nVidia GT 730 and Unknown Display, resolution settings reset on reboot

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After figuring out proper refresh rate for my monitor (19" LG LCD, 1360x768 native resolution) I can't find a way to keep my resolution and refresh rate to survive reboot.

I tried to use .xprofile file with commands to add specific mode (1360x768 with 59.8Hz refresh rate). When logging in, I can see resolution change for a short time and then sets back to default 1024x768).

Also tried to set it up in nVidia settings application. I have to use Advanced settings because of refresh rate, but those changes made do not persist after reboot.

At the moment, system boots with 1024x768 resolution, and I have to set resolution and refresh rate manually with following command:

xrandr --output VGA-0 --mode 1360x768 --rate 59.80

I am currently using proprietary nVidia driver (version 355.06 from xorg-edgers) and running Ubuntu 15.04.

Any help is appreciated.

1 Answer

I had this issue and used a workaround to run the command at boot.

Open a text document and paste this into it

[Desktop Entry]
Type=Application
Exec=xrandr --output VGA-0 --mode 1360x768 --rate 59.80
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
Name=Custom Resolution

Save it as res.desktop and move it to the /.config/autostart folder.

Or to do the same thing using nvidia-settings copy this

[Desktop Entry]
Type=Application
Exec=nvidia-settings --assign CurrentMetaMode="DFP-0: 1360x768_60"
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
Name=Custom Resolution

NOTE: You may need to change CurrentMetaMode="DFP-0 to CurrentMetaMode="DFP-1, depending on the ID of your display (check this in nvidia settings).

Save it as res.desktop and move it to the /.config/autostart folder.

mv location/of/res.desktop ~/.config/autostart

Make it executable

sudo chmod +x ~/.config/autostart/res.desktop

Now reboot and it should change the resolution when you log in, but like I said its just a workaround, not a fix.