Ubuntu
xserver-xorg-video-ati package

  1. Bug #277864
  2. Comment #7

Comment 7 for bug 277864

Revision history for this message
Hadmut Danisch (hadmut) wrote : Re: Display scaling for HDMI

Well, I guess I found the main problem:

The LCD TV seems to not be prepared to work as a computer monitor, but to display only Video signals, even on HDMI, so it does not tell the "HDMI sender", what resolutions it has, it tells what resolutions it will accept. The TV keeps scaling the video signal anyway to remove the common black bars, so one problem was that the TV is rescaling the image even when on HDMI.

To get the X11 screen displayed properly it takes two steps:

- force the resolution with xrandr -s 1440x900
- set the TV to 16:9 mode

So there should be a way to enforce a given resolution under Ubuntu.

regards