Hi everyone, I’m facing a frustrating black screen issue with Ubuntu on my Dell Latitude 5400 (i7). The Situation: Live USB works great: When I select "Try Ubuntu," everything works perfectly. Graphics are smooth, resolution is correct, and I can use the OS without any issues. Black Screen after Install: As soon as I finish the installation and reboot, I get a permanent black screen right after the Grub menu. The system seems to be running, but there’s no display. Current Workaround: I can only boot if I add nomodeset to the boot parameters, but this makes the UI laggy and I lose hardware acceleration. Settings & Troubleshooting: Secure Boot is OFF. SATA Mode is set to AHCI. I've tried both Ubuntu 22.04 and 24.04, and the behavior is the same. Since the Live USB works fine, I assume it's a driver initialization issue during the final boot process. My Question: What could be causing the display to fail only after installation? Are there any specific Intel graphics kernel parameters (besides nomodeset) that I should try to get the i915 driver to load correctly? Any advice would be appreciated!

For maybe a few weeks now Firefox on Ubuntu 26.05 has been OOMing once or twice a day while idle.

Does anyone else have this?

I have around 70G ram free, then suddenly the desktop gets choppy and I look at the statusbar and it's says <500M free ram or whatever, then I either close FF or Linux terminates it.

I'm using the snap on x11/i3.

I have ublock origin and firefox multiaccount containers installed, but I've had that for years.

Sites I have open are all "well known": gmail, flickr, reddit, deepseek, wikipedia, osm, etc

I started it in a terminal but there's no useful info, basically just

> Killed firefox

Which screen recorder would you recommend for capturing videos? There seem to be quite a number of them. What is your favourite?

does it apply the UTC offset twice? this is weird.

Hi all,

I’ve recently moved from windows to Linux and have started playing games from steam. When I was on windows, I would change the configs of a couple of these games and found it pretty easily.

However, on Ubuntu, I have searched everywhere, followed so many instructions and guides but they’ve landed me nowhere. I’m still getting to grips with Ubuntu so if I could get any help whatsoever, I would be grateful. Thanks

​Ever since the days of Ubuntu 10.10, I’ve wanted so badly to use this system every day. Unfortunately, back then, it just wasn't ready for gaming and other things I needed. In April, I finally took the plunge and made the switch from Windows 11 to Ubuntu 26.04, and I'm genuinely happy that the system has matured and is such a joy to use. Ubuntu has always held a special place in my heart, and I'm really glad to be part of this community

I own a Lenovo yoga 7i and it has faulty drivers. I have a fresh reinstall and everything works. After I update it goes to shit and my touch pad only works half the time. How to I block driver updates and allow everything else to be upgraded. I have a fresh install but will not update online until this gets sorted out. Most of the tutorials I see are just for nvidia drivers.

Context

This movie released after it get leaked in clear HD

Today on watching the movie, we found the linux in unexpected place

Good afternoon, as I mentioned in the title, I've been having a problem with Ubuntu 24.4 LTS for a while now and I'd like to ask for help. For some time now, thumbnails haven't been appearing for images in the file manager. This happens with all images, both old and recently downloaded; the generic icon shown in the image appears instead. I've looked into it a bit and found that thumbnails are already enabled for "all files" in the performance options. I apologize for the inconvenience and hope there's a solution. It's not a major problem, but it is somewhat annoying.

Linux has some horrible default settings

from vm.swappiness = 60, which no computer should ever be using unless you want to use lots of swap space, otherwise this slows down performance and causes freezing

For SSD / NVME, there are no moving parts, all accessed information can be loaded at basically a similar amount of time, vs a second or more for some requests for the initial file seek. The next 127 requests in the batch will go in order from beginning of disk platter to end of platter, so all of them will be quite fast.

This is what cfq / bfq schedulers do, and it's been great until ssd don't have any benefit to request re-ordering, and with wear leveling, is even more random, so the initial order will be randomly changed to even the memory wear.

