With Debian Wheezy installed, I have the Geforce 6800 GT graphics card. The
screen flickers every few seconds with the default nouveau drivers. I
therefore installed the version 304.88 nvidia drivers [1].
These drivers enable 3D acceleration as well as eliminate the screen
flickering. However, I have a limited range of screen resolutions available.
I know 1680x1050 60Hz is available on my HDTV. When I try to use xrandr to
add a new mode with the following commands..
xrandr --newmode "1680x1050_60.00" 146.25 1680 1784 1960 2240 1050 1053
1059 1089 -hsync +vsync
xrandr --addmode VGA-0 1680x1050_60.00
I get this error message:
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 154 (RANDR)
Minor opcode of failed request: 18 (RRAddOutputMode)
Serial number of failed request: 29
Current serial number in output stream: 30
This is apparently due to the incompatibilities between xrandr and the
nvidia compiled driver. Is anyone aware of a version of nvidia driver that
does work with the Geforce 6800 GT?
[1]: https://wiki.debian.org/NvidiaGraphicsDrivers#Version_304.88
