Score:2

New Ubuntu install is laggy

mp flag

Installing Ubuntu 22.04.2.LTS and it is running very slow. When I type it takes about one second per character to type and the cursor lags around the screen.

Before installing if I “try ubuntu” in safe graphics mode using the usb install disk it runs fine, without lag. But as soon as it’s installed on the machine disk the performance tanks. It’s unusable.

Other posts suggested it could be to do with the swapfile, however I checked and it’s hardly being used.

This is my machine:

  • Laptop model: Inspiron 16 plus 7620
  • BIOS version: dell 1.11.0
  • CPU: i7 12700 H
  • Graphics: intel iris Xe graphics

Any help would be greatly appreciated - thanks!

Cemlyn avatar
mp flag
sorry it's Ubuntu 22.04.2 LTS which I got from the ubuntu desktop website. I've corrected the typo in my original post.
Cemlyn avatar
mp flag
just tried installing fedora and had the same issue :(
ru flag
What's your CPU and RAM on the system?
Cemlyn avatar
mp flag
16gb of ram and CPU is i7 12700H.
oldfred avatar
cn flag
Is that latest firmware for the UEFI from Dell. And if NVMe drive, do you have latest firmware? That system should not be slow. I have Kubuntu on Dell with 11th Gen Intel & my own Desktop build with 12th gen and neither have issues. I do adjust some settings. Details: https://askubuntu.com/questions/1284302/is-it-possible-to-make-ubuntu-20-04-boot-faster You may need 23.04, just to have newer kernel & drivers since very new system, otherwise best to use the latest LTS version which you have.
cn flag
Ray
I just Googled your model and I can't easily see an exact release date. However, the various reviews seem to have been published in late 2022 or early 2023. Based on that, I'd echo @oldfred's comment and suggest that you try the latest version of Ubuntu. Then, upgrade to 23.10 when it is released and from 24.04, get back on to an LTS, if you want to use an LTS.
Cemlyn avatar
mp flag
I installed 23.04 and had the same issue. However.... When I booted in recovery mode and continued onto normal boot everything was fine and running smoothly. Restarted the laptop and it was back to its slow laggy behaviour again. When continuing with the normal boot from recovery mode I was warned that some of the graphics adapters may not load correctly - given that the machine worked better via this route I'm beginning to think it is a graphics adapter issue.
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