https://bugzilla.kernel.org/show_bug.cgi?id=111271
Ville Syrjala <ville.syrjala at linux.intel.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ville.syrjala at linux.intel.c | |om --- Comment #4 from Ville Syrjala <ville.syrjala at linux.intel.com> --- commit 9125e6186822b2698da17690416cd1b55c030115 Author: Ville Syrjälä <ville.syrjala at linux.intel.com> Date: Mon Jun 3 16:10:40 2013 +0300 drm: Add drm_plane_force_disable() just moves code around. So can't see how it could be related to this. Well, actually it does add a plane->fb NULL check, so I suppose that could be somehow related if something else is buggy and clears plane->fb while the plane is still enabled. But actually, the mgag200 driver doesn't even do planes (nor is the hardware even capable of turning off the primary plane independent of the crtc) so not sure why this would have anything to do with the problem. Without a picture it's a bit hard to know, but black horizontal lines at the left edge of the screen has a feel of underruns. I have seen such things plenty of times on my G550 when using the video overlay with eg. 1920x1080 mode with reduced blanking, if the overlay is postioned too close to the left edge of the screen. It's possible the hw cursor might suffer from similar issues. Looking at the driver the hiprilvl computations seem a bit dubious at best. Possibly by tweaking that stuff it might be possible to eliminate the underruns, but no guarantees. -- You are receiving this mail because: You are watching the assignee of the bug.