I didn't think that Ubuntu's SimpleScreenRecorder would record the
corruption but it records it just fine:
Here's an HD video of the screen corruption:
https://www.youtube.com/watch?v=6dG_awbM5oo
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Been fiddling with rotating and unrotating displays and when it starts
drawing improperly when rotated, I can unrotate the displays and the
improper drawing/flickering disappears.
Also the improper drawing disappears when I go to mirror mode.
I would imagine most people don't see this bug
And another video of just dragging the display settings window around:
https://www.youtube.com/watch?v=8Eo9hzA51X4
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https://bugs.launchpad.net/bugs/1808626
I've been hesitant to try to reproduce this because my system runs so
well for a long time when this doesn't crop up.
So I rebooted without the video=VGA-1:e parameter and it starts doing
this sort of thing immediately.
I uploaded a video at youtube:
https://www.youtube.com/watch?v=2JOy_ilLAlw
I've been running the same setup and it runs absolutely perfectly if I
boot up with editing the Ubuntu command line in grub and add
video=VGA-1:e
BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic root=UUID= ro
drm_kms_helper.edid_firmware=VGA-1:edid/hannsg.bin video=VGA-1:e
adding the
Here's a listing of my hardware:
$ lscpu
Architecture:x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 2
Core(s) per socket: 2
Socket(s): 1
NUMA node(s):1
Vendor ID:
Public bug reported:
I've got a dual display setup, with one monitor rotated and I've been
running into some weird bugs. The screen will not update properly at
times and there will be areas that will intermittently flicker and show
old areas that should have been overdrawn.
Once it starts doing
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