[Bug 1960669] [NEW] the display doesn't appear after suspend, i915

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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: libdrm (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
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the display doesn't appear after suspend, i915
https://bugs.launchpad.net/bugs/1960669
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