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I have a very strange issue that I find very hard to describe, which also makes it incredibly hard to Google for it...
I'm running Arch on a 2019 Dell XPS 13. On some occasions, the state of the screen reverts. So, when I'm typing in a terminal or browser, characters I just entered will disappear and when I press another key, it reappears again. If I don't press a key, it will alternate between these states for a while. It also happens sometimes when I lock my screen -> it can show the state from before the locking.
I have tried making a screencapture, but it doesn't show on the screen capture (even though it did happen at the time): https://youtu.be/_B4_WjRgV84
A video I made using my phone while typing this message (bit hard to see, not sure if it's Youtube, it looks fine on my phone): https://youtu.be/-HSZhdh6E2Y
I don't always have this issue, nor does it happen outside of Arch, so I'm hoping it's some sort of driver/software issue.
Output of lswh -c video
*-display
description: VGA compatible controller
product: WhiskeyLake-U GT2 [UHD Graphics 620]
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list
configuration: driver=i915 latency=0
resources: irq:159 memory:9b000000-9bffffff memory:50000000-5fffffff ioport:3000(size=64) memory:c0000-dffff
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Remove xf86-video-intel if you have that installed (... and get rid of config files referencing it) would be my first approach.
If it isn't that I could also see DC or PSR issues, try i915.enable_psr=0 and/or i915.enable_dc=0 on your kernel parameters
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Thanks! I have added it to my grub configuration for now and restarted. It hasn't come back now, but I'll keep checking.
The xf86-video-intel package wasn't installed, but the xf86-video-mesa and mesa package were, I believe that's what was recommended for Intel when I setup this system earlier this year.
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Unfortunately, this is still happening after the changes. Could it be related to a driver issue with the mesa packages?
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