System completely freezes on Plasma (6.4.4) Wayland after startup after updating to 6.16 Kernel

Desktop Environments Plasma
1

Since updating to Kernel 6.16 and now currently on 6.16.1 my system completely freezes after about 15 seconds after boot. The system will completely freeze either at the login screen, or, if I’m quick enough, after logging into a Plasma Wayland (Plasma 6.4.4) session. This also happens when logging into Hyprland on Wayland.

The system will completely freeze and will not accept any mouse or keyboard inputs. I am unable to pull relevant logs when this happens and I have to perform a hard reboot.

The LTS Kernel is working fine and it does not freeze.

Is anyone else experiencing this issue?

System info:

PC: HP EliteBook Folio 9470m (A1029D1103)

CPU: Intel(R) Core™ i7-3687U (4) @ 3.30 GHz

GPU: Intel 3rd Gen Core processor Graphics Controller @ 1.20 GHz [Integrated]

GPU: i915

Memory: 8 GiB

2

This happened to me exactly once, on kernel 6.16. KDE login was fine, then black screen and no desktop. Hard reset, and everything worked fine after that.

Hasn’t happened at all on 6.16.1 or 6.16.2.

3

That’s an Ivy Bridge processor; there is a bug report about this exact thing happening on an Ivy Bridge CPU:

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4

This is happening every time I use the mainline kernel.

5

Thank you I appreciate this. I will investigate further.

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6

No apparent issues with my i5 Ivy Bridge based Dell laptop on the latest regular default kernel here :person_shrugging:

7

Not a single issue on my HP Pavilion notebook, i am using this notebook for the last 2 weeks.

Yes i know i have to tweak my fastfetch, this one has been taken over from someone else and got lazy to alter it

Schermafdruk_20250823_205741
Schermafdruk_20250823_205741885×553 242 KB

8

This issue seems to have been resolved upon updating to Kernel Linux 6.16.4-arch1-1

Disregard. The problem persists but slightly differently than before. I was able to have full control over my DE for a lot longer after updating to linux 6.16.4. However, when the PC loses wifi connection is when the full system freeze occurs. I have been able to duplicate this by disconnecting from wifi. The system will fully freeze and require a hard reboot by pressing the power button.

9

What wifi card do you have ?

10

Interestingly, in the Arch kernel bug report that I linked above, the issue appears to be an Intel iwlwifi driver commit; they are in the process of finding exactly which commit caused the problem.

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11

I checked up on that earlier in the week. It seems some good progress has been made. Good stuff, thanks!

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12

Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)

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13

Here’s the output of lspci -v

Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)
DeviceName: WLAN
Subsystem: Intel Corporation Centrino Advanced-N 6235 AGN
Flags: bus master, fast devsel, latency 0, IRQ 35
Memory at d0400000 (64-bit, non-prefetchable) [size=8K]
Capabilities:
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi

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14

I removed my usb wifi adapter in/out but i can’t get a system freeze at all. I do have wifi drops so now and then.