rawmidi, Live 0xffffffffa03a3000 nls_utf8 16384 1 - Live 0xffffffffa0348000 isofs 40960 1 - Live 0xffffffffa051e000 fuse 90112 3 - Live 0xffffffffa04fb000 joydev 20480 0 - Live 0xffffffffa039d000 mousedev 20480 0 - Live 0xffffffffa030c000 arc4 16384 2 - Live 0xffffffffa0375000 intel_rapl 20480 0 - Live 0xffffffffa037a000 iosf_mbi 16384 1 intel_rapl, Live 0xffffffffa05c9000 x86_pkg_temp_thermal 16384 0 - Live 0xffffffffa0537000 intel_powerclamp 16384 0 - Live 0xffffffffa0370000 snd_hda_codec_hdmi 53248 1 - Live 0xffffffffa04ed000 coretemp 16384 0 - Live 0xffffffffa0313000 iwldvm 188416 0 - Live 0xffffffffa0a09000 mac80211 667648 1 iwldvm, Live 0xffffffffa08c9000 snd_hda_codec_realtek 77824 1 - Live 0xffffffffa043c000 iTCO_wdt 16384 0 - Live 0xffffffffa02c3000 snd_hda_codec_generic 69632 1 snd_hda_codec_realtek, Live 0xffffffffa042a000 iTCO_vendor_support 16384 1 iTCO_wdt, Live 0xffffffffa027f000 i915 1044480 3 - Live 0xffffffffa0706000 kvm 442368 0 - Live 0xffffffffa062c000 snd_hda_intel 28672 3 - Live 0xffffffffa0516000 uvcvideo 90112 0 - Live 0xffffffffa05ce000 snd_hda_controller 28672 1 snd_hda_intel, Live 0xffffffffa05c1000 crct10dif_pclmul 16384 0 - Live 0xffffffffa02a8000 crc32_pclmul 16384 0 - Live 0xffffffffa029d000 iwlwifi 176128 1 iwldvm, Live 0xffffffffa05e7000 crc32c_intel 24576 0 - Live 0xffffffffa05b1000 snd_hda_codec 98304 5 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller, Live 0xffffffffa0592000 ghash_clmulni_intel 16384 0 - Live 0xffffffffa0462000 videobuf2_vmalloc 16384 1 uvcvideo, Live 0xffffffffa046b000 aesni_intel 172032 0 - Live 0xffffffffa0567000 videobuf2_memops 16384 1 videobuf2_vmalloc, Live 0xffffffffa03b7000 videobuf2_core 40960 1 uvcvideo, Live 0xffffffffa03d8000 drm_kms_helper 106496 1 i915, Live 0xffffffffa053e000 snd_hda_core 28672 5 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_controller,snd_hda_codec, Live 0xffffffffa03c2000 v4l2_common 16384 1 videobuf2_core, Live 0xffffffffa045d000 aes_x86_64 20480 1 aesni_intel, Live 0xffffffffa03cf000 lrw 16384 1 aesni_intel, Live 0xffffffffa0458000 cfg80211 483328 3 iwldvm,mac80211,iwlwifi, Live 0xffffffffa0471000 snd_hwdep 16384 2 snd_usb_audio,snd_hda_codec, Live 0xffffffffa03a9000 drm 286720 5 i915,drm_kms_helper, Live 0xffffffffa03e3000 gf128mul 16384 1 lrw, Live 0xffffffffa03bd000 snd_pcm 90112 5 snd_usb_audio,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller,snd_hda_codec, Live 0xffffffffa0386000 jmb38x_ms 20480 0 - Live 0xffffffffa0380000 videodev 139264 3 uvcvideo,videobuf2_core,v4l2_common, Live 0xffffffffa034d000 snd_timer 28672 1 snd_pcm, Live 0xffffffffa0340000 memstick 16384 1 jmb38x_ms, Live 0xffffffffa0298000 snd 69632 18 snd_usb_audio,snd_usbmidi_lib,snd_rawmidi,snd_seq_device,snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer, Live 0xffffffffa02fa000 intel_gtt 20480 1 i915, Live 0xffffffffa02f4000 i2c_i801 20480 0 - Live 0xffffffffa02ee000 glue_helper 16384 1 aesni_intel, Live 0xffffffffa0293000 mei_me 24576 0 - Live 0xffffffffa02e7000 media 20480 2 uvcvideo,videodev, Live 0xffffffffa02a2000 ablk_helper 16384 1 aesni_intel, Live 0xffffffffa0153000 evdev 24576 14 - Live 0xffffffffa024b000 i2c_algo_bit 16384 1 i915, Live 0xffffffffa0158000 mei 77824 1 mei_me, Live 0xffffffffa032c000 mac_hid 16384 0 - Live 0xffffffffa025a000 soundcore 16384 1 snd, Live 0xffffffffa025f000 i2c_core 49152 7 i915,drm_kms_helper,v4l2_common,drm,videodev,i2c_i801,i2c_algo_bit, Live 0xffffffffa031f000 lpc_ich 24576 0 - Live 0xffffffffa0318000 cryptd 20480 3 ghash_clmulni_intel,aesni_intel,ablk_helper, Live 0xffffffffa026a000 psmouse 122880 0 - Live 0xffffffffa02c8000 shpchp 36864 0 - Live 0xffffffffa0275000 serio_raw 16384 0 - Live 0xffffffffa0252000 ideapad_laptop 24576 0 - Live 0xffffffffa01e5000 pcspkr 16384 0 - Live 0xffffffffa0246000 sparse_keymap 16384 1 ideapad_laptop, Live 0xffffffffa0144000 rfkill 24576 4 