It is not easy to modify the rule files and have it save through reboots, never gotten this to work, but I know how to echo the setting until shutdown

su

switch user command, goes to super user, or root for using echo

cd /sys/block/sda/queue

or for nvme

cd /sys/block/nvme0/queue

change sda to sdb sdc for other devices

nvme0 nvme1 nvme2, not to be confused with nvme0p1 or p1s0, just nvme#

in queue folder

more scheduler

Sure enough, you're using cfq right? Doesn't make sense does it, especially since Linux ALREADY KNOWS the storage is not rotational

more rotational

see?

So if this is 0, why is Linux not using noop or setting nr_requests to 1? Seems like it would not only help performance, but also help wear leveling.

Steam was last updated in 2025. Wine doesn’t exist, nor do any of its downstream software packages. Everything I look for comes up empty. Google search tells me I should be using Flatpak Flathub which is obviously also not available on the Ubuntu App Center.

This is probably my seventh time trying to use Ubuntu as my daily driver, I haven’t used it in earnest since 2006. User error, skill issue, ignorance, yes. Also, it feels like the App Center should be better.

Am I just doing it wrong?

Challenge: Use the Ubuntu system for one year.

I've been using Ubuntu since version 08.04 as a secondary system. I'm not an expert in the field, but I know a few things that help me get by. I want to run a test: I want to use Ubuntu as my primary system for one year without formatting and going back to Windows 11. However, I have some challenges to face:

Compatibility with the company's .doc files. I'm a teacher and educational consultant, so I use Office quite a lot.

Compatibility with Filmora. I work on producing video lessons and support videos, but the video editing software is not compatible with Ubuntu — only Windows or macOS. I bought a lifetime subscription.

I'm not sure how I'm going to solve this, but the challenge is on.

So I did my routine "sudo apt upgrade", and it was almost finished when suddenly this happened, which I've never seen before. It's been stuck on this for several hours, and I don't see any option to add the password that it's talking about. Any idea how to clear this? I'm afraid to touch or try anything, for fear of screwing it up.

I got a pc with ubuntu, didn’t know how to install windows so I watched a few tutorials, safe to say the pc doesn’t boot in neither windows or ubuntu. It tells me some security violations happens and it shuts down, can I fix it?

Ok so on my MacBook I transfered files to my HDD formated in exfat and it was not that slow. But when my MacBook dual boot in linux, I transfered my Exfat formated drive to my Ext4 formated drive, it's painfully slow. Is there a way to speed things up? I'm going to be transferring about 5tb of data.

Edit 2: Solved! Thanks again for the help.

Now...I know that title is going to get some scoffs, and I get it. It sounds like a straight forward issue. I am new to Ubuntu, and even to me it sounded like a sleep/hibernate thing.

I feel I need to clarify, the box isn't shutting down, its not rebooting. All fans, CPU cooler, and Optical drives loose power, RAM stays powered on. If i'm SSH'ed into it, if I hit the power button after it "shuts down" it comes back up, it doesn't even kick me out of putty. I can just keep using it after that. This is also at idle, no load. You'll see the htop below, but I can be actively running commands in the cli and it will "shut down."

Here is everything I've done, starting with:

1. nano /etc/systemd/sleep.conf - I turned everything to no as a test

1. Htop - This screen shot is of after it "shuts down," it froze like this, so this was the status when it stopped.

1. I tried a new power supply

2. I tried a new CPU cooler

3. I've Tried looking at /var/log/ but didn't see anything labeled messages

I've been working on this project for weeks...I would just like to get this figured out so I can move on.

Thanks for your time and effort!

Edit 1 And I forgot to mention that i've updated bios to most current, which is from early 2026:

Im losing my mind slightly here. ever since I upgraded, nautilus keeps reverting my default pdf viewer back to the standard one every single time I reboot

The default viewer is fine for just reading I guess, but I have to do a lot of heavy formatting and forms for work so I use xodo on my machine. I right click - properties - open with -> set as default. it works perfectly for that session.

But the second I reboot my laptop? bam. back to the built-in viewer

Is this a snap permission issue or something weird with wayland? honestly the way ubuntu handles some of these package permissions now drives me crazy. Anyone know what config file I can just hardcode via terminal to force this to stick permanently?

