Latest working kernel version:none Earliest failing kernel version:all since 2.6.24 (earlier I doesn't tested) Distribution:Fedora 10 Hardware Environment: lspci: 00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.1 RAM memory: nVidia Corporation C51 Memory Controller 0 (rev a2) 00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2) 00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2) 00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2) 00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2) 00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2) 00:02.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:03.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:04.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2) 00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3) 00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3) 00:0a.3 Co-processor: nVidia Corporation MCP51 PMU (rev a3) 00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev f1) 00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev f1) 00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2) 00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2) 00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 05:00.0 VGA compatible controller: nVidia Corporation G72M [GeForce Go 7400] (rev a1) 07:06.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306 Fire II IEEE 1394 OHCI Link Layer Controller (rev c0) lsusb: Bus 001 Device 002: ID 0bf8:100f Fujitsu Siemens Computers Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 005: ID 046d:c016 Logitech, Inc. M-UV69a/HP M-UV96 Optical Wheel Mouse Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Software Environment: Fedora 10 default install lsmod: video 28316 0 output 11264 1 video fuse 60992 2 cpufreq_ondemand 15504 1 powernow_k8 24836 1 freq_table 12928 2 cpufreq_ondemand,powernow_k8 nf_conntrack_netbios_ns 10880 0 nf_conntrack_ftp 16696 0 ip6t_REJECT 12160 2 nf_conntrack_ipv6 22984 11 ip6table_filter 11136 1 ip6_tables 26128 1 ip6table_filter ipv6 287272 18 ip6t_REJECT,nf_conntrack_ipv6 kqemu 175128 0 dm_multipath 23704 0 snd_hda_intel 476320 3 nvidia 7797520 28 snd_seq_dummy 11396 0 snd_seq_oss 39104 0 snd_seq_midi_event 14848 1 snd_seq_oss snd_seq 61968 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event snd_seq_device 15380 3 snd_seq_dummy,snd_seq_oss,snd_seq snd_pcm_oss 52224 0 snd_mixer_oss 23168 1 snd_pcm_oss snd_pcm 85512 2 snd_hda_intel,snd_pcm_oss snd_timer 30352 2 snd_seq,snd_pcm snd_page_alloc 16656 2 snd_hda_intel,snd_pcm snd_hwdep 16392 1 snd_hda_intel snd 68984 16 snd_hda_intel,snd_seq_dummy,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep firewire_ohci 30340 0 firewire_core 45504 1 firewire_ohci k8temp 13056 0 soundcore 14992 1 snd forcedeth 61840 0 hwmon 11064 1 k8temp crc_itu_t 10240 1 firewire_core serio_raw 14084 0 pcspkr 11008 0 i2c_nforce2 15624 0 i2c_core 29216 2 nvidia,i2c_nforce2 ac 13320 0 pata_amd 21252 0 battery 21000 0 ata_generic 14084 0 pata_acpi 13184 0 sata_nv 32392 2 sha256_generic 17536 0 cbc 12032 1 aes_x86_64 16384 2 dm_crypt 21128 1 ext4 216120 2 jbd2 75464 1 ext4 crc16 10240 1 ext4 Problem Description: Brightness doesn't work on FS Amilo Pa 1538. After load module "video" /proc/acpi/video is empty. I tested on latest Ubuntu and Gentoo, and it doesn't work too. Steps to reproduce: On FS Amilo Pa 1538 insert module video and go to /proc/acpi/video and enter "ls" command
Will you please attach the output of acpidump? thanks.
in order to get the acpidump, you need to use the latest pmtools at http://www.lesswatts.org/projects/acpi/utilities.php
(In reply to comment #2) > in order to get the acpidump, > you need to use the latest pmtools at > http://www.lesswatts.org/projects/acpi/utilities.php > here is the acpidump result: http://wklej.org/id/17600/ if needed, I can paste it here directly.
Thanks for the info. From the acpidump it seems that there exists the following ACPI objects: >_DOD, _BCL,_BCM But there is no _DOS object, which is required if the system supports display switching or LCD brightness control. At the same time it has the bogus _BCM object, in which nothing can be done. So the problem is related with BIOS. And Linux ACPI can do nothing about it. This issue had better be fixed by BIOS upgrading. Thanks.
Agree. the bogus _BCM method suggests that ACPI backlight control is not available on this laptop. And as it has an external nvidia graphics, I suggest you use some nvidia specific tools to change the backlight. Sorry I don't know what the tool is, but I think you can ask some nvidia experts for help. :) Re-assign to Video-other category. please correct me, If I put this bug to the wrong category. :)
Under Bios I can change the brightness by using Fn+f8 and Fn+f9 - bios remember this settings, separately for battery nad AC. I can also change by nvclock, but the display looks differently than changing in Bios, and each time I invoke nvclock, the zombie-process stay in memory.
After updating system nvclock doesn't make zombie-process. I made a workaround to change brightness using my own script which uses "/sys/class/power_supply/ACAD/online" state and nvclock. I update Bios to latest version, but unfortunately there are no acpi support for brightness. For me works, but not by using ACPI.