Comment # 7 on bug 1029634 from Oliver Kurz

Looking at the changelog of kernel-default I can find the following changes
which sound related:

```
* Wed Feb 01 2017 tiwai@suse.de
- drm/i915/gen9: Fix PCODE polling during CDCLK change
  notification (bsc#1015367).
- drm/i915: Mark CPU cache as dirty when used for rendering
  (bsc#1015367).
- commit 68975cf

* Wed Feb 01 2017 tiwai@suse.de
- drm/i915: Don't init hpd polling for vlv and chv from
  runtime_suspend() (bsc#1014120).
- drm/i915/vlv: Prevent enabling hpd polling in late suspend
  (bsc#1014120).
- drm/i915: Mark i915_hpd_poll_init_work as static (bsc#1014120).
- drm/i915: Fix watermarks for VLV/CHV (bsc#1011176).
- commit 3fb681b

* Wed Feb 01 2017 tiwai@suse.de
- Delete previous two fixes for i915 (bsc#1019061).
  These upstream fixes brought some regressions, so better to revert for now.
- patches.drivers/drm-i915-Prevent-PPS-stealing-from-a-normal-DP-port
- patches.drivers/drm-i915-dp-Restore-PPS-HW-state-from-the-encoder-re
- commit ac2223d

* Wed Feb 01 2017 tiwai@suse.de
- drm/i915: Workaround for DP DPMS D3 on Dell monitor
  (bsc#1019061).
- drm/i915: Prevent PPS stealing from a normal DP port on VLV/CHV
  (bsc#1019061).
- drm/i915/dp: Restore PPS HW state from the encoder resume hook
  (bsc#1019061).
- commit 005222b
```

Do any of these sound related to you?