Now that the problem has been identified and it affects normal operation of hardware I ask the ticket be raised to CRITICAL and either fixes in DRM upstream be backported to 18.04 LTS HWE, or the patch undone.
Thanks
Log:
git bisect start
git bisect bad a70cc238a0294ad63dbeb73c69450e8156cf31d8
git bisect good 6791ee82bfa161e17a9f94952c84b2b0aa0829ed
git bisect good d7b1d9a450581a59eeec1f07b1899735063f7b54
git bisect good dd4cf9beceff77431ef18568be7b04357d391052
git bisect good f1c670058149fc6bc7fe59e462abeeefbc3176df
git bisect skip 76d6c1bf805637505abb65b2964565e43f59dc63
git bisect skip 74b95fb8681aebab7b652dd9d6b5f8f30fa5792d
git bisect skip 519d5c524073ab2bc51fc81a1dce4ca45017029a
git bisect bad 548b3e311d63d6bc87e3fbb70adc9fcb5fce4083
git bisect bad addad368a3a0d07f1fee652589750a9d51c26d5b
git bisect bad 1a3962a990cdc9be7b039c843de8e7f028b3cc68
git bisect bad 6ad2b975986441870a9a67051f9571b5c09c2569
[BISECTED], FOUND
After bisecting, I found the troublesome commit:
drm/amdgpu: fix gfx hang during suspend with video playback (v2)
https:/ /kernel. ubuntu. com/git/ ubuntu/ ubuntu- bionic. git/commit/ ?id=6ad2b975986 441870a9a67051f 9571b5c09c2569
This problem is known and already has a bugfix in upstream:
https:/ /gitlab. freedesktop. org/drm/ amd/-/issues/ 1094
Now that the problem has been identified and it affects normal operation of hardware I ask the ticket be raised to CRITICAL and either fixes in DRM upstream be backported to 18.04 LTS HWE, or the patch undone.
Thanks
Log:
git bisect start 63dbeb73c69450e 8156cf31d8 17a9f94952c84b2 b0aa0829ed 9eeec1f07b18997 35063f7b54 31ef18568be7b04 357d391052 bc7fe59e462abee efbc3176df 05abb65b2964565 e43f59dc63 b7b652dd9d6b5f8 f30fa5792d bc51fc81a1dce4c a45017029a c87e3fbb70adc9f cb5fce4083 f1fee652589750a 9d51c26d5b e7b039c843de8e7 f028b3cc68 70a9a67051f9571 b5c09c2569
git bisect bad a70cc238a0294ad
git bisect good 6791ee82bfa161e
git bisect good d7b1d9a450581a5
git bisect good dd4cf9beceff774
git bisect good f1c670058149fc6
git bisect skip 76d6c1bf8056375
git bisect skip 74b95fb8681aeba
git bisect skip 519d5c524073ab2
git bisect bad 548b3e311d63d6b
git bisect bad addad368a3a0d07
git bisect bad 1a3962a990cdc9b
git bisect bad 6ad2b9759864418