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SNix

Member

Registered: 2010-07-25

Posts: 6

[SOLVED] Radeon, black border (doesn't fill entire screen)

Updated yesterday. Now I have a black border of unused screen space along the edges of my monitor. It's an AMD system using the integrated card (785G (RS880, Radeon HD 4200)) and it's connected to a TV. I've tried DVI to HDMI as well as HDMI to HDMI, both with the same result. The KDE settings say that it's displaying 1920x1080@60Hz and so does the TV. I'm using the radeon driver as is, no xorg.conf or anything. I've tried searching but so far I've only found stuff related to overscan with the catalyst driver. I'm a bit of a n00b so please be patient if I ask stupid stuff

Does anyone have any ideas?

Last edited by SNix (2010-12-05 13:47:51)

Regin

Member

Registered: 2010-12-05

Posts: 1

Re: [SOLVED] Radeon, black border (doesn't fill entire screen)

Hi,
got the same prob. I found this:

"It's the new "underscan" code added recently to deal with cases where an HDMI-attached TV has overscan set so users can't see the menus at boot. There's a RANDR mechanism to turn it off" -> http://www.phoronix.com/forums/showthread.php?t=25129

Try: xrandr --output HDMI-0 --set underscan off
(set Output to used one)

SNix

Member

Registered: 2010-07-25

Posts: 6

Re: [SOLVED] Radeon, black border (doesn't fill entire screen)

Thanks! That worked perfectly!

menollo

Member

Registered: 2010-05-21

Posts: 5

Re: [SOLVED] Radeon, black border (doesn't fill entire screen)

Thanks a lot!

jaydoc

Member

From: Chennai/Birmingham,AL

Registered: 2008-12-30

Posts: 89

Re: [SOLVED] Radeon, black border (doesn't fill entire screen)

Thanks a lot people. That helped me too.

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It takes a very unusual mind to undertake the analysis of the obvious - A N Whitehead