Public bug reported:
After Waking Up from Suspend to RAM the "close button" icon (graphic) of the
window and the border of the window is broken on 4k display. If I restart unity
(ALT+F2 -> unity) then everything is fine.
So this is why I think this is a unity bug.
Description: Ubuntu 16.04.2 LTS
Release: 16.04
unity 7.4.0+16.04.20160906-0ubuntu1
I just installed Ubuntu 16.04.2 LTE (date March 11,2017) and upgraded
all packages. Then I see the bug.
I tried other desktops on other installations on the same PC and I can't
see the bug. I can reproduce it only with unity.
I have a nVidia Geforce 1050 Ti with the proprietary driver 375.39 (up to date)
from the graphics-drivers ppa from launchpad.
I think this is not a driver issue. The same driver works with KDE or even
Linux Mint with Cinnamon. There is no graphic bug with other desktops.
more information:
I have different behaviors on the 4k display with different scaling factors in
unity.
- If I have the scaling factor 1 then only the close button graphic is broken.
- If I have the scaling factor 1.25 then the close button and the border of the
window is broken. There is a terrible big white border around the window. If I
move the window the white big border is moved with the window. If I close the
window and reopen it shows always this big white border.
- If I have the scaling factor 1.5 then the close button graphic is ok but the
border is broken but not as terrible as with scaling factor 1.25
The only workaround I found is to restart unity or use another desktop.
** Affects: unity (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1672206
Title:
After Waking Up from Suspend to RAM the "close button" icon (graphic)
of the window and the border of the window is broken on 4k display
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