No sorry bisections are not appropriate yet. As the latest
mainline after all still has the bug I am trying this work
around as per Phil Hopkins:
Older Intel graphics adapters may need UXA acceleration instead of the
default. The work-around is to change the Xorg acceleration method to
UXA.
Edit (or create) as root or sudo a file named /etc/X11/xorg.conf as
follows (there should be a tab before each line except the first and the
last):
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "uxa"
EndSection
So far on the stock 15.10 4.2 kernel no problems. Will give it
a few more minutes.
** Tags removed: needs-bisect
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https://bugs.launchpad.net/bugs/1509556
Title:
Kubuntu Wily upgrade screen glitch with 4.2 kernel
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