HDMI to DVI cable > overscan on monitor
My computer (Zotac Zbox Nano ID62 with IntelHD graphics) has an HDMI out, and the monitor has only a DVI in, so I'm using a HDMI to DVI converter cable to connect them. Part of the image is cut off on the borders, as if the monitor is too small (it is an old Samsung LE27T51B with 1366x768 res).
Since exactly the same has happened with a RaspberryPi too, I figure it's due to this converting of video output. XBMC distros for Raspberry Pi had the ability to fix that in system settings. LMDE is the OS I run on the Zotac, so I'm wondering if there's a utility for fixing that in the OS, do you happen to know any such program (LMDE forums visitors seem to not know)? Otherwise, how would you try to fix it? LMDE thinks the monitor is 7 inches with 1280x720 resolution, and it won't go any higher. The settings for that monitor itself which I can access via its remote only let me choose between 4:3 and 16:9 ratio, but there isn't a way to actually adjust the image size. |
As a shot to nothing, you could possibly fix it in X with
Virtual 1280 720 in the config. That limits the screen size to 1280 x 720. X is not inclined to run a larger resolution, so the question would be asked of your monitor if it can do 1280 x 720. |
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The OSs running on my desktop PC, which is connected to the same monitor via VGA, resolve it at 1360x768. The way I see it, the fix would not be changing the resolution, but size of the picture. It won't help if I see the same picture cut off at the borders with a higher res. |
Your tv should have a 'pc-mode' according to this manual.
That should eliminate overscan. You can do some manipulations with xrandr that may help. But I don't think that can fully compensate for overscan. |
For a monitor you should press the menu button and see if you can change the horizontal and vertical stretch.
You can use xrandr to setup overscan/underscan. First run xrandr and look at the output. Near the bottom there should be some options about underscan or overscan. If not, you're out of luck. For one of my TVs I have to run: Code:
xrandr --output 'LVDS-1' --auto --output 'HDMI-1' --mode 1920x1080 --below 'LVDS-1' --set 'underscan' on --set 'underscan vborder' 16 --set 'underscan hborder' 36 Code:
xrandr --output 'HDMI-1' --mode 1366x768 --set 'underscan' on --set 'underscan vborder' 16 --set 'underscan hborder' 36 |
xrandr says:
Code:
~ $ xrandr I installed XBMC from the LMDE repos. It has a very easy utility in system settings for adjusting the picture size, which fixes my problem - as long as I'm in XBMC. When I shut down XBMC, the screen goes back to overscanning, of course. But, if XBMC can do this, why not another program? It should be just a matter of finding a standalone utility with that functionality, shouldn't it? |
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Right now I don't have a gadget that can convert HDMI or DisplayPort output from the ZBox to a VGA signal - if such a thing even exists, whereas I do have an HDMI>DVI cable. Do DisplayPort>DVI cables exist? |
aaw man, now my Xserver is broken. I used LMDE's Device Driver Manager to try the Vesa gfx driver.
Now X won't start and I only got the command line. I managed to remove the Vesa driver and reinstall the Intel one from the command line, but it seems X still wants to load Vesa. Now I'm stuck. Would anyone know the commands or edits I need to make to at least get a functioning Xserver back? Thanks, Ben |
Use nano or vim to edit '/etc/X11/xorg.conf'. Add or change the following section:
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Section "Device" |
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~ $ xrandr Thanks, Ben |
It won't work because the monitor doesn't support changing the underscan/overscan using xrandr. Usually only TV support this. Try the monitor settings instead.
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Well, then the converter cable somehow interferes. I know a regular HDMI cable works. I've had problems with converter cables.
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