cfg80211,ideapad_laptop, Live 0xffffffffa0285000 fan 16384 0 - Live 0xffffffffa0270000 wmi 20480 0 - Live 0xffffffffa0264000 thermal 20480 0 - Live 0xffffffffa02bd000 battery 20480 0 - Live 0xffffffffa02b3000 ac 16384 0 - Live 0xffffffffa02ae000 video 24576 1 i915, Live 0xffffffffa028c000 processor 28672 0 - Live 0xffffffffa01dd000 button 16384 1 i915, Live 0xffffffffa0135000 sch_fq_codel 20480 5 - Live 0xffffffffa00a9000 ip_tables 28672 0 - Live 0xffffffffa00b6000 x_tables 28672 1 ip_tables, Live 0xffffffffa0044000 ext4 516096 1 - Live 0xffffffffa015e000 crc16 16384 1 ext4, Live 0xffffffffa002b000 mbcache 20480 1 ext4, Live 0xffffffffa001a000 jbd2 90112 1 ext4, Live 0xffffffffa011e000 sr_mod 24576 1 - Live 0xffffffffa00af000 cdrom 53248 1 sr_mod, Live 0xffffffffa007a000 sd_mod 36864 2 - Live 0xffffffffa0010000 ahci 36864 2 - Live 0xffffffffa0149000 libahci 28672 1 ahci, Live 0xffffffffa013c000 xhci_pci 16384 0 - Live 0xffffffffa0032000 ehci_pci 16384 0 - Live 0xffffffffa003f000 libata 204800 2 ahci,libahci, Live 0xffffffffa0213000 xhci_hcd 155648 1 xhci_pci, Live 0xffffffffa01ec000 ehci_hcd 73728 1 ehci_pci, Live 0xffffffffa004c000 atkbd 24576 0 - Live 0xffffffffa0038000 sdhci_pci 24576 0 - Live 0xffffffffa0020000 libps2 16384 2 psmouse,atkbd, Live 0xffffffffa00be000 sdhci 40960 1 sdhci_pci, Live 0xffffffffa006f000 led_class 16384 2 iwldvm,sdhci, Live 0xffffffffa006a000 scsi_mod 151552 3 sr_mod,sd_mod,libata, Live 0xffffffffa00f8000 usbcore 200704 7 snd_usb_audio,snd_usbmidi_lib,uvcvideo,xhci_pci,ehci_pci,xhci_hcd,ehci_hcd, Live 0xffffffffa00c6000 mmc_core 114688 2 sdhci_pci,sdhci, Live 0xffffffffa008c000 usb_common 16384 1 usbcore, Live 0xffffffffa0062000 i8042 20480 2 ideapad_laptop,libps2, Live 0xffffffffa000a000 serio 20480 6 psmouse,serio_raw,atkbd,i8042, Live 0xffffffffa0000000 [7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem): /pro/ioports 0000-0cf7 : PCI Bus 0000:00 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-0060 : keyboard 0062-0062 : PNP0C09:00 0062-0062 : EC data 0064-0064 : keyboard 0066-0066 : PNP0C09:00 0066-0066 : EC cmd 0070-0077 : rtc0 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 00f0-00f0 : PNP0C04:00 03c0-03df : vesafb 0400-0403 : ACPI PM1a_EVT_BLK 0404-0405 : ACPI PM1a_CNT_BLK 0408-040b : ACPI PM_TMR 0410-0415 : ACPI CPU throttle 0420-042f : ACPI GPE0_BLK 0430-0433 : iTCO_wdt 0430-0433 : iTCO_wdt 0450-0450 : ACPI PM2_CNT_BLK 0454-0457 : pnp 00:02 0458-047f : pnp 00:00 0460-047f : iTCO_wdt 0460-047f : iTCO_wdt 0500-057f : pnp 00:00 0680-069f : pnp 00:00 0cf8-0cff : PCI conf1 0d00-ffff : PCI Bus 0000:00 1000-100f : pnp 00:00 1010-1013 : pnp 00:00 164e-164f : pnp 00:00 2000-2fff : PCI Bus 0000:01 3000-303f : 0000:00:02.0 3040-305f : 0000:00:1f.3 3060-307f : 0000:00:1f.2 3060-307f : ahci 3080-3087 : 0000:00:1f.2 3080-3087 : ahci 3088-308f : 0000:00:1f.2 3088-308f : ahci 3098-309b : 0000:00:1f.2 3098-309b : ahci 309c-309f : 0000:00:1f.2 309c-309f : ahci ffff-ffff : pnp 00:00 /proc/iomem 00000000-00000fff : reserved 00001000-0009d7ff : System RAM 0009d800-0009ffff : reserved 000a0000-000bffff : PCI Bus 0000:00 000c0000-000cf1ff : Video ROM 000e0000-000fffff : reserved 000f0000-000fffff : System ROM 00100000-1fffffff : System RAM 01000000-01590f1e : Kernel code 01590f1f-018df5bf : Kernel data 01a0e000-01b2dfff : Kernel bss 20000000-201fffff : reserved 20000000-201fffff : pnp 00:06 20200000-3fffffff : System RAM 40000000-401fffff : reserved 40000000-401fffff : pnp 00:06 40200000-bce3efff : System RAM bce3f000-bcebefff : reserved bcebf000-bcfbefff : ACPI Non-volatile Storage bcfbf000-bcffefff : ACPI Tables bcfff000-bcffffff : System RAM bd000000-bf9fffff : reserved bda00000-bf9fffff : Graphics Stolen Memory bfa00000-feafffff : PCI Bus 0000:00 bfa00000-bfa00fff : pnp 00:05 c0000000-cfffffff : 0000:00:02.0 d0000000-d03fffff : 0000:00:02.0 d0400000-d13fffff : PCI Bus 