Hi Mark, On Fri, Oct 2, 2009 at 8:49 AM, Mark Mwangi <mwangy@gmail.com> wrote:
Hi Mwangi, am using gnome so grandr works for me. . . here is my xrandar output. . .
mwangi@mwangi-desktop:~$ xrandr Screen 0: minimum 320 x 240, current 800 x 600, maximum 800 x 600 default connected 800x600+0+0 0mm x 0mm 800x600 60.0* 56.0 640x480 60.0 400x300 60.0 56.0 320x240 60.0
So your screen is "default". And this screen has a max resolution of 800x600. What you need to do is use cvt to generate a valid mode, import this mode into xrandr for 'default' and activate it. An example: My vbox instance has the screen VBOX1 -- Get the current modes -- lmwangi@hyperion:~$xrandr Screen 0: minimum 64 x 64, current 800 x 600, maximum 32000 x 32000 VBOX1 connected 800x600+0+0 0mm x 0mm 800x600 60.0 + 60.3* 640x480 59.9 -- Generate a new mode -- lmwangi@hyperion:~$cvt 1280 800 # 1280x800 59.81 Hz (CVT 1.02MA) hsync: 49.70 kHz; pclk: 83.50 MHz Modeline "1280x800_60.00" 83.50 1280 1352 1480 1680 800 803 809 831 -hsync +vsync -- Add it to xrandr -- lmwangi@hyperion:~$xrandr --newmode "1280x800_60.00" 83.50 1280 1352 1480 1680 800 803 809 831 -hsync +vsync lmwangi@hyperion:~$xrandr Screen 0: minimum 64 x 64, current 800 x 600, maximum 32000 x 32000 VBOX1 connected 800x600+0+0 0mm x 0mm 800x600 60.0 + 60.3* 640x480 59.9 1280x800_60.00 (0x4a) 83.5MHz h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 49.7KHz v: height 800 start 803 end 809 total 831 clock 59.8Hz -- Add it to the screen -- lmwangi@hyperion:~$xrandr --addmode VBOX1 1280x800_60.00 -- Activate -- regards, laban