[ltp] intel GM965 rescales 1024 to 1280 on LVDS on a T61

[Marius Gedminas]

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On Thu, May 08, 2008 at 09:30:05PM +0300, Marius Gedminas wrote:
> On Thu, May 08, 2008 at 10:27:58AM +0200, U Kuehn wrote:
> > There should be a BIOS option for the display called "HW expansion".
>=20
> Do you have an Intel-based ThinkPad with a BIOS that has this option?
> My T61 doesn't.  (Although I haven't upgraded to the latest 2.11 version
> of the BIOS -- but the changelog on lenovo.com doesn't mention anything
> related to Intel video or screen expansion.)
>=20
> > Maybe you have it turned on? Do you get the very initial screens of
> > GRUB/LILO and the linux kernel before a framebuffer kicks in in full
> > size, or only a small middle portion of the screen? The former would
> > hint to enabled hw expansion...
>=20
> Yes, it's hw expansion, and it works in text mode as well (which is IMGO
> extremely stupid for a widescreen laptop, but there you have it).

I've just been told on the xorg@freedesktop.org mailing list that if you
have the 'intel' driver for X (at least version 2.3) you can toggle
panel expansion with xrandr:

  xrandr --output LVDS --set PANEL_FITTING center
  xrandr --output LVDS --set PANEL_FITTING full_aspect
  xrandr --output LVDS --set PANEL_FITTING full

I haven't tested that since Ubuntu comes with intel driver v2.2.1.

(Google gives me the checkin that added this feature on Mar 26, 2008 --
it's pretty recent.)

Marius Gedminas
--=20
The irony is that Bill Gates claims to be making a stable operating
system and Linus Torvalds claims to be trying to take over the
world.
		-- seen on the net

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