Same here on Lenovo Thinkpad T490 with i915 and external monitor
attached via Thunderbolt. External monitor goes black several times a
day.
Only when I move the mouse cursor into the lower 10% part of the monitor
screen. It stays black if I don't move the mouse. Once I move the mouse,
the screen c
Same as Bas Janssen here, Dell XPS 13 with i915. No devices attached. It
is a fresh install, not an upgrade.
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https://bugs.launchpad.net/bugs/1971428
Title:
CPU pipe A FIFO underrun
To
Same here on my Dell XPS 13 with i915 graphics. Occasionally it gets
worse: my screen goes completely black and won't come back on unless I
switch to an external monitor and back, or reboot.
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