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On a system where all packages are updated to rawhide 2/24/2006 (udev fixed from cvs to udev-084-5). This is a x86_64 system. Booting with kernel-2.6.15-1.1977_FC5 results in no sound, rebooting with kernel-2.6.15-1.1826.2.14_FC5 (FC5test2 recompiled with 2.6.15.4 patch). has perfectly functioning sound. The hardware is hda_intel. I have checked the loaded modules for both kernels, they are the same EXCEPT in the column for how many modules are using snd_hda_intel I have 0 for the new kernel an 3 for the old kernel, despite the fact that snd_hda_intel is listed as being used. Any ideas? The actual diff is: 31c31 < snd 13 snd_hda_intel,snd_hda_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer --- > snd 9 snd_hda_intel,snd_hda_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer 33c33 < snd_hda_intel 3 --- > snd_hda_intel 0 36c36 < snd_pcm 4 snd_hda_intel,snd_hda_codec,snd_pcm_oss --- > snd_pcm 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss 43c43 < snd_timer 3 snd_seq,snd_pcm --- > snd_timer 2 snd_seq,snd_pcm
Some more experimentation: modprobe -r snd_hda_intel modprobe snd_hda_intel Produces two messages: kernel: azx_get_response timeout Message from syslogd@compsci at Fri Feb 24 13:54:20 2006 ... compsci kernel: general protection fault: 0000 [1] SMP
Issue seen by other people as well. It is just been discussed on the Linux-Kernel List. http://www.tux.org/lkml/
Created attachment 126450 [details] log file from sound card detection tool This is the output of the sound card detection tool. kernel 2.6.15-1.2054_FC5 I can see rhythmbox playing my ogg files but there is no sound coming out of the speakers nor headphones.
This is discussed in alsa bug #1843 as a regression for 2.6.16. After a long process it is fixed in the latest alsa-kernel cvs. I just made a patch from the cvs tree against 2.6.16 FC5 kernel and sound is working fine. This changes the version to 1.0.11rc3 for alsa-kernel. PS: The alsa bug talk about laptops but my problem was actually with a DELL desktop, so it works for all hda-intel problems. At least as far as hearing something!
Audio is silent here too; a new Dell Precision box, ICH7 chipset, STAC92xx audio. Added reference to the ALSA bug.
*** Bug 187905 has been marked as a duplicate of this bug. ***
Updating summary, note this is broken in 2.6.16-1.2080_FC5 still too.
Created attachment 127658 [details] alsa patch for 2.6.16 based FC5 kernel
To fix this for FC5 stable you need to apply the alsa kernel patch from 3/22/2006 since this is 2.6.16 based. I am attaching what I have been using on 2.6.16-1.2080_FC5 recompiled with 2.6.16.4. The 2.6.17 based kernels would have this or a later version in already.
*** Bug 189738 has been marked as a duplicate of this bug. ***
*** Bug 190295 has been marked as a duplicate of this bug. ***
FYI, it seems that FC4 with recently updated 2.6.16 kernels suffers from this bug as well. So I hope for official fix to be released for FC4 as well.
Anything new on this one? I think this should be quite high priority for Redhat hackers as Dell officially supports RHEL and current kernel/alsa still doen't work on new Dells.
Works for me on kernel 2.6.17-1.2139_FC5smp
Ditto here since Alsa is updated to rc4 for 2.6.17. I am closing this bug.
Well, not so good for a dell D820. I'm running 2.6.17-1.2139_FC5smp. I get the following from dmegs: --BEGIN-- snd_pcm: disagrees about version of symbol snd_timer_notify snd_pcm: Unknown symbol snd_timer_notify snd_pcm: disagrees about version of symbol snd_timer_interrupt snd_pcm: Unknown symbol snd_timer_interrupt snd_pcm: Unknown symbol snd_verbose_printk snd_pcm: disagrees about version of symbol snd_timer_new snd_pcm: Unknown symbol snd_timer_new snd_hda_codec: Unknown symbol snd_pcm_hw_constraint_list snd_hda_codec: Unknown symbol snd_pcm_hw_constraint_step snd_hda_codec: Unknown symbol snd_pcm_format_width snd_hda_intel: Unknown symbol snd_pcm_new snd_hda_intel: Unknown symbol snd_pcm_limit_hw_rates snd_hda_intel: Unknown symbol snd_pcm_lib_preallocate_pages_for_all snd_hda_intel: Unknown symbol snd_hda_bus_new snd_hda_intel: Unknown symbol snd_hda_build_pcms snd_hda_intel: Unknown symbol snd_hda_codec_new snd_hda_intel: Unknown symbol snd_hda_queue_unsol_event snd_hda_intel: Unknown symbol snd_pcm_lib_malloc_pages snd_hda_intel: Unknown symbol snd_pcm_lib_ioctl snd_hda_intel: Unknown symbol snd_pcm_lib_free_pages snd_hda_intel: Unknown symbol snd_hda_calc_stream_format snd_hda_intel: Unknown symbol snd_pcm_set_ops snd_hda_intel: Unknown symbol snd_hda_suspend snd_hda_intel: Unknown symbol snd_pcm_suspend_all snd_hda_intel: Unknown symbol snd_hda_resume snd_hda_intel: Unknown symbol snd_pcm_hw_constraint_integer snd_hda_intel: Unknown symbol snd_hda_build_controls snd_hda_intel: Unknown symbol snd_pcm_period_elapsed --END-- [bpm]$ sudo rpm -V kernel-smp-2.6.17-1.2139_FC5 [bpm]$ so the kernel is OK. What I have in the modprobe.conf: --BEGIN-- # ALSA portion alias char-major-116 snd alias snd-card-0 snd-hda-intel options snd-card-0 index=0 model=laptop-eapd --END--