+Curtis Malainey <cujomalainey@xxxxxxxxxx> -curtis@xxxxxxxxxxxx Moving chain to my corp email. On Wed, Mar 18, 2020 at 10:09 AM Pierre-Louis Bossart < pierre-louis.bossart@xxxxxxxxxxxxxxx> 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. >