0000:01 d1400000-d14fffff : PCI Bus 0000:0a d1400000-d14000ff : 0000:0a:00.4 d1401000-d14010ff : 0000:0a:00.3 d1401000-d14010ff : jmb38x_ms d1402000-d14020ff : 0000:0a:00.2 d1403000-d14030ff : 0000:0a:00.0 d1403000-d14030ff : mmc0 d1500000-d15fffff : PCI Bus 0000:09 d1500000-d1501fff : 0000:09:00.0 d1500000-d1501fff : xhci-hcd d1600000-d16fffff : PCI Bus 0000:08 d1600000-d1601fff : 0000:08:00.0 d1600000-d1601fff : iwlwifi d1700000-d26fffff : PCI Bus 0000:01 d2700000-d2703fff : 0000:00:1b.0 d2700000-d2703fff : ICH HD audio d2704000-d270400f : 0000:00:16.0 d2704000-d270400f : mei_me d2706000-d27060ff : 0000:00:1f.3 d2708000-d27087ff : 0000:00:1f.2 d2708000-d27087ff : ahci d2709000-d27093ff : 0000:00:1d.0 d2709000-d27093ff : ehci_hcd d270a000-d270a3ff : 0000:00:1a.0 d270a000-d270a3ff : ehci_hcd f8000000-fbffffff : PCI MMCONFIG 0000 [bus 00-3f] f8000000-fbffffff : reserved f8000000-fbffffff : pnp 00:05 feb00000-feb03fff : reserved fec00000-fec00fff : reserved fec00000-fec003ff : IOAPIC 0 fed00000-fed003ff : HPET 0 fed00000-fed003ff : PNP0103:00 fed10000-fed19fff : reserved fed10000-fed17fff : pnp 00:05 fed18000-fed18fff : pnp 00:05 fed19000-fed19fff : pnp 00:05 fed1c000-fed1ffff : reserved fed1c000-fed1ffff : pnp 00:05 fed1f410-fed1f414 : iTCO_wdt fed1f410-fed1f414 : iTCO_wdt fed20000-fed3ffff : pnp 00:05 fed90000-fed93fff : pnp 00:05 fee00000-fee00fff : Local APIC fee00000-fee00fff : reserved ff000000-ffffffff : INT0800:00 ffd80000-ffffffff : reserved 100000000-23fdfffff : System RAM 23fe00000-23fffffff : RAM buffer [7.5.] PCI information ('lspci -vvv' as root) 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) Subsystem: Lenovo Device 3975 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 24 Bus: primary=00, secondary=01, subordinate=06, sec-latency=0 I/O behind bridge: 00002000-00002fff Memory behind bridge: d1700000-d26fffff Prefetchable memory behind bridge: 00000000d0400000-00000000d13fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport Kernel modules: shpchp 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device 3981 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 37 Region 0: Memory at d0000000 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at c0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 3000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915 Kernel modules: i915 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) Subsystem: Lenovo Device 3975 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 34 Region 0: Memory at d2704000 (64-bit, non-prefetchable) [size=16] Capabilities: <access denied> Kernel driver in use: mei_me Kernel modules: mei_me 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI]) Subsystem: Lenovo Device 3975 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 16 Region 0: Memory at d270a000 (32-bit, non-prefetchable) [size=1K] Capabilities: <access denied> Kernel driver in use: ehci-pci Kernel modules: ehci_pci 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05) Subsystem: Lenovo Device 3975 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 36 Region 0: Memory at d2700000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 17 Bus: primary=00, secondary=07, subordinate=07, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin B routed to IRQ 16 Bus: primary=00, secondary=08, subordinate=08, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: d1600000-d16fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin D routed to IRQ 19 Bus: primary=00, secondary=09, subordinate=09, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: d1500000-d15fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 17 Bus: primary=00, secondary=0a, subordinate=0a, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: d1400000-d14fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport Kernel modules: shpchp 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI]) Subsystem: