change resolution

hoseini@hoseini-HP:~$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 175, current 1366 x 768, maximum 1366 x 768
default connected 1366x768+0+0 0mm x 0mm
1366x768 50.0*
1024x768 51.0 52.0
960x540 53.0
840x525 54.0
832x624 55.0
800x600 56.0 57.0 58.0 59.0 60.0
800x512 61.0
720x450 62.0
720x400 63.0
700x525 64.0
680x384 65.0 66.0
640x512 67.0 68.0
640x480 69.0 70.0 71.0 72.0 73.0
640x400 74.0
640x350 75.0
576x432 76.0 77.0 78.0 79.0 80.0 81.0
512x384 82.0 83.0 84.0 85.0 86.0
416x312 87.0
400x300 88.0 89.0 90.0 91.0 92.0
360x200 93.0
320x240 94.0 95.0 96.0 97.0
320x200 98.0
320x175 99.0
hoseini@hoseini-HP:~$
I dont know what is VGA1 replacement.

27 Jan 11

that is an interesting output, what I got from xrandr without arguments is:

matt:~$xrandr 

Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192

VGA1 disconnected (normal left inverted right x axis y axis)

LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm

   1366x768       60.0*+

   1024x768       60.0  

   800x600        60.3     56.2  

   640x480        59.9  

HDMI1 disconnected (normal left inverted right x axis y axis)

DP1 disconnected (normal left inverted right x axis y axis)

DP2 disconnected (normal left inverted right x axis y axis)

TV1 disconnected (normal left inverted right x axis y axis)

in my case LVDS1 is my laptop monitor. I am thinking that you have a single connection, which I have not dealt with before.

Have you tried running "xrandr --size 1024x768" to see if it will automatically push to your default display?

28 Jan 11

thanks.I use this command and work for me. (xrandr --size 1024x76)
But I want to khow that there is any command for changing resolution.

29 Jan 11

the xrandr command is used to change resolution via the command line. Can you please explain exactly what else you are looking to accomplish?

01 Feb 11

I mean I can change resolution just with these two commands or no we have more commands.

01 Feb 11

I do not know of another cli based command that changes the x11 display properties, however xrandr has plenty of options which you can combine to get your desired video configuration. you can view the manual page at http://www.manpagez.com/man/1/xrandr/ to review the other options.

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