I did some testing on audio part with HDMI-HDMI and DP-HDMI cables connected to my Haswell box. Before applying the patch I tested as a reference with the latest -nightly (04-08-2015), 4.0-rc7. Unfortunately, I failed to get any audio over HDMI cable. For a reference I tested with the very same setup the vanillla kernel from Linus tree 4.0-rc7 and with that kernel the audio worked ok. Then I did some GIT bisecting and it turned out that the first commit that I failed to get audio working was aa2fee4286e43b4784982b17669b02cc99c1ae55. To test this patch audio functionality I checkout the -nightly version that works for me and apply the patch and test it. I'll come back with the results later on. I had the module option i915.disable_power_well=0 The test routine that I used for audio testing was speaker-test -c 2 -r 48000 -f S16_LE -t pink --device=plughw:0,3 On Tue, 2015-04-07 at 15:52 +0200, Daniel Vetter wrote: > On Tue, Apr 07, 2015 at 12:29:25PM +0300, Mika Kahola wrote: > > Definitely a good idea to check the audio part as well if there is > > a doubt that by changing CD clock the audio would fail. I can check > > this and I'll get back once I have the results. > > We force a full modeset, which should result in an interrupt on the audio > side, which should result in the audio driver re-reading the current > cdclk. If that's no the case it's buggy already. > -Daniel -- Mika Kahola, Intel OTC _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
