This is a new attempt to fix the issue with video corruption that can occur in some cases on EFI when all_video is loaded. Previously, the proposed change was to disable building video_bochs and video_cirrus for EFI completely, however there was concern around this approach.
Previous thread: https://lists.gnu.org/archive/html/grub-devel/2025-09/msg00265.html This new approach modifies the 00_header script to default to only load efi_gop and efi_uga for EFI platforms. A new env variable is added to force the old behavior of loading all_video for EFI if desired. There is likely an additional change required on distros that bundle all_video into the signed EFI GRUB image, such as Debian: https://sources.debian.org/src/grub2/2.14~git20250718.0e36779-2/debian/build-efi-images There is some additional analysis from the Qemu team in this thread: https://gitlab.com/qemu-project/qemu/-/issues/2562 This is an issue on some major distros such as Debian on EFI when running under Qemu and potentially other scenarios. There is some discussion on the Debian side in this thread: https://salsa.debian.org/kernel-team/linux/-/merge_requests/1453 This relates to this discussion from grub-devel also: https://lists.gnu.org/archive/html/grub-devel/2025-09/msg00244.html Fixes: https://savannah.gnu.org/bugs/index.php?66200 Changes since v1: - Fix some comments - Change name of env variable - Combine patches into one Andrew Hamilton (1): util/grub.d/00_header.in: Disable loading all_video for EFI docs/grub.texi | 7 +++++++ util/grub-mkconfig.in | 3 ++- util/grub.d/00_header.in | 16 +++++++++++++++- 3 files changed, 24 insertions(+), 2 deletions(-) -- 2.43.0 _______________________________________________ Grub-devel mailing list [email protected] https://lists.gnu.org/mailman/listinfo/grub-devel
