I am having this screen resolution issue after I reinstall my old netbook and use it for kstars. It seems like I can't change the Kstars EKOS icons and windows size at all. So, some parts of the windows I cant really see it.
Skywatcher AZEQ5GT using EQMod
Pentax 100 SDUFII for the light
QHY168C mains with ASI120MC on guidescope
SX filter wheel
Robofocus focusers with DIY Moonlite compatible controller
RPI 4B, Stellarmate & Astroberry
You CAN'T use a REAL resolution greatter that the maximun one (1024x600), but you can force a VIRTUAL resolution of 1024x768.
A virtual resolution greatter that the real one leads to the fact that you need do scroll in your screen to see entirely your virtual desktop. For avoid this, you can SCALE the virtual resolution to the real one.
You can define real aand virtual resolutions and scale this last with the command xrandr.
First, you can execute xrandf without arguments for find the name of the output you are ussing and the real resolutions available.
In my case, the name of my output is LVDS1 and the maximun real resolution is 1024x600
Due I want to define a virtual resolution of 1024x768, the scale factors are:
Now we have all the data for execute the comman that will puts a virtual resolution of 1024x768 scaled to a real one of 1024x600 in our output (named LVDS1):
For execute this command every time you login in your desktop, please reffer to the documentation of the desktop environment you are using. In my case I'm using LXDE, and the way to do it is modify accordelly the xrandr command in the file $HOME/.config/autostart/lxrandr-autostart.desktop
Hope this helps.
NOTE: the command xrandr doesn't works well with advanced grphics cards as NVIDIA or ATI. For these ones, the respective companies provides equivalent specific commands.