Hey Pierre-Louis, On Fri, 2017-10-13 at 18:49 -0500, Pierre-Louis Bossart wrote: > > On 10/13/2017 01:40 PM, Bastien Nocera wrote: > > Hey, > > > > As I was trying to test PulseAudio HDMI LPE audio support fixes, I > > realised that the internal sound card of my Surface 3 wasn't > > working > > anymore, using the same user-space configuration. > > > > Looks like detection of the device regressed between 2 versions. > > Does > > this look familiar to anyone, or should I start bisecting? (which > > will > > take me absolutely ages, as the CPU is anemic on that machine) > > Yes this looks familiar unfortunately. Surface has a BIOS quirk > iirc, > and there are reports of broken audio on other platforms that have a > similar quirk, see > https://bugzilla.kernel.org/show_bug.cgi?id=96691 where the patch > 7827d66946ad3af734ed46d1d68c23fa6974595c is flagged as being the > issue. > > I tried providing a patch for what I think is the problem, but the > reports from users were inconsistent and I don't have access to the > hardware. > > If you could try both the revert and the suggested fix (separately) > it'd > help a great deal I compiled 2 test kernels with each one of those patches, tested them both and added the results to the bug. Did you want to continue the discussion here, or should I add that information to the (rather long-winded) bug? Cheers _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
