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authorLeah Rowe <leah@libreboot.org>2024-03-02 23:02:52 +0000
committerLeah Rowe <leah@libreboot.org>2024-03-02 23:13:43 +0000
commit665840b2b9b296fe50fe4fa78b4ffda072c1033b (patch)
tree31ff1b19f03fd03eda81ed546f2c3184dd577ed2 /util/autoport/sandybridge.go
parent944cafa2306c1cd519c1599d249ae81b237fdfda (diff)
coreboot/dell9020*_12mb: Disable IOMMU by default
Needed to make graphics cards work. Turn it on if you're using only the Intel GPU. With IOMMU *enabled*, graphics cards do not work reliably at all. The cause still needs to be investigated, but the symptoms are graphical corruption on the screen, and Xorg usually crashes. In some cases (on some cards), TTYs can still be used; the payload can still be used reliably, on a graphics card, but Xorg fails to work properly. This could be a bug in Linux drivers, instead of anything that coreboot does (not yet tested in factory BIOS). Leaving it off by default will ensure reliable operation on all setups, whether an iGPU or dGPU is used. Signed-off-by: Leah Rowe <leah@libreboot.org>
Diffstat (limited to 'util/autoport/sandybridge.go')
0 files changed, 0 insertions, 0 deletions