On Thu, 2010-12-09 at 17:14 +0100, Sergio Gelato wrote: > Package: linux-image-2.6.32-5-amd64 > Version: 2.6.32-28 > Severity: normal > > On this hardware: > > 00:14.2 Audio device : ATI Technologies Inc SBx00 Azalia (Intel HDA) [1002:4383] > Subsystem: ASUSTeK Computer Inc. M4A785TD Motherboard [1043:836c] > Kernel driver in use: HDA Intel > 01:05.1 Audio device : ATI Technologies Inc RS880 Audio Device [Radeon HD 4200] [1002:970f] > Subsystem: ASUSTeK Computer Inc. M4A785TD Motherboard [1043:83a2] > Kernel driver in use: HDA Intel > > I get no sound through the headphone output when using the above named kernel. > I do get sound through the rear speaker output. > > Using the kernel in Ubuntu 10.04 (2.6.32-26-generic version 2.6.32-26.48) > on the same hardware I do get sound through the headphone output. > > Looking at the kernel source code, I see that Debian's kernel includes > many patches backported from newer kernels (there are 19 patches in > debian/patches/features/all/hda-via/). [...] Yes, we have applied these changes in order to add support for some newer chips. Ubuntu has not made any changes to the driver for the VIA codec. This might be a problem with the headphone detection feature. You could try to disable this by turning off the 'Jack Detect' switch. Ben. -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse.
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