Lenovo Device 3975 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 23 Region 0: Memory at d2709000 (32-bit, non-prefetchable) [size=1K] Capabilities: <access denied> Kernel driver in use: ehci-pci Kernel modules: ehci_pci 00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05) Subsystem: Lenovo Device 3975 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> Kernel driver in use: lpc_ich Kernel modules: lpc_ich 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0]) Subsystem: Lenovo Device 3975 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 33 Region 0: I/O ports at 3088 [size=8] Region 1: I/O ports at 309c [size=4] Region 2: I/O ports at 3080 [size=8] Region 3: I/O ports at 3098 [size=4] Region 4: I/O ports at 3060 [size=32] Region 5: Memory at d2708000 (32-bit, non-prefetchable) [size=2K] Capabilities: <access denied> Kernel driver in use: ahci Kernel modules: ahci 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05) Subsystem: Lenovo Device 3975 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin C routed to IRQ 19 Region 0: Memory at d2706000 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at 3040 [size=32] Kernel modules: i2c_i801 08:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000 [Condor Peak] Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 35 Region 0: Memory at d1600000 (64-bit, non-prefetchable) [size=8K] Capabilities: <access denied> Kernel driver in use: iwlwifi Kernel modules: iwlwifi 09:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) (prog-if 30 [XHCI]) Subsystem: Lenovo Device 3975 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 19 Region 0: Memory at d1500000 (64-bit, non-prefetchable) [size=8K] Capabilities: <access denied> Kernel driver in use: xhci_hcd Kernel modules: xhci_pci 0a:00.0 System peripheral: JMicron Technology Corp. SD/MMC Host Controller (rev 30) Subsystem: Lenovo Device 3976 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 16 Region 0: Memory at d1403000 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> Kernel driver in use: sdhci-pci Kernel modules: sdhci_pci 0a:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller (rev 30) (prog-if 01) Subsystem: Lenovo Device 3976 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 16 Region 0: Memory at d1402000 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> Kernel modules: sdhci_pci 0a:00.3 System peripheral: JMicron Technology Corp. MS Host Controller (rev 30) Subsystem: Lenovo Device 3976 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 16 Region 0: Memory at d1401000 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> Kernel driver in use: jmb38x_ms Kernel modules: jmb38x_ms 0a:00.4 System peripheral: JMicron Technology Corp. xD Host Controller (rev 30) Subsystem: Lenovo Device 3976 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 7 Region 0: Memory at d1400000 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> [7.6.] SCSI information (from /proc/scsi/scsi) Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: SAMSUNG MZMPA064 Rev: 8L1Q Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD7500BPVT-2 Rev: 1A03 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: HL-DT-ST Model: BDDVDRW CT30N Rev: WX02 Type: CD-ROM ANSI SCSI revision: 05 [7.7.] Other information that might be relevant to the problem (please look in /proc and include all information that you think to be relevant): It was brought to my attention that changes were made in kernel 3.5 that could be the source of the problem with the M-Audio Fast Track Ultra. Those changes are here: https://github.com/torvalds/linux/commit/8fdff6a3 [X.] Other notes, patches, fixes, workarounds: When running under current versions of AVLinux or KXStudio (both with kernel versions older than 3.5), playback and record do work simultaneously, although latency is high.