[Bug 91436] PSR screen freeze after modesetting

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91436

--- Comment #9 from ivan <ivan.mitev at gmail.com> ---
Created attachment 117959
  --> https://bugs.freedesktop.org/attachment.cgi?id=117959&action=edit
dmesg with debug patch

[note: comment redacted from bug 91438]

I compiled/tested a kernel from the psr-delayed-enable branch (2015-08-21)

Laptop on AC, undocked, psr=1, fbc=0

- at boot after modeset, screen freezes as before
- a suspend/resume cycle doesn't help with "unfreezing" the display. At resume
the display will show the current laptop state (eg. if I suspend the laptop
when the screen is frozen at the luks password prompt, at resume I'll see X's
login screen), but the screen will freeze instantly again (can't see the mouse
pointer moving).
- laptop is responsive though, ssh'ed into it; see attached dmesg with debug
output

- dmesg -c > boot.dmesg.2; the screen freezes between 5 and 6 seconds after
boot
- dmesg > boot.dmesg.2.after_resume: dmesg after a suspend/resume cycle

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150828/436edad9/attachment.html>