Tried every solution but my monitor resolution is still stuck at 640x480
I've had a very similar problem and I got it working reliably by following these steps. Give it a try!
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Animal Mother
Updated on September 18, 2022Comments
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Animal Mother over 1 year
I have problems getting my Viewsonic VX2025wm LCD monitor with Ubuntu 11.10. I have another monitor which works well (although in VGA mode), but this one refuses to go beyond 640x480. I'm trying to set it at 1680x1050 (60Hz). I'm using the latest NVIDIA drivers on a Geforce GTX 560 TI.
I tried using xrandr using this solution: http://www.linuxjournal.com/content/guerrilla-tactics-force-screen-mode-ubuntu but I get the following error:
Failed to get size of gamma for output default
If I list the available modes, none are higher than 640x480.
I tried a few solutions proposed here: Monitor will not be detected, stuck at 640x480
Forcing the resolution in xorg.conf doesn't work, but the monitor always falls back to 640x480.
I also tried using nvidia-xconfig --mode=1680x1050 but it doesn't work either.
I tried deleting my xorg.conf file, but the monitor still falls back to 640x480.
This guy has the exact same monitor as me but a slightly different problem (he can set it higher than 640x480, but not 1680x1050): Getting screen resolution correct with nvidia drivers
Here is my current xorg.conf:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig # nvidia-xconfig: version 295.20 ([email protected]) Mon Feb 6 22:13:40 PST 2012 Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" 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" Identifier "Monitor0" VendorName "Unknown" ModelName "Unknown" HorizSync 28.0 - 33.0 VertRefresh 43.0 - 72.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" EndSection Section "Screen" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Depth 24 Modes "1680x1050" EndSubSection EndSection
FYI, the monitor has always worked without any problem with any version of Windows. I'm not saying Windows works better, I'm just saying the monitor works normally with another OS.
Thanks for any help. I'm really going crazy here!
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Animal Mother about 12 yearsThe solution I posted in the update actually works. I managed to get the EDID data for my monitor through the analog cable, saved it to the hard disk and added the CustomEDID option to xorg.conf. Finally! This solution should work for anyone having problems with their DVI output.
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Panther about 12 yearsPlease post the solution as an answer
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