psb_gfx removal

[Alan Cox]

On Thu, 7 Jun 2012 15:53:43 +0200 (CEST)
Jan Engelhardt <jengelh at inai.de> wrote:

> On Tuesday 2012-06-05 18:29, Alan Cox wrote:
> >> 
> >> [Wortmann AG's terra Pad 1051, with a 8086:4102 display chip]
> >
> >0x4102 is an Oaktrail device (GMA600). The driver supports it
> >providing you have the GMA600 option set.
> 
> Thanks for the info. Setting GMA600=y works, as in, it results
> in graphical mode on tty1.
> 
> However, the gma600 driver seems to default to a backlight value of
> "0" in Linux 3.4.1; getting a dark screen after loading gma500_gfx.ko 
> is rather unexpected.

The ACPI and GMA code fall out over the backlight somewhat. I had hoped
to fix it in 3.5-rc but Linus threw out all the ACPI tree changes.

Disable ACPI video in your configuration and see if it behaves
properly. If not then it will need chasing down in more detail.

Alan