Red Hat Bugzilla – Bug 246358
No sound - Toshiba P100- x86_64 Intel ICH7 card
Last modified: 2007-11-30 17:12:09 EST
Description of problem: I have a new laptop and just installed FC7 and I have no sound. I have tried several suggestions to fix the problem. I am NOT a Linux guru. I have run alsamixer and channels are not muted. I added the option "model=3stack" but that also did nothing. I have installed the latest alsa drivers. I have even sacrificed a chicken to TUX the Linux God. He was not impressed. Additional info:
Created attachment 158302 [details] scsconfig.log
Created attachment 158303 [details] scrun.log
Probably means nothing but when I tried to play a test sound using "aplay -D hw:0 /usr/share/sounds/phone.wav --- I got the following warning: [root@localhost ~]# aplay -D hw:0 /usr/share/sounds/phone.wav Playing WAVE '/usr/share/sounds/phone.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Warning: rate is not accurate (requested = 44100Hz, got = 48000Hz) please, try the plug plugin
Ok, after many hours online I think that it may be possible that I have a DSDT problem. I found instructions on how to fix a DSDT at this link: http://forums.gentoo.org/viewtopic.php?t=122145 Unfortunately, obtaining my computer science degree did not involve much Linux. Simple steps like..... 6. Recompile your kernel involve many more steps like google "how to recompile a Linux kernel".... Yes, I am an idiot. I have been in Linux-land for only a few days now. I just want sound without booting into the Windows side of my box. UUUGGG....I seem to be getting some sick satisfaction from this quest!!??......but not much sleep.
OK, it appears that the only fix for some (not all) Toshiba users that employ the Conexant codec is to either: 1. Custom build your DSDT. (not for beginners) or 2. Add "acpi=off irqpol" to your boot command line and give up some of your power management functions. I selected option #2 and now I have perfect sound and no battery life indicator in my toolbar. I can live with that until a better fix is worked out.