[Bug 90469] [BYT dsi] WARNING: CPU: 3 PID: 265 at drivers/gpu/drm/drm_irq.c:1130 drm_wait_one_vblank+0x177/0x180()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90469

--- Comment #25 from Christian Hartmann <cornogle at googlemail.com> ---
Created attachment 117757
  --> https://bugs.freedesktop.org/attachment.cgi?id=117757&action=edit
dmesg of 4.2.0.79-rc7 with Seq3 patchseries (9 patches) included, but this time
I have a visible screen

ups, I have to retest and do some reboots to be sure, seems to work now as
expected and I have a normal screen output.

Tested serveral reboots and I discovered the following:

sometimes I got a normal screen output, sometimes not. I can not reproduce this
behaviour. 

At first it seems I have to reboot three times until I got a visible screen,
but as said before, it is not reproduceable. At the next reboot it can work
again or fail as usually.

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