Re: [Linux-fbdev-users] matroxfb: screen messes up after so

[Jonas M. <jo...@fr...>]

On 08/06/2004 Petr Vandrovec wrote:
> I think that it is too drastic if you switched to fbdev driver. mga driver
> with DRI disabled will be much faster.

ah, good to know. so fbdev driver should only be used for old cards
without good xfree86 support like vesa?

> > yea, then my current configuration should work. Is DRI support a
> > recommented feature for better performance/lookout/...?
> 
> DRI is mainly for 3D performance.

so i'm not able to run software with 3D usage like tuxracer ,what I
didn't manage to do anyway since my system simply freezes at running
tuxracer 0.61, and all these nice xmms visualisation plugins that
freezed my system too a couple of times?

By the way, why did they freeze the system? doesn't this happen any
longer without dri support, maybe in favour of just printing an error
message?

> As helptext says, if you have G100, G200 or G400, you can toss a coin. If you
> have ~8KB free memory, or if you plan upgrade to G450/G550, select G100-G550
> driver. If you have G400, and you are ABSOLUTELY sure that you'll rebuild
> your kernel with G450/G550 support BEFORE plugging G450 into the box,
> you can select G100-G400 choice, but I recommend it only for embeded box
> where you do not plan any upgrade. (Main problem is that G400 and G450
> use same PCI device ID while they are completely different - G400 driver
> will drive G450 as G400 - and so very bad things happen... hopefully
> your monitor switches itself off when driven with 300Hz vertical sync)

wow, thanks for great information!


apart from all this inferesting stuff, my monitor starts to switch
mode(?) or at least horizontal size, what means it sometimes starts to
jump from normal view to another mode(?) or anything. anyway: the
vertical size of screen stays like it was but the horizontal size of
screen switchs, and thus left and right border of screen are not seen
any longer but cutted by the hardware-border of my monitor.

after some time of switching monitor stays in one of both view modes,
but randomly jumps to and from from time to time.

any idea what causes these troubles? is it more a software problem, or
is my monitor broken?

bye
 jonas