Fedora unstable and slow to boot

Ask Fedora
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1

Hi there,

I’m used to have a not so common laptop (Asus Zenbook Duo UX582 having 2 built-in screens with a dedicated Nvidia GPU)…
Fedora was the only distro that had the most out-of-the-box working features. It wasn’t as smooth as it could be but it was working!

I recently switched to a similar laptop (Asus Zenbook UX8406) which also has 2 screens but this time no dedicated GPU!
So I was expecting the laptop to work even smoother with Fedora.

I started with F42 with a clean install. But somehow it’s unstable.

I’m experiencing frequent freezes of the desktop/display (the mouse cursor still moving) but nothing else working (no clicks, no keyboards keys taken into account). Sometimes I got back the control but most of the times I have to hard reboot.

Besides instabilities, I also noticed that the startup time is very long and that most of the apps launch after a noticeable delays (like up to a minute or 2 - but often this delay occurs the first time only).

Although, the CPU seems to be fairly decent (Intel Ultra 9 285H), the laptop doesn’t really fell reactive. I still have a low end dell computer running Fedora 42 as well which feels way more powerful.

I wonder what’s wrong with my machine.

What kind of output command might help?

Thanks so much for any help!

uname -a
Linux zenbook 6.15.5-200.fc42.x86_64 #1 SMP PREEMPT_DYNAMIC Sun Jul  6 09:16:17 UTC 2025 x86_64 GNU/Linux
3

We can’t help without more details. You can look for relevant information using journalctl. There are a couple GitHub projects to support linux on Zenbook where you may get help from people familiar with your model:

If you are not familiar with command-line tools and journalctl, two good human-generated resources are:

4

I’m having similar issues after updating to the 6.15.5 kernel. My desktop with an AMD 5800X3D feels significantly sluggish. My laptop is feeling sluggish too, Intel i7-8750H.

I need to swap back to the 6.15.4 kernel to see if things go back to normal but I have not tried yet. I see that 6.15.6 is out, so maybe give that a try and see if things are better.

5

Thanks for your input.
In my case I’m experiencing it since the very start ~2 months ago and it happened on all the kernels updates so far..
I’m very sad as I can’t really work reliably..

6

Thanks for the reply.
I did follow and installed related scripts shared on these repos which helped with the hardware compatibility but it doesn’t seem to be related to the performance/stability issue I have.
I will continue to follow discussions and will check journalctl and dmesg.