On Wed, 2012-11-21 at 22:35 +0100, Peter Huewe wrote: > From: Takashi Iwai <[email protected]> > > Currently i915 driver checks [PCH_]LVDS register bits to decide > whether to set up the dual-link or the single-link mode. This relies > implicitly on that BIOS initializes the register properly at boot. > However, BIOS doesn't initialize it always. When the machine is > booted with the closed lid, BIOS skips the LVDS reg initialization. > This ends up in blank output on a machine with a dual-link LVDS when > you open the lid after the boot. > > This patch adds a workaround for that problem by checking the initial > LVDS register value in VBT. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=37742 > Tested-By: Paulo Zanoni <[email protected]> > Reviewed-by: Rodrigo Vivi <[email protected]> > Reviewed-by: Adam Jackson <[email protected]> > Signed-off-by: Takashi Iwai <[email protected]> > Signed-off-by: Daniel Vetter <[email protected]> > > Cc: <[email protected]> # 3.4.x > Cc: <[email protected]> # 3.2.x [...]
Queued up for 3.2, thanks. Ben. -- Ben Hutchings Never attribute to conspiracy what can adequately be explained by stupidity.
signature.asc
Description: This is a digitally signed message part
