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#1 2012-12-28 12:24:41

kometonja
Member
Registered: 2012-12-28
Posts: 10

intel/amd dualhead issue (acpi issue?)

hello.
i'm using arch linux but had this issue with other distributions as well on hp pavilion g6 laptop with intel and radeon graphic card.
when i modify xorg.conf file to enable dualhead (such as VGA1 leftOf LVDS) using intel driver it works fine except LVDS ("laptop monitor") has brigntness set to 0 and is blank. using media keys i can increase it and it's fine. when waking up from screensaver it's blank again..
1) is this graphic driver or acpi issue? can i disable it somehow or change default value of brightness? i've tried video=SVIDEO-1:d kernel parameters and some other hints from arch wiki, doesn't work for me.
2) this is irrelevant but still weird.. when i make VGA1 (external monitor) primary and LVDS rightOf it, after boot I have to modify xorg.conf and change VGA1 to VGA2 for dual head to work. After restart its VGA1 again and so on...

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