View Full Version : [ubuntu] TV widescreen

June 23rd, 2012, 01:43 AM
Quantal running O.K. on netbook, but 1024x600 is a squint so I hooked up a widescreen TV.

Oof. Systems Settings Displays said unknown display, max 1024x768.

Found this site:

with magic incantations:

xrandr --newmode "1366x768_60.00" 85.25 1366 1440 1576 1784 768 771 781 798 -hsync +vsync
xrandr --addmode VGA1 1366x768_60.00
xrandr --output VGA1 --mode 1366x768_60.00Now all those funny numbers came out of a cvt command (sort of) so look at the site if you're interested.

The Coby TV is a lot sharper than I would have expected, pixel pitch .252 and 6-bit color.

Having fun,


October 8th, 2012, 04:27 PM
Worked a treat for me - thanks Jerry. I have yet to try a reboot to see if settings stick, but if they don't, instructions for getting them to stick are in the linked post.

Update: Settings did not stick consistently.

I created an .xprofile in my home directory with the settings.

Then, I did chmod +x .xprofile. If you don't do this, .xprofile won't be run at login, and you won't be able to do it manually from the terminal either.