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authorLeah Rowe <info@minifree.org>2024-04-06 12:19:56 +0100
committerNico Huber <nico.h@gmx.de>2024-04-13 11:14:31 +0000
commit1a7ffa8521e0cee15a689176b29048e1c2bfcbcf (patch)
treebbeb6afcc0241dcdbe06f73b5f279caabbaad931 /src/mainboard/lenovo/haswell/Makefile.mk
parent316d687d3aba76112091ebbb369d2dd982d7e8cf (diff)
lenovo/haswell: enable ONBOARD_VGA_IS_PRIMARY
Haswell ThinkPads have Nvidia Optimus wired in on some models. With recent coreboot changes, legacy VGA decode is now disabled on the iGPU, and the iGPU itself is disabled, when a dGPU is present. This is a problem on Optimus laptops, because it means that the Intel GPU would be effectively disabled, when it is the one that has to handle the framebuffer. On these boards, you can enable ONBOARD_VGA_IS_PRIMARY so that coreboot does not disable the iGPU. This is because on Optimus laptops, the Nvidia GPU is only used for offloaded rendering. Enable ONBOARD_VGA_IS_PRIMARY by default on these boards. Change-Id: I8f1e0ca2861d1cc9a9ad41e7c9257aeca1a62a31 Signed-off-by: Leah Rowe <info@minifree.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/81645 Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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