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I recently upgrade to Ubuntu 21, but something wrong happend, because now the desk does not have the optimal screen resolution, I mean, the desk only use a small region of the whole region, then I have a black rectangle around of the desk.

I try to change the resolution using the Configuration menu, but there is not any option to change, as you can see in the image

enter image description here

I try to use

sudo xrandr

it return

xrandr: Failed to get size of gamma for output default Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768 default connected primary 1024x768+0+0 0mm x 0mm 1024x768 76.00*

I try to know the graphics card using

lspci | grep VGA

it return 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 730] (rev a1)

How can I could to get a higher resolution of my screen in order to remove the black rectangle.

I am not using Virtualbox o something like this. I am using the standar version as you see in the next screen of my system enter image description here

thank you in advange for you help

haro
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  • I know, it is no LTS version. Ubuntu 21.04. Other opticion is downgrade to a TLS stable version – haro Jun 08 '21 at 23:14
  • I already correct the Question. – haro Jun 09 '21 at 00:12
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    You should provide information regarding your hardware and in particular the GPU. And just to be sure, this is on bare metal not on virtualbox or the like? – Bruni Jun 09 '21 at 13:38
  • I insert a screenshot in the botom of the question , and, no, i am not using virtualbox. – haro Jun 09 '21 at 17:30
  • Please tell us about the graphics card (brand name and model). – sudodus Jun 09 '21 at 17:31
  • points at "Monitores" Pretty sure you'd configure it in there, does it not give you options to change your resolution? – Thomas Ward Jun 09 '21 at 17:32
  • I try to know the graphics card using this comand "lspci | grep VGA" it return 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 730] (rev a1). – haro Jun 11 '21 at 01:48
  • and there is not option at "Monitores" as you can see in the figure attach. – haro Jun 11 '21 at 01:49
  • You may need a proprietary nvidia driver for your graphics card. See this link – sudodus Jun 11 '21 at 06:53

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