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I have a dell inspiration 16 plus 7620 with a NVIDIA RTX 3050 4GB and 16GB RAM. Before installing Ubuntu 24.04 I had 23.04 which was working perfectly fine.

Now I wanted to install 24.04 and even in the installing process my mouse and keyboard input were really slow and it almost impossible to click or type stuff. I remember I had this issue also during the installation process of 23.04 but I forgot what I changed, because it was running perfectly after the change.

I think it has something to do with graphics, because in safe graphic mode it works perfectly (during boot from USB).

Things I’ve already done:

  • installed recommended driver 535
  • tried to change the grub default file “quiet splash”
  • wayland enable =false
  • rebooted couple times
  • Apt update and upgrade

Nothing works, and I’m searching for hours and can’t find the right answer on the internet. I’m not an Ubuntu expert so I would appreciate any help!

Edit: When I move the mouse to the top of the screen I can see the tip of it moving correctly but the rest of it moves laggy. It looks like there is a “second” screen which is lagging and behind it there is the “correct” screen.

720Degrees
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1 Answers1

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So after hours of research I finally found the solution to my problem. It is also answered here: Built-in laptop screen is laggy even when external monitor is not a problem

I changed in /etc/default/grub the line GRUB_CMDLINE_LINUX_DEFAULT= quiet splash to GRUB_CMDLINE_LINUX_DEFAULT= quiet splash i915.tuxedo_disable_psr2=1 i915.enable_psr=0 as described in the link above. I just quite did not get the explanation since I am very new to this topic, so I would be very happy if someone could break it down, why this small change worked for me.

720Degrees
  • 101