netlord
June 16th, 2010, 03:09 PM
hi forum
i have an little problem with xrandr.
my mediacenter is attached to an beamer with the optimal resolution of 1280*720
ubuntu 10.04 doesn´t offer me this revolution (on my intel 915 graphis controller).
this means i have to add this resolution to the possible resolutions.
first i used cvt
cvt 1280 720 60
and got this result:
# 1280x720 59.86 Hz (CVT 0.92M9) hsync: 44.77 kHz; pclk: 74.50 MHz
Modeline "1280x720_60.00" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync
then i added this to xrandr
xrandr --verbose --newmode "1280x720" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync
and
xrandr --verbose --addmode VGA1 1280x720
now i can select and use the new resolution - until next reboot.
after an reboot 1280x720 is again not available.
even if i work with sudo - the resolution isn´t there....
what i´m doin wrong?
thanks
netlord
i have an little problem with xrandr.
my mediacenter is attached to an beamer with the optimal resolution of 1280*720
ubuntu 10.04 doesn´t offer me this revolution (on my intel 915 graphis controller).
this means i have to add this resolution to the possible resolutions.
first i used cvt
cvt 1280 720 60
and got this result:
# 1280x720 59.86 Hz (CVT 0.92M9) hsync: 44.77 kHz; pclk: 74.50 MHz
Modeline "1280x720_60.00" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync
then i added this to xrandr
xrandr --verbose --newmode "1280x720" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync
and
xrandr --verbose --addmode VGA1 1280x720
now i can select and use the new resolution - until next reboot.
after an reboot 1280x720 is again not available.
even if i work with sudo - the resolution isn´t there....
what i´m doin wrong?
thanks
netlord