[Bug 105405] [BDW] After screen turn off / turn on rendering get slow, one frame per few dozens of seconds [CRTC:39:pipe A] flip_done timed out

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105405

--- Comment #10 from Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com> ---
(In reply to Lakshmi from comment #9)
> Dhinakaran, any advice on this?

I am not sure what is going on with BDW, somebody needs to debug. The logs
attached here are going to be useful when that happens. 

My advice is to change the priority to lowest as the timeouts do not happen
with default boot options and the kernel prints a warning when PSR is enabled
via the module parameter.
[    1.824400] Setting dangerous option enable_psr - tainting kernel

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