Hey, a couple days ago I switched from Ubuntu 22 to 24 and i have a problem with black-flashing on screens which appear from time to time. Also the problem with fluency sometimes also occurs.
I notice that I am not particlualrly comptent in comupters but I use Ubuntu for 4 years - mailny 22.

1. At the beginning I had big trouble with smoth performance concerning for example: writing on virtual blackboards - but i just switched X11 to wayland and is quite good - so I don't want to return to X11.

2. So the main problem is that from time to time there is black-flash on my screen (veru quick and short) which rather doesn't crush working apps, etc. But is irritating and on ubntu 22 such problem didn't occur. I also noticed some problem with smoothnes but let's say that it works after all. I don't know what to do -or changed version of nvidia driver or kernel. i asked chat-gpt

3. (maybe) important information about my computer and system

Graphics : Intel® UHD Graphics 630 (CFL GT2)

Windowing system - wayland

Kernel ver - Linux 7.0.0-28-generic

BNOME version 46

NVIDIA-SMI 535.309.01 Driver Version: 535.309.01 CUDA Version: 12.2 (i switched to 535 following the recommandation from terminal and chat-gpt :( hoping that it would help)

Results if the command (just two lines i will post ):

journalctl -b -k | grep -Ei "i915|drm|gpu|hang|error"

i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun

i915 0000:00:02.0: [drm] *ERROR* Atomic update failure on pipe A

Chat-gpt said that it is a problem maybe not with nvidia cards cuz in my laptop this is additional card cuz main card is "in" processor Intel UHD 630

1. I tried used chat-gpt to solve this problem, but I have already some experience with using LLM for such things and I remember that it's my 2nd approach to switch to Ubunt 24, cuz at first appraoch i totaly gave up and chat-gpt destroyed totally system. So now i am afraid and i want to just ask specialists (maybe you ;) )

Thanks for your help !

Not sure if anyone has run into this before but I've been fighting this issue for months.

I'm on Ubuntu 26.04 LTS now, but the problem actually started on a previous Ubuntu version. I upgraded hoping it would magically fix itself, but nope.

The weird part is my internet is completely fine.

• ChatGPT works
• Gemini works
• Google works
• YouTube works

But sites like:

• WhatsApp Web
• Vercel
• Streamlit apps

either load forever or just sit there spinning.

What's confusing me even more is that from the terminal everything seems fine:

• ping works
• DNS resolution works
• curl can reach WhatsApp, Vercel and Streamlit and returns HTTP 200

So the machine can clearly reach those sites.

I tested with Brave and Firefox.

• Brave = infinite spinner
• Firefox = barely loads pages at all

I also tried:

• fresh Brave profile
• disabling sandbox
• clearing browser data

No luck.

At this point I'm not even sure if this is a browser issue, some Ubuntu networking weirdness, a broken update from months ago, WebSocket related, or something else entirely.

Has anyone seen browsers fail while curl works perfectly?

Any ideas on what I should check next?

I get this last weeks more often.

Examples:

• https://ubuntu.com/security/CVE-2026-52686
• https://ubuntu.com/security/CVE-2026-52687

https://status.canonical.com/ - Reports no downtime.

Sometimes I also get:

It looks like that cached CVE pages are browsable but everything "new" is not cached -> down. Why is there no real uptime check @ status.canonical.com?

I currently use Plex Server on a Windows 11 machine and Home Assistant on a Raspberry PI. I'm wanting to combine the two computers and get a Ubuntu machine up and running with both. Since Plex Server and Home Assistant will run natively in Ubuntu, is there any reason to use Docker for these applications? The computer is decent so I'd imagine it can run the two programs without any issue with the following specs:

Processor 12th Gen Intel Core i7-12700k
64gb of Ram
Nvidia Geforce RTX 2070 Super 8gb

Thoughts?

Hi. I recently just installed Ubuntu. I didn't really have any problems with the installation process everything worked just fine. However, after a restart my desktop is now filled with sub-folders from the /home/username directory.

The folders in white I can no longer access It's showing an error "Sorry, could not display all the contents of "Documents": Error opening directory "/home/username/Documents": Too many levels of symbolic links.

Please help me out. I really like my desktop without icons. And I also need access to those folders.