https://bugs.kde.org/show_bug.cgi?id=366722
Bug ID: 366722
Summary: sddm fails to start after kernel upgrade
Product: neon
Version: unspecified
Platform: Neon Packages
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected], [email protected]
After the kernel upgrade to version 4.4.0-34 sddm fails to start (black
screen/frozen loading screen)
See attached upgrade and sddm log
Selecting an older kernel (4.4.0-31) in grup and sddm starts again.
sddm log (probably most interesting lines):
Aug 13 07:12:39 Blackbox sddm-greeter[2920]: QXcbIntegration: Cannot create
platform OpenGL context, neither GLX nor EGL are enabled
Aug 13 07:12:39 Blackbox sddm-greeter[2920]: Failed to create OpenGL context
for format QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 24,
redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1,
stencilBufferSize 8, samples -1, swapBehavior 2, swapInterval 1, profile 0)
The web recommends adding the sddm user to the video group.
I'll try out if this works.
Reproducible: Always
Steps to Reproduce:
1. Boot with kernel 4.4.0-31 (maybe requires an nvidia card with proprietary
drivers)
Actual Results:
Black screen. Somtimes the last image of the loading screen.
Switching to tty1 works.
Expected Results:
A login screen.
System:
KDE Neon User Editon
Nvidia Driver: 361.42
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