[Bug 87112] 24Hz (&23.976Hz) modes broken with recent drivers

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87112

--- Comment #9 from Chris Wilson <chris at chris-wilson.co.uk> ---
Yes, xrandr switches mode correctly. Then something tells to switch back. Do
you have a display manager running in the background responding to RandR
notifications?

What you might like to try is gdb Xorg and "b __sna_crtc_set_mode" to see where
the mode resets are originating from (i.e. whether they are due to client
requests or internal). I suspect external requests, like a display manager
applying its configuration everytime it notices a change.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20141209/ce8c6d41/attachment-0001.html>