Created attachment 285919 [details] alsa-info.sh output from the affected system I have a Dell Latitude E7450 laptop on which I am running kernel 5.4-rc7 and PulseAudio 13. The mic mute LED does not follow the mic mute status. The mic mute button does work to mute the mic and I can manually turn the LED on and off manually by using /sys/class/leds/platform::micmute/brightness, so it seems there is just some missing bit to integrate the two. I have attached the output of alsa-info.sh. If you need any other information, I will be happy to provide it.
Does the patch below work?
Created attachment 286619 [details] Test patch
The mic mute LED still doesn't work. I also get the following error message in dmesg on boot when the codec is initialized: [ 3.297990] ------------[ cut here ]------------ [ 3.297999] WARNING: CPU: 3 PID: 655 at sound/pci/hda/patch_realtek.c:5073 alc_fixup_headset_mode+0xec/0xf0 [snd_hda_codec_realtek] [ 3.298000] Modules linked in: snd_hda_codec_realtek(+) snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm mei_hdcp snd_seq_midi intel_rapl_msr snd_seq_midi_event x86_pkg_temp_thermal intel_powerclamp snd_rawmidi kvm_intel snd_seq kvm dell_laptop ledtrig_audio irqbypass snd_seq_device dell_smm_hwmon crct10dif_pclmul snd_timer crc32_pclmul uvcvideo ghash_clmulni_intel iwlmvm binfmt_misc mac80211 libarc4 nls_iso8859_1 videobuf2_vmalloc videobuf2_memops aesni_intel crypto_simd videobuf2_v4l2 cryptd videobuf2_common glue_helper iwlwifi snd intel_cstate dell_wmi intel_rapl_perf videodev dell_smbios btusb dcdbas mc btrtl cfg80211 joydev btbcm input_leds serio_raw sparse_keymap dell_wmi_descriptor wmi_bmof btintel mei_me soundcore mei processor_thermal_device intel_rapl_common intel_soc_dts_iosf int3403_thermal dell_smo8800 mac_hid acpi_pad int3400_thermal dell_rbtn int3402_thermal int340x_thermal_zone acpi_thermal_rel sch_fq_codel [ 3.298030] coretemp rfcomm bluetooth ecdh_generic ecc parport_pc ppdev lp parport iTCO_wdt iTCO_vendor_support ip_tables x_tables autofs4 i915 i2c_algo_bit drm_kms_helper syscopyarea sdhci_pci sysfillrect sysimgblt fb_sys_fops cqhci psmouse lpc_ich i2c_i801 sdhci ahci drm libahci e1000e wmi video [ 3.298044] CPU: 3 PID: 655 Comm: modprobe Not tainted 5.5.0-050500rc4-lowlatency #201912291846 [ 3.298045] Hardware name: Dell Inc. Latitude E7450/, BIOS A22 10/03/2019 [ 3.298051] RIP: 0010:alc_fixup_headset_mode+0xec/0xf0 [snd_hda_codec_realtek] [ 3.298052] Code: e8 00 00 00 48 89 e5 83 fa 10 74 0c 83 fa 40 74 07 e8 78 f4 ff ff 5d c3 48 c7 80 2c 0a 00 00 00 00 00 00 e8 66 f4 ff ff 5d c3 <0f> 0b eb a5 0f 1f 44 00 00 55 48 89 e5 41 54 49 89 fc 85 d2 75 62 [ 3.298053] RSP: 0018:ffffa3c38073ba38 EFLAGS: 00010282 [ 3.298055] RAX: ffff96fe0a311000 RBX: ffffffffc0d65148 RCX: 0000000000000003 [ 3.298056] RDX: 0000000000000006 RSI: ffff96fe0a3114dc RDI: 0000000000000006 [ 3.298056] RBP: ffffa3c38073ba40 R08: 0000000000000003 R09: ffff96fe0c803880 [ 3.298057] R10: ffffa3c38073ba28 R11: ffffa3c48073b9fb R12: 0000000000000005 [ 3.298058] R13: 0000000000000001 R14: ffff96fe0a311000 R15: ffff96fe0a3d9000 [ 3.298060] FS: 00007ff4f87b2500(0000) GS:ffff96fe0e580000(0000) knlGS:0000000000000000 [ 3.298061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.298062] CR2: 00007fe0fd26e130 CR3: 00000004067e8005 CR4: 00000000003606e0 [ 3.298063] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3.298064] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 3.298064] Call Trace: [ 3.298071] ? alc_fixup_headset_mode_no_hp_mic+0x21/0x30 [snd_hda_codec_realtek] [ 3.298078] apply_fixup+0x185/0x270 [snd_hda_codec] [ 3.298085] snd_hda_apply_fixup+0x22/0x30 [snd_hda_codec] [ 3.298090] patch_alc269+0x2b8/0x770 [snd_hda_codec_realtek] [ 3.298095] hda_codec_driver_probe+0x99/0x170 [snd_hda_codec] [ 3.298098] ? driver_sysfs_add+0x72/0xd0 [ 3.298100] really_probe+0x2b3/0x3e0 [ 3.298103] driver_probe_device+0xbc/0x100 [ 3.298105] device_driver_attach+0x5d/0x70 [ 3.298107] __driver_attach+0x8f/0x150 [ 3.298109] ? device_driver_attach+0x70/0x70 [ 3.298111] bus_for_each_dev+0x7e/0xc0 [ 3.298113] driver_attach+0x1e/0x20 [ 3.298114] bus_add_driver+0x152/0x1f0 [ 3.298116] driver_register+0x74/0xd0 [ 3.298118] ? 0xffffffffc0d75000 [ 3.298122] __hda_codec_driver_register+0x5d/0x60 [snd_hda_codec] [ 3.298126] realtek_driver_init+0x23/0x1000 [snd_hda_codec_realtek] [ 3.298129] do_one_initcall+0x4a/0x230 [ 3.298132] ? kmem_cache_alloc_trace+0x17f/0x230 [ 3.298135] do_init_module+0x62/0x250 [ 3.298137] load_module+0x10b6/0x1210 [ 3.298141] __do_sys_finit_module+0xbe/0x120 [ 3.298142] ? __do_sys_finit_module+0xbe/0x120 [ 3.298146] __x64_sys_finit_module+0x1a/0x20 [ 3.298148] do_syscall_64+0x57/0x1b0 [ 3.298150] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 3.298152] RIP: 0033:0x7ff4f88f795d [ 3.298154] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 03 e5 0c 00 f7 d8 64 89 01 48 [ 3.298154] RSP: 002b:00007ffc2dde1128 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 3.298156] RAX: ffffffffffffffda RBX: 0000556a2b6ebab0 RCX: 00007ff4f88f795d [ 3.298157] RDX: 0000000000000000 RSI: 0000556a2b6dd348 RDI: 0000000000000001 [ 3.298158] RBP: 0000000000040000 R08: 0000000000000000 R09: 0000000000000000 [ 3.298159] R10: 0000000000000001 R11: 0000000000000246 R12: 0000556a2b6dd348 [ 3.298159] R13: 0000000000000000 R14: 0000556a2b6f3210 R15: 0000556a2b6ebab0 [ 3.298162] ---[ end trace 43e5dd8bf3bb81ac ]---
My bad, I forgot that this fixup chain is tricky. The revised patch is below.
Created attachment 286627 [details] Revised test patch
That patch works great. There is no more crash message and the mic mute LED works, both with using the button and when (un)muting it from software. Thanks!
Good to hear. I submitted the patch and will merge it.