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

[Martin Knoblauch]

--- Michel Dänzer <michel at daenzer.net> wrote:

> On Tue, 2005-07-26 at 09:46 -0400, Alex Deucher wrote:
> > 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:
> > > > >
> > > > > 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.
> 
> 'TDMS' is not a valid value for Option "MonitorLayout", so the driver
> probably does autodetection, and as Alex explained, it can only use
> either LVDS or TMDS at this point.
>

 Oops. I have to try the correct spelling. Thanks for pointing it out.
 
> 
> > > > >  I also tried the proprietary "fglrx" driver, but that is not
> > > > working
> > > > > at all with the DVI display.
> 
> FWIW, that should be fixed in the upcoming 8.16 release.
>

 At least it would bring HW acceleration.
 
> 
> More explicitly, the Option "MonitorLayout" you're using forces the
> driver to use TMDS, even if the DVI panel isn't connected.
>

 Sure.
 
> BTW, this doesn't have anything to do with 'the overlay plane', the
> internal LVDS panel probably just doesn't like being driven as if it
> were TMDS... The fact that screenshots look fine doesn't tell you
> anything more than that the data is correct in the framebuffer.
>

 OK, if it is not the overlay planes, what else could be "corrupted"?
 
> 
> PS: The radeon driver doesn't understand Option "DesktopSetup", so
> I'm
> not sure how that would make any difference...
> 

 Bad day today. This one is really stupid. I guess I just got confused
by to many config file variants...

Cheers
Martin

------------------------------------------------------
Martin Knoblauch
email: k n o b i AT knobisoft DOT de
www:   http://www.knobisoft.de