Upgrade to Debian 10 didn't end up well although all packages upgraded smoothly.
The problem: X server doesn't start anymore with Debian 10's default
kernel version 4.19. The X server starts and works nicely with kernel
4.9 which I have still installed from Debian 9.
What happens: Even a simple X session like "startx /usr/bin/xterm" just
freezes. After freeze if I change to different virtual console and back
with Ctrl+Alt+Fn the X session crashes and the Xorg.0.log is appended
with this:
----------
[ 1892.784] (EE) modeset(0): failed to set mode: Invalid argument
[ 1892.784] (EE)
Fatal server error:
[ 1892.784] (EE) EnterVT failed for screen 0
[ 1892.784] (EE)
[ 1892.784] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 1892.784] (EE) Please also check the log file at
"/home/dtw/.local/share/xorg/Xorg.0.log" for additional information.
[ 1892.784] (EE)
[ 1892.784] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 1892.842] (EE) Server terminated with error (1). Closing log file.
----------
The computer has Intel graphics adapter which uses i915 kernel module.
"journalctl -f" says nothing: nothing is added to system logs.
I reported the issue here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931528
The bug report has the full Xorg.0.log as an attachment.
Do you have ideas about how to get X server working again or help making
the bug report better?
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