On Wed, Mar 18, 2020 at 11:05:21AM +0100, Cezary Rojewski wrote: > On 2020-03-18 10:57, Dominik Brodowski wrote: > > > > > > > > Unfortunately, I cannot bisect this issue easily -- i915 was broken for > > > > quite some time on this system[*], prohibiting boot... > > > > > > Hmm, sounds like that issue is quite old. DSP for Haswell and Broadwell is > > > available for I2S devices only, so this relates directly to legacy HDA > > > driver. Compared to Skylake+, HDAudio controller for older platforms is > > > found within GPU. My advice is to notify the DRM guys about this issue. > > > > > > Takashi, are you aware of problems with HDMI on HSW/ BDW or should I just > > > loop Jani and other DRM peps here? > > > > Well, it works on v5.5, so this issue is not really "quite old" (the "no > > context buffer need to restore!" message seen there seems harmless). > > > > Thanks again, and best wishes, > > Dominik > > > > Was commenting the "i915 was broken for quite some time on this system[*], > prohibiting boot...". Unless I misunderstood you, this ain't a DSP driver > issue but HDAudio/iDisp one. Essentially, these are two issues you mentioned > here. Ah, sorry for the confusion. That issue was introduced post v5.5 as well, but fixed for v5.6-rc4 -- meaning that it works now, but that bisecting between v5.5 and v5.6-rc4 is not working as such. Thanks, Dominik
