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Ubuntu 16.10 (yakkety) reached end-of-life on July 20, 2017.
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It looks like it is related to the positions of the two displays to each
other. I normally like the internal display to be below the external
one. By default it tries to layout the display next to each other. When
adding the external display I can see the wallpaper twice on the
external display.
I just found some log messages from Unity panel service in
/var/log/syslog. I've no clue if they are related to the problem, but
maybe ...
Oct 19 21:43:58 bbc-98 unity-panel-ser[4339]: Sync failed, now we've got
extra layout nodes.
Oct 19 21:45:29 bbc-98 unity-panel-ser[4339]: message
I am also using VGA and don't have any detection problems.
I don't know if I have the same issue as OP though.
Here is a picture of my issue (attachment).
** Attachment added: "wrong size and flickering"
I'm not sure if it is a dupe. I do not see a flickering on the internal
display. ... and I'm using VGA ;-)
But I think the source of the problem might be the same (unity/compiz)
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probably a dupe of
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1626935
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https://bugs.launchpad.net/bugs/1634220
Title:
Wallpaper does not resize correctly when adding external
I think I have the same bug with Ubuntu 16.10.
16.04 was fine.
Additionally, setting a new wallpaper is a bit slow. The new wallpaper
appears after a delay of 2 seconds without any special effect (no fading
in/out).
Graphics card : Intel HD graphics.
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xorg (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1634220
Title:
