From: Alan Cox <alan@linux.intel.com>
To: Jan Engelhardt <jengelh@inai.de>
Cc: dri-devel@lists.freedesktop.org
Subject: Re: psb_gfx removal
Date: Thu, 7 Jun 2012 16:18:29 +0100 [thread overview]
Message-ID: <20120607161829.4f6fb048@bob.linux.org.uk> (raw)
In-Reply-To: <alpine.LNX.2.01.1206071547170.21171@frira.zrqbmnf.qr>
On Thu, 7 Jun 2012 15:53:43 +0200 (CEST)
Jan Engelhardt <jengelh@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
next prev parent reply other threads:[~2012-06-07 15:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-05 12:51 psb_gfx removal Jan Engelhardt
2012-06-05 16:29 ` Alan Cox
2012-06-07 13:53 ` Jan Engelhardt
2012-06-07 15:18 ` Alan Cox [this message]
[not found] ` <alpine.LNX.2.01.1206051500220.9399@frira.zrqbmnf.qr>
2012-06-06 5:12 ` Greg KH
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