Today I was trying to connect my second monitor to my notebook. I have:nvidia graphic card304.43 drivers [support xrandr 1.2]archlinux [up-to-date]awesome wmxrandr 1.3My problem is with bigger resolution than 640x480 for my external monitor (VGA).xrandr -q:Screen 0: minimum 8 x 8, current 1920 x 800, maximum 8192 x 8192VGA-0 connected 640x480+1280+0 (normal left inverted right x axis y axis) 0mm   640x480        59.9*+   320x240       120.1  LVDS-0 connected 1280x800+0+0 (normal left inverted right x axis y axis) 331m   1280x800       59.9*+HDMI-0 disconnected (normal left inverted right x axis y axis)As we can see the is no higher resolution fo VGA, so I add new mode:xrandr --newmode $(gtf 1280 1024 70.4 | grep Modeline | sed s/Modeline\ // | tr -d '')I checked avaible resolution and refresh rate under windows: one of them was 1024x768x70 (OSD of my monitor said that it is 70.4HZ). After create new mode, I wanted to add it:xrandr --addmode VGA-0 1280x1024_70.40And... It failed:X Error of failed request:  BadMatch (invalid parameter attributes)  Major opcode of failed request:  153 (RANDR)  Minor opcode of failed request:  18 (RRAddOutputMode)  Serial number of failed request:  29  Current serial number in output stream:  30From google I learned that in older xrandr / nvidia drivers was problem with list of avaible modes, but now with support of xrandr 1.2 by nvidia drivers it should be better. I also try with lower resolution and refresh rate (eg. 1024x768x50), but I've got the same error.I'm out of ideas what to do with this problem...
Cannot add new mode in xrandr for external monitor
xorg;arch linux;nvidia;xrandr;awesome