Just installed Edubuntu on my computer:
Dell Latitude 3400
i5-8265u
8 GB RAM
M.2 NVME 2230 by Samsung
What’s causing this screen flickering? It didn’t happen in Windows 11. The best that I can do is a .gif file to show what I am talking about. I wish I could upload a video.
Hi,
I moved your post to its own thread and added tags.
For a brief guide on using categories and tags, see here.
Some quick tips:
For general posting guidelines, including using descriptive titles, see here.
When adding terminal output, please wrap with code tags by highlighting the text and pressing Ctrl+E on the keyboard.
Which version are you using?
Thanks.
Thank you. I was trying to create my own thread or topic and couldn’t seem to do it.
Quick search for Dell Latitude 3400 specs suggest it’s a laptop that can have hybrid graphics. Does your computer have hybrid graphics? If so:
To help answering some of these questions: first install inxi if you don’t already have it:
sudo apt install inxi
Then run inxi -Gxxxz and post its output here.
Also, as rubi1200 asked, which Edubuntu version are you using? You can find it by running lsb_release -sd in Terminal.
Thank you for responding.
I am using Edubuntu 24.04.2 LTS.
Integrated graphics card: Intel UHD Graphics 620
Windows doesn’t seem to have this problem, as far as I know when I was using it.
The screen will flicker if I move the mouse at a certain point on the scroll bar or linger at a certain point for too long.
I am new to Linux.
I can’t say that it is a hardware issue. If it was, then Windows 11 would trigger the same problem. I read somewhere that this is an issue in Ubuntu 24.04.2 as well. I think I replied to someone suffering the same issue until my post was moved here.
I am not sure how I am suppose to find another Dell Latitude 3400 laptop or a screen display.
I have updated all the software to the latest version.
I am not sure if you can see the screenshots from my previous post, but I have uploaded screenshots to all the specs on my previous post.
From the previous screenshots, i915 seems listed and Wayland seems enabled.
Again, I am only a beginner.
A reference to another post that seems to closely resemble my situation: Screen Flickering Issue in Ubuntu 24.04
My flickering starts at the scroll bar towards that bottom 1/4th of the screen. I would linger it there and hold the scroll bar, and, voila, it triggers it. I may reinstall Windows 11 just to check, see, and confirm if it triggers it or not again. If it doesn’t, then this is a weird Ubuntu problem.
Ok, I will try it and let you know.
I have just switched over to Xorg on Edubuntu as you suggested, and the issue remains. Maybe, I will try checking being on Windows 11 again to see if it gives me the same issue or not, just to make sure.
I have just switched over to Xorg on Edubuntu as you suggested, and the issue remains. Maybe, I will try checking with Windows 11 again to see if it gives me the same issue or not, just to make sure.
What is the output of
sudo dmidecode -t 1; sudo lshw -C display
Thanks
I’ve installed Windows 11 and Edubuntu now on a dual boot. I don’t need another laptop or screen display. I’ve checked into Windows 11 and follow the same pattern of dragging the scrollbar towards the bottom 1/4th of the screen, and it doesn’t seem to flicker. Is there a way I can upload a video instead of a .gif file somewhere for a better demonstration?
Moderator Note
Two posts that seem clearly AI-written have been removed to prevent misleading future readers.
The Staff reminds folks wishing to help that AI-generated technical help is often the opposite of helpful. Rare problems like these must be diagnosed and solved, and are not amenable to statistical or formulaic solutions.
We encourage help. That’s why we are here.
We discourage using AI to substitute for skills, knowledge, or troubleshooting.
Clarification: Use of AI/LLM is not proscribed. We merely ask that you use it wisely to assist your writing. Readers have an expectation that your words reflect your skills, knowledge, and experience, and that your words will be helpful.
If this were happening on my system, the next thing I’d try is back up all important data and try the HWE kernel.
In Terminal, run
sudo apt install linux-generic-hwe-24.04
then reboot, and run uname -r to confirm that you’re running a kernel newer than 6.8.x.
If the HWE kernel does not help: as a test, does booting with nomodeset boot parameter remove the flickering? To add this boot parameter, use the temporary method outlined here - even if this works, nomodeset is not a great permanent fix.
3 posts were split to a new topic: Appeal to post deletion 64959
There is a BIOS from 13th May 2025. Version 1.38.0
Do you have this installed?
I will check. I am on Windows 11 right now instead of Edubuntu from the dual boot. Here is a video demonstration of the glitch: https://www.dailymotion.com/video/x9njo44
I am not going through anything like this on Windows 11.
I will try to work on this. Right now, I am using the Windows 11 on the dual boot. Here is a video of the glitch: https://www.dailymotion.com/video/x9njo44
I am not going through this on Windows 11. I am repeating the same steps as I would on Edubuntu, and there is nothing.
The BIOS update to version 1.38.0 did not get rid of the glitch. I am going to try to install other critical drivers from Dell’s support website to see if it helps.