SDDM Crash on Scroll
Description: Ubuntu 17.10
Release: 17.10
kwin: 5.11.5
sddm: 0.14.0
kernel: Linux 4.13.0-32-generic x86_64
If I scroll quickly or extensively, my session crashes to a black screen resetting to the login dialog for SDDM. I am unsure if this is KWin, Plasma, or SDDM, but I have tested the following scenarios:
* No errors appear in Xorg.0.log, etc. However, I can debug further as necessary.
* Wayland and Xorg show the same behavior when I scroll--crashing after I scroll.
* This occurs whether I scroll in Firefox 58.0.1, Kate, Dolphin noting the lack of specific graphical toolkits relating to this issue.
* If Plasma was the culprit I am supposing it would just restart plasma-desktop rather that lead me back to the login dialog.
* Intel HD 530 graphics (Nvidia modules blacklisted for bbswitch to load on demand), with SNA acceleration. UXA acceleration also showed the same behavior after restarting with change to /etc/X11/
Hoping to fix session crashing on Plasma/SDDM/KWin when scrolling.
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