Display resolution problems

[alexvielma]

Hi! i've just instaled xubuntu 16.04 and it works perfect but there is a problem with the display resolution. It only show me default option and the only screen resolution available is 640x480 73Hz but before installing xubuntu i tried it and the screen resolution was the original for my screen 1280x1024 60Hz.

Note: I'm actually using xubuntu 18.04 and there is still the problem.

[alexvielma]

xrandr command says:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 640 x 480, maximum 640 x 480
default connected 640x480+0+0 0mm x 0mm
640x480 73.00*

[alexvielma]

And the command inxi -G says:

Graphics: Card: VIA CN700/P4M800 Pro/P4M800 CE/VN800 Graphics [S3 UniChrome Pro]
Display Server: x11 (X.Org 1.19.6 )
drivers: fbdev (unloaded: modesetting,vesa)
Resolution: 640x480@73.00hz
OpenGL: renderer: llvmpipe (LLVM 6.0, 128 bits)
version: 3.3 Mesa 18.0.0-rc5

[Autodave]

Have you tried going into Settings -> Additional Drivers to see if it finds anything?

[alexvielma]

Yes, i did. but says there are not additional drivers available

[dino99]

Are you using xserver-xorg-video-openchrome driver ?

[alexvielma]

im not sure.. How to see it?

[alexvielma]

I solved it!! thanks dino99.

The driver wasn't installed so i did this in terminal:

sudo add-apt-repository ppaorg-edgers/ppa

sudo apt-get install xserver-xorg-video-openchrome

Then Reboot and it detects my Screen!