|| at Feb 14, 2010 at 1:13 pm
I am running CentOS 5.2 on Acer laptop, I try to display laptop screen
on a LCD TV via VGA cable. It was fine while PC was booting in text
mode, but as soon as I started X Window, the LCD TV has error
"Unsupported signal, adjust your PC out".
How can I adjust or may be regenerate an xorg.conf for the LCD TV
This is not an uncommon problem with flat panel displays, and is hardly
limited to one distribution. Step one is to find out what resolutions,
horizontal and vertical frequencies the internal display can handle.
Step two is to find out what combinations the video chips can generate.
Step three is finding out which combinations the TV can accept. Once you
determine where all three sets overlap, you configure X to use the
mutually acceptable options. You may end up with an unusable lowest
common denominator doing this, so look into any multi-display options
while you are collecting the data.