Bug Report Problem: No sound is played from the laptop's speakers. Apparent Cause: Kernel Upgrade from gentoo-sources-2.6.22-r9 to gentoo-sources-2.6.23-r3. Reproducible on: gentoo-sources-2.6.23 gentoo-sources-2.6.23-r1 gentoo-sources-2.6.23-r2 gentoo-sources-2.6.23-r3 vanilla-sources-2.6.23.8. Alsa Driver Version: 1.0.15. System Details: sys_vendor = "TOSHIBA" sys_product = "Satellite P100" sys_version = "PSPA6E-01F015PT" bios_version = "V4.20" Phoenix Bios Additional Notes: - I had experienced this very same problem with all kernels before 2.6.20/2.6.21 (not sure) - Speakers worked perfectly under gentoo-sources-2.6.22* - Sound Card seems to be working, because USB Headphones and Bluetooth Audio Devices play sound, which leads me to exclude alsa issues. - Built in Headphones Jack doesn't work too. - No changes were made to the kernel's config. - From googling around, I believe the problem resides in a bugged DSDT. However, I am not qualified to make the necessary changes, and don't understand why it didn't work at first, started working under 2.6.22 and stopped working again with 2.6.23. I tried to make this bug report as concise as I could. I am not a native English speaker, so If you have any problems understanding something that I wrote, or need any more information, please ask me and I will answer as soon as I can. Thank you, Luís Costa luisfcosta@gmail.com Reproducible: Always
Your USB headphones and bluetooth devices do not use the sound card. It sounds like the sound card is not working under these kernels. Please post output of "cat /proc/asound/cards" and attach dmesg from a working 2.6.22 kernel and a broken 2.6.23 kernel.
Created attachment 137743 [details] Kernel 2.6.22 info
Created attachment 137745 [details] Kernel 2.6.23 info
Thank you for the quick response. I have attached the info you requested. I had never used bugzilla's attachments before. Should I use something else?
What arguments to you pass to the kernel in grub.conf? For 2.6.22 kernels I use acpi_osi=!Linux rather than editing the DSDT but this also stops working on 2.6.23-gentoo{,-r1,-r2,-r3}.
Jack, I don't pass any arguments at all with 2.6.22. It just worked. However, I have tried adding "acpi_osi=!Linux" to the 2.6.23kernel (I read it somewhere, but it still didn't work. Something must have changed in 2.6.23.
Just in case it helps complete the picture: My Toshiba Satellite P100-j01 would have no sound on some 2.6 kernels unless I replaced the DSDT, which I did until 2.6.22 when I discovered acpi_osi=!Linux. If I did neither the sound wouldn't work at all. I've only tried acpi_osi=!Linux on 2.6.23 (I can no longer find the patch for the 3.30 DSDT), but no luck.
I have very limited understanding of what it needs to be done in order to correctly patch a DSDT. That said, I tried fixing mine, at least the parts that were supposedly connected to the sound card, but the probem still persists. It is highly likely that I did something wrong, but the iasl compiler didn't complain about any of the things I changed- just a few warnings. The thing that intrigues me here, is the fact that I didn't have to add anything like "acpi_osi=!Linux" during the 2.6.22* series, which means that somehow the kernel was able to bypass the bugged DSDT, or at least ignore it. I'm keeping 2.6.22 for the time being, as sound is a major feature for me.
I have the same problem running 2.6.23-tuxonice-r4 on a Toshiba Satego P100-10F (other name for Satellite). Interestingly, I already fixed my DSDT so that it builds without errors _or_ warnings, and it still doesn't work. acpi=off "fixes" it, but I kinda need my acpi :)
Still no progress regarding this matter? I am looking forward to going from 2.6.22 to 2.6.23.
boroshan on f.g.o has claimed that this is fixed on 2.6.24 (http://forums.gentoo.org/viewtopic.php?p=4795322). Can someone confirm? If this is true, is it worth closing this bug?
Yes, I can confirm the bug has been fixed in kernel 2.6.24. I have the alsa-drivers built in and I didn't need any DSDT patch. Great great work :D!
Thanks for your testing efforts, everyone. I'm closing this as we expect to be stabilizing the 2.6.24 version of gentoo-sources sometime this week.
