Public bug reported:
Ubuntu: 16.04
xorg 1:7.7+13ubuntu3
Always reproducible, steps:
a) start computer
b) verify that Xorg is using some 0.7% CPU
c) f1+ctrl+shift #go to virtual terminal
d) f7+ctrl #back to the xorg
Maybe 60 seconds mouse cursor can be barely moved, but keyboard and clicks are
not responding after all. After that run script for monitoring CPU usage of
Xorg.
e)
while [ 1 ] ; do top -b -n 1 | grep Xorg | awk {'print $9'} ; sleep 1; done
CPU usage is almost 100% for 12...71 minutes and then calms down.
Not sure if this relates display controllers (lspci | grep VGA):
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor
Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 650M
Mac Edition] (rev a1)
Or drivers (lsmod | grep video):
video 40960 3 i915,nouveau,apple_gmux
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1635872
Title:
xorg freezes for long time after using virtual terminal
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