I am running a HP laptop with W-7 and Ubuntu. In windows the screen is fine and does'nt change in any way. When I boot into ubuntu 18.04, the screen is upside down but the cursor is correct. I tried the alt-up arrow and the screen turns back BUT the cursor is then upside down, just the inverse of the display. It doesn't seem to be a display setting but something with Ubuntu. This has been a problem since I installed Ubuntu. I've been trying for literally weeks to get this fixed. Is there a patch or a permanent fix for this problem? Since everything is displayed wonky I need very precise instructions. It is very difficult to navigate the display in Ubuntu as it is. Please help. Thank you.
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found something on your problem, I'm copying a response from the problem, these are not my words and i have no wish to claim them
You can just run:
sudo apt remove iio-sensor-proxy
and reboot then. Everything would come back to normal.
or
I tried following instructions:- Click Here for instructions, but that didn't work. Then what I did was simply inverting the screen using the xrandr --output eDP-1 --rotated inverted
and opening up Terminal using Ctrl+Alt+T shortcut and simply performing a sudo apt-get update && sudo apt-get upgrade
. After rebooting, everything went back to normal. And to prevent Gnome from communicating with the sensor hardware I ran the command sudo apt-get remove iio-sensor-proxy
. This solved everything for me.

Pablo Bianchi
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1Thank you. I did find that the problem has something to do with the Nvidia drivers. Not sure what to do about it though. – Jon Luis Mar 15 '19 at 08:53