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Re: 3d Acceleration Radeon 7500M - Tuxracer runs really slow!



Hi Jochen,

installed Kxconfig,

ran it and configured modelines in that, still no joy,

no errors appearing in XF86 log, can ctr+alt change resolutions now, but everything (1024x768, 800x600 etc) but default (1400x1050) is actually to big for the screen, which doesn't make sense!


jochen issing wrote:
Hi Ben,

On Fri, May 02, 2003 at 10:02:03AM +1000, ben wrote:

stage 2..

I have dri working now (sort of?) and drm installed.
being a bit of a noob at x (& linux in general) I just copied my modeline section from 1400x1050 and duplicated it for all resolutions.



that's not too good without modifying it and adapt it to the new
resolution.


now when I run Tuxracer I just get a blue screen, with sound.
no actual graphics.

the modelines Read along the lines of:

# 800x600 @ 60Hz, 65.8 kHz hsync
      Modeline "800x600"  129   1400 1464 1656 1960
                            1050 1051 1054 1100 +HSync +VSync


That's the point. The Modeline specifies the pixel-points of the end of
screen, sync begin and end and so on. You have to recalculate the
Modelines in this way:

800x600
  Modeline "800x600" 129 800 864 1056 1360
                         600 601 604 650 +HSync +VSync

I don't think, that this will work out of the Box, but you should
understand for what the Modelines actually were specified. However, I
cannot switch between different resolutions interactively, too, but I
tried kxconfig, a module for the kontrolcenter (I assume using KDE),
which gave me reasonable Modelines.

HTH,

jochen


however I really don't know what all that means..
I'ld better do some more reading, could I maybe have my refresh rates wonky?

Cheers,

Ben.


Joao Pedro Clemente wrote:

Oh, and I'm suposing you have kernel support for DRM, etc... Please check
that too..




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