Public bug reported:
System: Lenovo T470s
Kernel: 5.4.0-97-generic #110-Ubuntu SMP
After S3 suspend and resuming the external display doesn't work. C-A-F1,
C-A-F7 solves the problem.
The regression appears 2-3 weeks ago after update.
** Affects: ubuntu
Importance: Undecided
Status: New
** Attachment added: "dmesg output just after resuming and doing the c-a-f7
workaround"
https://bugs.launchpad.net/bugs/1960669/+attachment/5560434/+files/dmesg.txt
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https://bugs.launchpad.net/bugs/1960669
Title:
the display doesn't appear after suspend, i915
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