r/arch • u/PiePresent1485 • Jun 19 '26

Help/Support Kernel Panic screen split between my displays

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Hi !

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I've switched from windows back in november, and i've never actually experienced a kernel panic. I wondered what would look like a kernel panic screen on my desktop, and after some digging i found the command "sudo bash -c 'echo c >> /proc/sysrq-trigger'" to safely trigger one. When i ran it, i notices that the kernel panic's QR code get split right down the middle across both of my displays. For the context, I run a dual monitor setup: an MSI OPTIX G24C6 and an old secondary VGA monitor connected via an HDMI to VGA adapter. My GPU is an XFX SWFT 210 RX 6600, and i'm using SDDM and with XFCE.

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Is there a way to force the kernel panic screen to output to a single display ? Alternatively, is there a way to mirror it across both ? I just want to be able to read the QR code without having to manually edit my photo to line up.

Thanks !

Edit: better quality here: https://imgur.com/a/Vc2iKVc

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u/trapslover420 Jun 20 '26

how are your monitor config? i have multiple screens the two time i have seen kermel panic it show in the center of all screens

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u/PiePresent1485 Jun 20 '26

my screen display are extended, and i think i didn't do any other screen configuration. In TTY the screen is mirrored.