On Tue, 12 May 2015, Thomas Gummerer t.gummerer@gmail.com wrote:
Hi,
I noticed that on my machine the screen starts to flicker after I suspend and resume my machine, on the main laptop display if an external display is attached with kernel v4.1-rc1. I tracked the regression down to commit c9f038a1a592 ("drm/i915: Don't assume primary & cursor are always on for wm calculation (v4)"), and sent a patch that fixes that behavior at [1] about two weeks ago, although I'm not sure it's the right thing to do, as I'm not very familiar with the code. The same bug still exists in vv4.1-rc3.
Jan Niehusmann confirmed the behavior, but there has been no further discussion on the topic. I also forgot to cc the people that were involved in the patch that caused the regression (sorry about that).
Is there anything else that I can do to help fixing this issue?
Is this the same as https://bugzilla.kernel.org/show_bug.cgi?id=98141 ?
BR, Jani.
Thanks, Thomas
[1] http://lists.freedesktop.org/archives/intel-gfx/2015-April/065494.html