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Thread Tools | Display Modes |
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23-01-2011, 11:13 PM | #1 | ||
Join Date: Dec 2009
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Posts: 23
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How to increase the resolution in DOSBox?
I currently play Daggerfall and looked for a way to increase the resolution.
I found this: http://theelderscrolls.wiwiland.net/...erfallSetup_EN I have a 1920x1200 screen resolution, so I changed fullresolution=original to fullresolution=1920x1200. The resolution seems to have changed but in full screen the picture stays in windowed size, the rest of the screen remains black. I put a screenshot in the attachment. In addition, when I change to fullscreen now, DOSBox goes back to windowed mode after about a second, but only when the game runs. Any idea how I can have the 1920x1200 resolution in fullscreen? Thanks. |
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23-01-2011, 11:57 PM | #2 | ||
Join Date: Mar 2006
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No idea why DOSBox should fall back to windowed mode... O_O
You did right with fullresolution, but you also need to change "scaler": anything but the default "surface" value will fix your problem, pick "overlay". Also change "aspect" to "true". Quote:
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24-01-2011, 12:38 AM | #3 | ||
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Quote:
The image stays in the middle with the rest of the screen black, like in the screenshot I've attached to the original post in this thread. Furthermore when I set output=overlay the screen goes back to windowed mode again after ~one second. |
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24-01-2011, 12:52 AM | #4 | ||
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Changing output is a must, because surface is the only one that doesn't support scaling.
The problem about fullscreen going back to windowed is very strange, perhaps the drivers are responsible. Try every possible option for "output" in case one of them works for you. Are you sure 1920x1200 is supported by your hardware? Check the desktop display properties. Also, be aware that if and when this works, you don't really get higher resolution per se (but you do get better scaling). That is, you will see the image as pixelated as originally in an old monitor. This is unless you also change "scaler" to anything but normal2x or normal3x; but this only reduces the pixelation of the edges in exchange for blurring the image, and I can't really recommend it. Obviously, you can't make a high resolution image out of a low resolution one. Playing DOS games isn't about good graphics anyway. Now I gotta go to sleep...
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24-01-2011, 01:14 AM | #5 | ||
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Quote:
Looks like the "going back to windowed mode" problem was caused by the xBox 360 controller I had plugged in an USB port. Still, the picture remains small in the middle of the black full screen. What do I have to do to make the picture expand across the full screen? |
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24-01-2011, 05:51 AM | #6 | ||
Join Date: Oct 2004
Location: Opole, Poland
Posts: 14,276
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Overlay output doesn't support scaling to anything else than multiples of the original resolution. Switch to ddraw.
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17-02-2012, 09:53 AM | #7 | ||
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Thanks!
Quote:
I had the exact problem (black screen with little square for game in middle). Your tips did it... I think it was especially changing the display to "overlay", although I have no idea why it got changed or stopped working. All my games were fine before, then suddenly none of them work anymore until I make these small changes. Totally weird, but THANKS!!! |
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25-01-2011, 03:15 AM | #8 | ||
Join Date: Dec 2009
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Thanks, I use ddraw atm and the picture is stretched almost across the whole screen, but only almost. It remains a broad black stripe on each side. What can I do that the whole screen is used, without any black bars?
Edit: Screenshot direct link: http://i55.tinypic.com/mv17c4.jpg Last edited by TheAnyKey; 25-01-2011 at 03:21 AM. |
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25-01-2011, 05:27 AM | #9 | ||
Join Date: Oct 2004
Location: Opole, Poland
Posts: 14,276
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On widescreen monitors, this is as good as it gets. The game uses a 4:3 aspect ratio, like most DOS games, whereas your monitor's aspect ratio is 8:5.
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25-01-2011, 06:24 PM | #10 | ||
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Everybody wants not to have those black stripes. Y U NO like unused area of your monitor?
Quote:
So does it work for you with "ddraw" and not with "overlay", or was it something else? It would be interesting to know. (Dunno, it may make sense. All this is undocumented, but I think those DOSBox options are probably enum values simply forwarded to SDL calls. Judging from the name, overlay might mean writing directly to the video memory. So maybe the result could vary depending on the particular hardware. DirectX on the other hand is an industry standard API and any driver is responsible to produce the same result out of the same call.)
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