On Tue, Mar 31, 2020 at 10:38:27PM +0200, Takashi Iwai wrote:

On Tue, 31 Mar 2020 19:40:46 +0200, Giacomo Comes wrote:

...

Hi, the new 5.6 kernel breaks the sound on my Intel Compute Stick (baytrail hdmi audio). command 'ls -l /sys/class/sound' shows:

card0 -> ../../devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card0 controlC0 -> ../../devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card0/controlC0 pcmC0D0p -> ../../devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card0/pcmC0D0p pcmC0D1p -> ../../devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card0/pcmC0D1p timer -> ../../devices/virtual/sound/timer

dmesg output contains:

input: Intel HDMI/DP LPE Audio HDMI/DP,pcm=0 as /devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card0/input7 input: Intel HDMI/DP LPE Audio HDMI/DP,pcm=1 as /devices/pci0000:00/0000:00:02.0/hdmi-lpe-audio/sound/card0/input8

which is the same as with kernel 5.5, however with the new kernel there is no audio output and the kde audio applet shows no audio device.

Is anybody haware of this problem? If necessary, I can bisect the kernel to find the commit that introduced the regression.

I haven't heard of this bug, and yes, it'd be appreciated if you can bisect.

In anyway, please open a report on Bugzilla. At best, give alsa-info.sh outputs from both working and non-working kernels. Run the script with --no-upload option and attach the output files to Bugzilla.

Bug number is 1168383 The commit that introduced the issue is: commit 58d124ea2739e1440ddd743d46c470fe724aca9a Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Date: Thu Oct 31 12:26:04 2019 +0100 drm/i915: Complete crtc hw/uapi split, v6. It's a problem that the intel people have to look into. Giacomo -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org