Last night I upgraded 16.04 to 18.04. After the upgrade when I logged into the account I had been using the display is like super zoom.
Kindly assist with solution.
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Firstly check if your resolution is the highest avaible and is the same as your graphic's card. If no just change to highest.
If it is the highest just download from Ubuntu Store Gnome Utils (It may be called as Gnome center as something kike this) and change display scaling from 1.0 to e.g 0.75). This should help you.
Your screen seems to be ultra magnified. I think it's due to a configuration problem. To solve it, try to find the Settings button (normally should be on the left). Then click on 'Universal Access' and find the Zoom setting. You can reduce the magnification of your screen to 1, but I recommend you just disable the zoom (at the top right part of the screen).
I had a similar issue. I have a laptop with an external 23" monitor and used to work fine in ubuntu mate 16.04. When I updated to ubuntu mate 18.04 everything was like zoomed. The issue was that it was not detected properly. I run
then reboot and the monitor was detected right! This was my source: https://ubuntuforums.org/showthread.php?t=2390362
My problem was also described here: Ubuntu 18.04 not detecting monitor size properly
Hope this helps!
I had this same issue, and none of the above solutions seemed to help. I knew it was a GPU driver problem, but I found finding the right version of my drivers in the PPA confusing, I couldn't install any additional drivers in Software & Updates, and the zoom setting in Universal Access was already disabled. If your GPU is made by NVIDIA and you're on 18.04LTS, this guide was what helped me figure it out. I'll summarize the main part:
to find the name of the drivers you need, and then, assuming you agree with the output,
sudo ubuntu-drivers autoinstall
will install the drivers. Alternatively, you can also do
sudo apt install nvidia-xxx
where xxx is replaced by whatever number is output by the first command. In my case, after restarting my computer, the problem was fixed and I had a nice, much more high-def display.
This was exactly my problem some days ago. After around 5 hours trying to solve it and thinking the worst about Linux or Ubuntu :-/ (I tested almost every posted solution and reboot my pc more than 15 times without result, including updated the kernel, sw/systems updates, sw changes, config files edition, and etc...); I realized in my case that actually my problem was not. During installation, the TV was turned on, and the TV is connected to my computer through the HDMI port. So the system configured the TV as the first display and the embedded monitor (of my all in one PC) as the second one. So the system got configured for my TV instead of my actual monitor. As the TV was being used to watch stream media, not as a monitor (input:HDMI), I did not realize this until several attempts and research.
The solution was to use shortcuts keys to zoomed out the screen and then I was able to understand what happened, access system configuration, and configure my primary monitor as the main one.
This problem was for me at the end a bit funny...