hwscale only works with overlay/opengl output methods

under linux fullfixed=true must be accompied by the width and the height of your screen as dosbox has no detection routines for them under linux.

and offcource fullscreen must be set to true as well.

Well, the scaling option does indeed work with opengl and overlay, but CPU usage goes off the chart even if I reduce the CPU cycles to 500.

I'm still not getting a full-screen image after turning on fullscreen and fullfixed and setting the fullwidth and fullheight to my screen's dimensions. The image stays at a small size in the middle of an otherwise blank screen.

I get the same result if I try a fullwidth and fullheight with dimesions other than my screen's native resolution (e.g., 800x600 or 1280x800).

are other programs capable of switching to fullscreen ?

try alt-enter when in dosbox.

Alt-Enter will toggle between window and fullscreen, but the image in fullscreen is still as I've described before.

fullfixed has the effect you describe. Dosbox will not scale it.
(as far as I know)

Hmm, all right. When I use DosBox in Windows and go to fullscreen, whether by hitting alt-enter or specifying it in the conf, the emulated image occupies the entire screen. What I'd like to know is if this can be done in the Linux version.

Works for me. My fullfixed is set to false, output is on surface, and hwscale is set at 1.00.
I run Redhat 9 with a Radeon 7000 and use DRI drivers and run at about 800x600. Haven't tried any other resoultions.