v4.9-rc3: graphical artefacts in X

From: Pavel Machek
Date: Fri Nov 18 2016 - 06:03:03 EST


With v4.9, if I maximize "nowcast -x" application, I get broken
display (as if someone split the window into rectangles and shuffled
them a bit). Switching virtual desktops either fixes it or breaks it,
depending in how fast I switch. (Yes, strange).

pavel@amd:~$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset
Integrated Graphics Controller (rev 03)

Recompile, reboot, and graphics is okay.

(On thinkpad x60, I have seen other strange problems, mostly when I maximize
video, but not as easily reproducible).

(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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