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SOLVED : Strange visual glitches after install

Hi (Sorry for my average English) I've installed Catalina 10.15.7 on a new hardware (below) : I have now very annoying screen glitches : some random horizontal noise lines every 1 to 4 seconds flashing white rects at the bottom of the screen every say 10 to 30s a black screen the screen...
- lucB
- Thread
- Dec 6, 2020
- Replies: 3
- Forum: 10.15 Catalina
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SOLVED / AMD - B450 - Sapphire RX580 in compute mode - BIOS error message and Black screen at boot

EDIT : Sorry didn't find a way to move this post to post installation After NVRAM reset and reinstall, I can now see the desktop but with some strange visual glitches. I closed this one and post in post install. ------------ Hi everyone, I'm trying to install Catalina 10.15.7 on a new...
- lucB
- Thread
- Dec 5, 2020
- Replies: 0
- Forum: 10.15 Catalina
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Hi everyone

Hi everyone. I'm Luc from France. I like making music with computers, mainly guitar, and just jumped in the AMD hackintosh open core thing. (and apologize for the average English). regards
- lucB
- Thread
- Dec 5, 2020
- Replies: 0
- Forum: Member Introductions

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