diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2024-03-16 09:27:58 +0100 |
|---|---|---|
| committer | Elyes Haouas <ehaouas@noos.fr> | 2024-11-17 05:33:49 +0000 |
| commit | df7561552f09c01b739ad65b490c4d7039cb7b6a (patch) | |
| tree | c2fbfc9c51f1b321c4ea0ee754869596eeb79d31 /src | |
| parent | dcf2ef9b212696ee05272b208e418a21e8d48125 (diff) | |
drivers/intel/gma/acpi: Limit OpRegion size
Limit the ACPI OpRegion to cover only MBOX3. This seems to fix
BSOD errors seen on Windows 10/11 as reported at [1].
1: https://ticket.coreboot.org/issues/327
Change-Id: Ia2affa799e5cd84c0a03330e0f78919755f0e8ac
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81295
Reviewed-by: Joel Linn <jl_coreboot@conductive.de>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/drivers/intel/gma/acpi/configure_brightness_levels.asl | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/drivers/intel/gma/acpi/configure_brightness_levels.asl b/src/drivers/intel/gma/acpi/configure_brightness_levels.asl index 3a097e336f..a35ffe3863 100644 --- a/src/drivers/intel/gma/acpi/configure_brightness_levels.asl +++ b/src/drivers/intel/gma/acpi/configure_brightness_levels.asl @@ -10,8 +10,11 @@ Device (BOX3) { Name (_ADR, 0) - - OperationRegion (OPRG, SystemMemory, ASLS, 0x2000) + /* + * Only cover MBOX3 since Windows 10/11 doesn't like + * when the full (MBOX4/MBOX5 as well) OpRegion is covered. + */ + OperationRegion (OPRG, SystemMemory, ASLS, 0x400) Field (OPRG, DWordAcc, NoLock, Preserve) { // OpRegion Header |