+Ross Zwisler <zwisler@xxxxxxxxxx> Do we have any BDW boards that use the rt286 codec? I can't recall any. Also I never saw this issue, did you? On Wed, Mar 18, 2020 at 10:20 AM Dominik Brodowski < linux@xxxxxxxxxxxxxxxxxxxx> wrote: > On Wed, Mar 18, 2020 at 12:08:24PM -0500, Pierre-Louis Bossart wrote: > > On 3/18/20 11:20 AM, Dominik Brodowski wrote: > > > On Wed, Mar 18, 2020 at 10:13:54AM -0500, Pierre-Louis Bossart wrote: > > > > > > > > > > > > > > > While 5.5.x works fine, mainline as of ac309e7744be > (v5.6-rc6+) causes me > > > > > > > some sound-related trouble: after boot, the sound works fine > -- but once I > > > > > > > suspend and resume my broadwell-based XPS13, I need to switch > to headphone > > > > > > > and back to speaker to hear something. But what I hear isn't > music but > > > > > > > garbled output. > > > > > > > > It's my understanding that the use of the haswell driver is opt-in > for Dell > > > > XPS13 9343. When we run the SOF driver on this device, we have to > explicitly > > > > bypass an ACPI quirk that forces HDAudio to be used: > > > > > > > > > https://github.com/thesofproject/linux/commit/944b6a2d620a556424ed4195c8428485fcb6c2bd > > > > > > > > Have you tried to run in plain vanilla HDAudio mode? > > > > > > I had (see 18d78b64fddc), but not any more in years (and I'd like to > keep > > > using I2S, which has worked flawlessly in these years). > > > > ok. I don't think Intel folks have this device available, or it's used > for > > other things, but if you want to bisect on you may want to use [1] to > solve > > DRM issues. I used it to make Broadwell/Samus work again with SOF. > > > > [1] > https://gitlab.freedesktop.org/drm/intel/uploads/ef10c6c27fdc53d114f827bb72b078aa/0001-drm-i915-psr-Force-PSR-probe-only-after-full-initial.patch.txt > > > > An alternate path would be to switch to SOF. It's still viewed as a > > developer option but Broadwell/Samus work reliably for me and we have a > > Broadwell-rt286 platform used for CI. > > What do you mean with SOF? And no other ideas on the root cause than a > tedious bisect? > > Thanks, > Dominik >
