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Comment by homebrewer | Hacker News Reader

It's easy to check (unless the kernel was compiled without config in procfs, which it probably wasn't):

  $ zgrep CONFIG_DRM_PANIC_SCREEN_QR_CODE /proc/config.gz
  CONFIG_DRM_PANIC_SCREEN_QR_CODE=y

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There are mainstream distros that don't have config.gz. Fedora is one of them. But it keeps a copy of it's config next to the kernel. If you don't have /proc/config.gz try this:

grep CONFIG_DRM_PANIC_SCREEN_QR_CODE /boot/config-$(uname -r)

(Fedora is enabling the DRM panic screen QR code)

Thanks, also seems enabled by default in NixOS.

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