Display on HDMI-connected TV to large

[Alex Deucher]

On Fri, Feb 19, 2010 at 2:37 PM, Sebastian Beßler
<sebastian at darkmetatron.de> wrote:
> Hello,
>
> recently I changed my dual-head setting from fglrx and old zephod to
> xf86-video-ati, KMS and xrandr.
> Nearly all works great, since KDE 4.4 even that, but the display on my
> TFT-TV is a bit too large on all sides so that it doesn't fit completely
> in. It is only a cm or so on all sides that overlap but it is really
> annoying.

Some TV's enable overscan by default.  Turn off overscan on your tv.
The option might be called "fit" or "exact" or something like that.
The other alternative is to underscan the modeline sent to your
monitor.  Google for "underscan modeline"

Alex

>
> My normal monitor is a 19" Widescreen TFT connected via DVI to old 15 Pin
> VGA connector and runs at 1440x900.
> My 19" TV is connected via HDMI and runs at 1280x720
>
> The same configuration worked perfectly in zaphod mode so that it is
> possible with this hardware. But as zaphod is more then less broken and
> without priority I changed to xrandr.
>
> I have a Radeon 3650HD
>
> xrandr says:
> metatron at Shao ~ $ xrandr
> Screen 0: minimum 320 x 200, current 2720 x 900, maximum 8192 x 8192
> HDMI-0 connected 1280x720+1440+0 (normal left inverted right x axis y
> axis) 708mm x 398mm
>   1280x720       60.0*+   50.0
>   1024x768       60.0
>   800x600        60.3
>   720x576        50.0
>   720x480        59.9
> VGA-0 disconnected (normal left inverted right x axis y axis)
> DIN disconnected (normal left inverted right x axis y axis)
> DVI-0 connected 1440x900+0+0 (normal left inverted right x axis y axis)
> 408mm x 255mm
>   1440x900       59.9*+
>   1280x1024      75.0     60.0
>   1280x960       60.0
>   1152x864       75.0
>   1024x768       75.1     70.1     60.0
>   832x624        74.6
>   800x600        72.2     75.0     60.3     56.2
>   640x480        72.8     75.0     66.7     60.0
>   720x400        70.1
>
> I can't figure it out by myself and google shows nothing that helps.
>
> I hope someone here can give me a useful hint.
>
> Greetings
>
> Sebastian
>
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