*** This bug is a duplicate of bug 1550779 ***
https://bugs.launchpad.net/bugs/1550779
The log messages you mention are covered by bug 1550779. So that might
be the main issue here. But just in case you're experiencing a crash as
well, please try these steps:
https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment
** This bug has been marked a duplicate of bug 1550779
Black screen flickering and [drm:intel_cpu_fifo_underrun_irq_handler [i915]]
*ERROR* CPU pipe A FIFO underrun
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https://bugs.launchpad.net/bugs/1903551
Title:
Xorg freeze
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