Ubuntu uses the cvt command to generate the screen resolution and refresh rate of xorg. conf to generate 1024x768. Refresh 75Hzluther @ gliethttp :~ $ Cvt102476875 #1024x76874.90Hz (CVT0.79M3) hsync: 60.29 kHz; pclk: 82.00 MHzModeline "1024x768_75.00" 82.00 & n
Ubuntu uses the cvt command to generate the screen resolution and refresh rate under xorg. conf.
Generate 1024x768 refresh 75Hz
Luther @ gliethttp :~ $ Cvt 1024 768 75
#1024x768 74.90Hz (CVT 0.79M3) hsync: 60.29 kHz; pclk: 82.00 MHz
Modeline "1024x768_75.00" 82.00 1024 1088 1192 1360 768 771-hsync + vsync
Generate 1280x600 refresh 75Hz
Luther @ gliethttp :~ $ Cvt 1280 600 75
#1280x600 74.76Hz (CVT) hsync: 47.03 kHz; pclk: 78.25 MHz
Modeline "1280x600_75.00" 78.25 1280 1344 1472 1664 600 603 613-hsync + vsync
Set screen resolution
Luther @ gliethttp :~ $ Sudo cp/etc/X11/xorg. conf/etc/X11/xorg. conf. raw
Luther @ gliethttp :~ $ Sudo vim/etc/X11/xorg. conf
Section "Monitor"
Identifier "Configured Monitor"
Modeline "1024x768_75.00" 82.00 1024 1088 1192 1360 768 771-hsync + vsync
Modeline "1280x600_75.00" 78.25 1280 1344 1472 1664 600 603 613-hsync + vsync
Option "PreferredMode" "1024x768_75.00"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection
Section "Device"
Identifier "Configured Video Device"
EndSection