Red Hat Bugzilla – Bug 145925
2.6.10-1.741_FC3 Breaks Sound (alsa?) on TP T40
Last modified: 2015-01-04 17:16:04 EST
New Thinkpad T40 with..
Analog Devices AD1981A AC'97 SoundMAX Codec (Full-duplex)
Works great with the kernel from the FC3 Install CD.
After the first up2date session, updating only the kernel packages,
the sound is broken. Any attempt to change the sound system from
Control Center freezes X.
Version-Release number of selected component (if applicable):
2.6.9-1.667 Sound good
2.6.10-1.741_FC3 Sound broke
Did it twice.
Steps to Reproduce:
1. Fresh FC3 install
2. Up2date Kernel packages to 2.6.10-1.741_FC3
3. Broken Sound, can't even play CD.
I too have an IBM ThinkPad T40 (2373-7CG).
The Multimedia audio controller is: Intel Corp. 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01).
With kernel 188.8.131.52.741_FC3, I have no sound at all, but X works OK
and does not freeze.
With kernel 2.6.9-1.681_FC3, sound works OK.
*** This bug has been marked as a duplicate of 144742 ***
I followed suggestions in 144742, and indeed muting 'Head Phone Jack
Sense' and 'Line Jack Sense' resolves the problem.
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.