diff options
| -rw-r--r-- | src/drivers/intel/gma/acpi/configure_brightness_levels.asl | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/drivers/intel/gma/acpi/configure_brightness_levels.asl b/src/drivers/intel/gma/acpi/configure_brightness_levels.asl index dfd878cb26..23637b0612 100644 --- a/src/drivers/intel/gma/acpi/configure_brightness_levels.asl +++ b/src/drivers/intel/gma/acpi/configure_brightness_levels.asl @@ -55,7 +55,7 @@ * * Driver not loaded or not ready * * Driver reported an error during ASLE IRQ */ - Method (XBCM, 1, NotSerialized) + Method (XBCM, 1, Serialized) { If (LEqual(ASLS, Zero)) { @@ -89,9 +89,14 @@ While (LGreater(Local0, Zero)) { Sleep (1) - If (LEqual(And(ShiftRight(ASLC, 12), 0x3), Zero)) - { - Return (Zero) + If (LEqual (And (ASLC, 0x2), 0)) { + /* Request has been processed, check status: */ + And (ShiftRight (ASLC, 12), 0x3, Local1) + If (LEqual (Local1, 0)) { + Return (Zero) + } Else { + Return (Ones) + } } Decrement (Local0) } |