Renze Nicolai has uploaded this change for review. ( https://review.coreboot.org/23040
Change subject: mainboard/t530: Add "Hybrid Graphics" mode ......................................................................
mainboard/t530: Add "Hybrid Graphics" mode
This patch adds a mode to the nvram settings that enables the discrete graphics card without switching the LVDS panel to the Nvidia card. This allows using the Nvidia GPU and the Intel GPU at the same time. Tested with Nouveau and "DRI_PRIME=1".
It depends on patches 20547, 20548 and 22337 which allow Nouveau to load the VGA option ROM using an ACPI interface.
The VGAROM needs to be added manually using cbfstool for now.
Change-Id: I1d65a905306bed80d14e10a53dcdf3eb3ff86986 Signed-off-by: Renze Nicolai renze@rnplus.nl --- M src/mainboard/lenovo/t530/cmos.layout 1 file changed, 1 insertion(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/40/23040/1
diff --git a/src/mainboard/lenovo/t530/cmos.layout b/src/mainboard/lenovo/t530/cmos.layout index 8304d52..72fd7fb 100644 --- a/src/mainboard/lenovo/t530/cmos.layout +++ b/src/mainboard/lenovo/t530/cmos.layout @@ -129,6 +129,7 @@ 11 6 224M 12 0 Integrated Only 12 1 Discrete Only +12 2 Hybrid Graphics 13 0 Disable 13 1 AC and battery 13 2 AC only