Bug 472294

Summary: Music plays too fast on Dell Precision WorkStation 450
Product: [Fedora] Fedora Reporter: Will Woods <wwoods>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 10CC: kernel-maint, quintela
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OS: Linux   
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Last Closed: 2009-05-27 20:59:22 UTC Type: ---
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alsa-info.txt from Dell Precision WorkStation 450 none

Description Will Woods 2008-11-19 21:37:16 UTC 
Created attachment 324097 [details]
alsa-info.txt from Dell Precision WorkStation 450

My Dell Precision WorkStation 450 has one of those poor stupid ac'97 chips that misses its guess on the clock speed now and then. It should probably get added to the whitelist, as with the similar chip in bug 441087.

I'm attaching alsa-info.txt, but the relevant hardware info is:
PCI Subsys Vendor: 0x1028
PCI Subsys Device: 0x012d

The patch in bug 441087 has:
+   SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),

So adding:
+   SND_PCI_QUIRK(0x1028, 0x012d, "AD1981B", 48000),

should fix this one.

As a workaround, I've put:
options snd_intel8x0 ac97_clock=48000
in /etc/modprobe.conf to ensure I get the right clock value.
Comment 1 Bug Zapper 2008-11-26 05:37:51 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.

More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Comment 2 Will Woods 2009-05-27 20:59:22 UTC 
This seems to be fixed with current kernels.