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- Nov 12, 2015
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View media item 190356Graphics glitches in High Sierra.
I have been getting very odd screen artifacts since moving to High Sierra. The bottom 1/4 of the screen is garbled and moving. I actually thought it might be a graphics card issue because it didn't start until the second boot. I now believe it is something in my setup because I was able to boot Linux Mint several times without any video artifacts.
I have a couple notes on this issue. After leaving my computer running overnight, I didn't have any artifacts. After a reboot, they reappeared.
I temporarily fixed the glitches by deleting a bunch of files from EFI>Clover>driversUEFI64. Unfortunately, this led to an unbootable drive. I had to boot from an install disk and copy the files contained in there. At that point, my graphics card was not recognized. It did not load properly. The result was that I only showed 31 MB of available memory, but I didn't have any video glitches. I then ran the latest multibeast for High Sierra to try to fix my graphics. My graphics card was recognized, but the video glitches were back.
I attached my config.plist and a picture of my EFI>Clover>driversUEFI64 files. I'm not sure if I need to upload anything else.
Edit: I noticed that I can temporarily stop the video glitch if I open Clover... but only if I have certain sections open: ACPI, Boot, Devices, Gui, Graphics, or Kernel and Kext Patches.
I have been getting very odd screen artifacts since moving to High Sierra. The bottom 1/4 of the screen is garbled and moving. I actually thought it might be a graphics card issue because it didn't start until the second boot. I now believe it is something in my setup because I was able to boot Linux Mint several times without any video artifacts.
I have a couple notes on this issue. After leaving my computer running overnight, I didn't have any artifacts. After a reboot, they reappeared.
I temporarily fixed the glitches by deleting a bunch of files from EFI>Clover>driversUEFI64. Unfortunately, this led to an unbootable drive. I had to boot from an install disk and copy the files contained in there. At that point, my graphics card was not recognized. It did not load properly. The result was that I only showed 31 MB of available memory, but I didn't have any video glitches. I then ran the latest multibeast for High Sierra to try to fix my graphics. My graphics card was recognized, but the video glitches were back.
I attached my config.plist and a picture of my EFI>Clover>driversUEFI64 files. I'm not sure if I need to upload anything else.
Edit: I noticed that I can temporarily stop the video glitch if I open Clover... but only if I have certain sections open: ACPI, Boot, Devices, Gui, Graphics, or Kernel and Kext Patches.
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