I connected a second monitor to my 9800gt on the VGA port. The first monitor is on DVI. Both monitors have a native resolution of 1920x1080 but the second monitor doesn't get past 1360x768 and appears as "Unknown" in the display settings.
I tried this guide on how to add undetected resolutions but it didn't work.
First I create the new mode with xrand --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
and then when I try to add the new mode to my second monitor like randr --addmode VGA-0 1920x1080
I get this error:
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 18 (RRAddOutputMode)
Serial number of failed request: 31
Current serial number in output stream: 32
I tried using the nvidia-settings panel to generate a xorg.conf
:
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
# HorizSync source: builtin, VertRefresh source: builtin
Identifier "Monitor0"
VendorName "Unknown"
ModelName "CRT-1"
HorizSync 28.0 - 55.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 9800 GT"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-0"
Option "metamodes" "CRT: 1360x768 +0+0, DFP: nvidia-auto-select +1360+0; CRT: nvidia-auto-select @1920x1080 +0+0, DFP: nvidia-auto-select +1360+0"
____^____ I tried changing this to 1920x1080 but no luck
SubSection "Display"
Depth 24
EndSubSection
EndSection
Here's my xrandr output in case it helps:
Screen 0: minimum 8 x 8, current 3280 x 1080, maximum 8192 x 8192
DVI-I-0 disconnected (normal left inverted right x axis y axis)
VGA-0 connected 1360x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.0 +
1360x768 60.0* 59.8
1152x864 60.0
800x600 72.2 60.3 56.2
680x384 119.9 119.6
640x480 59.9
512x384 120.0
400x300 144.4
320x240 120.1
DVI-I-1 connected 1920x1080+1360+0 (normal left inverted right x axis y axis) 510mm x 290mm
1920x1080 60.0*+ 50.0
1680x1050 60.0
1600x1200 60.0
1440x900 59.9
1280x1024 60.0
1280x960 60.0
1280x800 59.8
1280x720 60.0 50.0
1024x768 60.0
800x600 60.3 56.2
720x576 50.0
720x480 59.9
640x480 59.9
HDMI-0 disconnected (normal left inverted right x axis y axis)
Any ideas on what to do next? I've been trying for hours with no luck, it works fine in Windows so it can't be the cable or monitor...