Francis Rowe (info@gluglug.org.uk) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/7979
-gerrit
commit f39f5d6928824e59d1980a4d67fec0fad7825929 Author: Francis Rowe info@gluglug.org.uk Date: Mon Dec 29 21:02:48 2014 +0000
gm45: fix uneven backlight (native gfx init)
When setting brightness levels low, backlight becomes uneven. This patch fixes that.
Tested on X200.
Change-Id: Ie71bf696ba4431ab25076f92dd5fdc9fdc167b09 Signed-off-by: Francis Rowe info@gluglug.org.uk --- src/northbridge/intel/gm45/acpi/igd.asl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/northbridge/intel/gm45/acpi/igd.asl b/src/northbridge/intel/gm45/acpi/igd.asl index 199765b..6f0eb8c 100644 --- a/src/northbridge/intel/gm45/acpi/igd.asl +++ b/src/northbridge/intel/gm45/acpi/igd.asl @@ -206,14 +206,14 @@ Device (GFX0)
Method (_BCM, 1, NotSerialized) { - Store (ShiftLeft (Arg0, 4), ^^BCLV) + Store (ShiftLeft (Arg0, 8), ^^BCLV) Store (0x80000000, ^^CR1) - Store (0x0610, ^^BCLM) + Store (ShiftLeft (0x61, 8), ^^BCLM) } Method (_BQC, 0, NotSerialized) { Store (^^BCLV, Local0) - ShiftRight (Local0, 4, Local0) + ShiftRight (Local0, 8, Local0) Return (Local0) }