Problems with DVI+LCD on IBM ThinkPad T42p (ATI Technologies Inc M10 NT [FireGL Mobility T2])

[Alex Deucher]

On 7/26/05, Martin Knoblauch <spamtrap at knobisoft.de> wrote:
> 
> 
> --- Alex Deucher <alexdeucher at gmail.com> wrote:
> 
> > On 7/26/05, Martin Knoblauch <spamtrap at knobisoft.de> wrote:
> > > Hi,
> > >
> > >
> > >  Any ideas? I am using xorg-6.8.2 as shipped by FC3 and the
> > "radeon"
> > > driver". The (I belive) relevant part of the xorg.conf is:
> > >
> > > Section "Device"
> > >         Identifier      "RADEON"
> > >         Driver          "radeon"
> > >         Option  "BusType"       "AGP"
> > > #       Option  "MonitorLayout" "TDMS,AUTO"
> > >         Option  "MonitorLayout" "TMDS,LVDS"
> > > EndSection
> > >
> > >  If I use the commented out MonitorLayout, the notebook LCD comes
> > up
> > > clean, but the DVI display stays dark.
> > >
> > >  I also tried the proprietary "fglrx" driver, but that is not
> > working
> > > at all with the DVI display.
> > >
> >
> > the xorg radeon driver doesn't support similateous internal TMDS and
> > LVDS at the same time yet.  I've been working on supporting that, but
> 
>  hmm. In my case it isn't really a question of "simultaneous"
> operation. I have the artifact in the overlay plane when the LVDS is
> alone.

well, the problem is the X server cannot be reconfigured on the fly.
when you undock with X running, it's still configured for the TMDS
port rather than LVDS.  You need to restart X when you undock so the
proper output can be configured.

> 
> > I've been real busy catching up on things since I got back from
> > vacation, so I haven't had time to work on it lately:
> > https://bugs.freedesktop.org/show_bug.cgi?id=3621
> >
> 
>  I looked at the description an it looks promising. At least worth a
> try. Newbee question: how to build the radeon driver alone?

Not really possible at the moment, although you can rebuild X and then
just copy the rebuilt radeon driver into your current xorg
installation.

> 
> > I've got some new stuff in the pipeline though, so I should have an
> > updated patch relatively soon.
> >
> 
>  Cool.
> 
> Cheers
> Martin
> 
> ------------------------------------------------------
> Martin Knoblauch
> email: k n o b i AT knobisoft DOT de
> www:   http://www.knobisoft.de
>