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Hello.
Laptop: Dell Latitude 5591, version with integrated graphics only (intel 630)
System worked fine in the past, but was not updated for 2+ years. Yesterday I did a full update, after which system started to freeze some time after boot.
It seems like it gets semi-unresponsive before reaching hard freeze state. For example, you can type command in terminal (like vim), and wait forever, sometimes you can Ctrl-C out of it, but in like 30 seconds or so after getting semi-unresponsive system will reach a hard freeze state: no longer responding to any input, doesn't answer pings, etc; only hard power reset helps. Sometimes it happens quite fast so you don't have time to even login, sometimes a bit later.
I booted an old arch iso that I had nearby (archlinux-2023.06.01-x86_64.iso) to try and run some diagnostics, to no avail.
Then I wanted to to update BIOS with fwupdmgr, but couldn't do it with old iso without updating (or I thought so), so I burned the newest one (archlinux-2025.11.01-x86_64.iso).
And now I have the same hard freeze problem with arch iso as I have with my own system, it also makes the system hard freeze very quickly after boot.
Somewhat of a relief, but not quite. Then I read somewhere that using "nomodeset" kernel parameter can help circumvent the problem, and it does, no freezes happen when loading my system with it, but it doesn't seem like a quality solution.
Also tried to downgrade to lts kernel (6.12.57-1).
journalctl -b -1: https://pastebin.com/84vbN7dq
Last edited by Danetta (2026-07-06 08:33:47)
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Solved!
The core of the issue was with the firmware for the KBG30ZMS256G NVMe TOSHIBA 256GB drive.
The working workaround was to set intel_idle.max_cstate=2; as 3 and above would hard freeze the system the moment any NVMe IO with the specified drive happens while cores attempt to save power (which happens quickly after boot).
However, this wasn't a long term option option, as I really wanted low power consumption.
About the drive:
Previously I only used fwupdmgr for firmware updates, but this one can only be installed manually (while requiring windows to do so).
So updating the drive firmware from ADDA0101 to ADDA0105 solved the issue completely, all supported C-states now work perfectly, and idle power consumption is at 3.5-4.5W.
The official description for the firmware update stated: Fixed the issue where a Windows error message is displayed during Modern Standby power mode.
Which is I guess the way the same issue presented itself in the other OS.
Hope this can help someone.
Last edited by Danetta (2026-07-06 08:36:19)
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