[ltp] DVI problem again

Alex Deucher linux-thinkpad@linux-thinkpad.org
Wed, 16 Nov 2005 09:43:47 -0500


On 11/15/05, Martin H=F6fling <martin.hoefling@gmx.de> wrote:
> Am Dienstag, 15. November 2005 19:28 schrieb Alex Deucher:
>
> > try adjusting the "displaypriority" option (see the radeon man page).
> > what radeon do you have again?  if it's an rv280 (9200), you might tr
> OK, I'll check this out. I think i tried it already with different settin=
gs
> but I'm not sure anymore.
>
> Chipset is a
> ATI Technologies Inc Radeon Mobility M7 LW [Radeon Mobility 7500]
>

it's an RV200, so the tmds table should be correct.

> Can the
>         Option          "BIOSHotkeys"   "true"
> cause troubles?
>

shouldn't matter.

> > adjusting the TMDS tables in radeon_bios.c (I can explain how).
> > Another thing you might want to try is adjusting the modeline to use a
> > lower refresh or reduced blanking intervals.  you will however need to
> > comment out some code in the radeon driver since it currently does not
> > allow you to specify your own modelines for TMDS output.  See bug
> > 2859:
> > https://bugs.freedesktop.org/show_bug.cgi?id=3D2859
>
> OK, this means that the modeline i specify is only put out by the LVDT? C=
an I
> damage my internal LCD by this? I'll setup a second xorg on my desktop to
> test and play around.
>

right now the digital outputs in the radeon driver (LVDS and TMDS) do
not allow user modelines to prevent users from damaging their panels,
however, in some cases, it's advantageous to override the driver's
mode as per the bug I mentioned above.

Alex

> Martin
> --
> Man kann die Relativit=E4tstheorie auf vieles anwenden. Auf das Usenet
> auch, aber dann sind die Ergebnisse f=FCrchterlich falsch.
> (Nico Hoffmann in dnq)
>
>
>