Why can't I run lower resolutions than 600x480??

[kuber]

I would like to be able to switch to a 320x200 resolution but when I add it to my xf86config file I can't select it in X (with ctrl+alt++/-). Any suggestions why or how to get running at low resolutions?

[Tyr-7BE]

Are you using the right colour depth? There are resolutions for different colour depths if you look in your config file. Best to add that res to all of them. Also make sure it's the right file. X 4.0.x uses XF86Config-4 instead of XF86Config. I've never heard of X running at those kinds of resolutions before, but good luck!

[mandreko]

um, why would you want to run in such a resolution?

[kuber]

I would like to run at 320x200 because that is what most emulated games on XMAME run at. It looks a hell of a lot better at lower resolution than if I just expandeed the window-and runs faster....

[kuber]

Well, I can't get a single resolution below 680x400 at any color depth... I would think 320x200 would be no problem, since xf86ocnfig gives it as an option....
Argh...

[The Whizzard]

I don't know if you could run purely at 320x200. But you should be able to have the screen show 320x200 with a virtual desk top of your default resolution. Look in your config to see if you have your virtual desktop enabled.

[kuber]

I used "virtual 340 220" and couldn't get x to start... Virtual 680 400 works, but nothing lower....

[kuber]

BTW, according to documentation I should be able to run anything which is a multiple of 8 with a virtual screen....

WTF?

[kuber]

Ok... I don't think I really understand what is meant by virtual... My XF86Config contains:

Subsection "Display"
Depth 24
Modes "320x200" Virtual 1600 1200
ViewPort 0 0
EndSubsection

So what does this mean :confused:
When I boot up it is just like 1600x1200....

[Gaccm]

change your mode to 320x200 and for virtual "virtual 320 200". i would suggest just running xf86config over and only allowing 320x200 rez

[kuber]

Nope... Is what you mean:


Subsection "Display"
Depth 24
Modes "320x200" Virtual 320 200
EndSubsection

?

That didn't work.. (why would it?)

[Chriz]

You have to define a modeline for this resolution. search for "modeline generator" on google. you'll find a website which generates a suitable modeline for your monitor. btw, if you're using the binary nvidia drivers, you have to get 0.95 at least for resolutions below 640x480

[kuber]

Ok.. So I found the modeline I need, it is:

Modeline "320x240@76i" 7.56 320 352 360 392 240 245 247 253
doublescan interlace

I inserted it under the monitor section and then added "320x240@76i" to my mode list. Still no luck. I also tried it w/ Virtual. Still no luck...