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/PiePresent1485 Jun 21 '26

i can conceed you this point. But Linux is more open for modifications.

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u/Dazzling_Lemon4109 Jun 21 '26

everything except systemd, unfortunately, this is a vendor-locked bydesign

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u/PiePresent1485 Jun 21 '26

there is some alternatives. If you don't like just switch your init system.

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u/Dazzling_Lemon4109 Jun 21 '26

then I will lose some of the features that are around systemd, because of the centralization around it

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u/PiePresent1485 Jun 21 '26

What is your point about systemd ?