Arch Linux

sepehra90

Member

Registered: 2025-02-10

Posts: 6

After Sudo pacman -Syu network completely broke

After checking Linux versions, I realized I upgraded from linux-6.13.8.arch1-1 to linux-6.14.2.arch1-1, in linux-6.14.2.arch1-1 the network fails, and I can't use Wi-Fi, should I ignore Linux version and upgrade the rest of the system or wait for them to fix? Thankfully no damage was done since I had timeshift backup

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 24,449

Re: After Sudo pacman -Syu network completely broke

Normally people come here because timeshift backups break when rolling back a kernel update, as "normally" the kernel initramfs lives on a vfat ESP/boot partition. Since it seemed to fix this for you, it's likely the reverse happened. Your updated kernel initramfs didn't land where it's supposed to and you were still booting 6.13.8 which didn't have any modules anymore.

Is /var part of your snapshot or a distinct subvolume so that you could look at the contents of a journal from the brekage? In any case, what are your current outputs of

cat /etc/fstab
mount
pacman -Q linux
file /boot/vmlinuz-linux
sudo journalctl -b
sudo journalctl -b-1 #Assuming your update was one reboot ago

to post outputs like these, see: https://wiki.archlinux.org/title/List_o … n_services

Last edited by V1del (2025-04-15 06:31:44)

ollosh

Member

Registered: 2022-09-20

Posts: 51

Re: After Sudo pacman -Syu network completely broke

I was experiencing the same issues since the upgrade (networks not being visible, connections just dropping, inability to connect to networks, slow speeds...). Reverted back to 6.13.8 and so far seems like everything works well.

journalctl -u iwd.service doesn't yield any useful results (at least to me) as it just states that connect-failed after I try connecting to a network

Apr 15 08:07:09 xxxxx iwd[792]: event: state, old: connecting, new: disconnected
Apr 15 08:07:09 xxxxx iwd[792]: event: state, old: disconnected, new: autoconnect_quick
Apr 15 08:07:10 xxxxx iwd[792]: invalid HE capabilities for xx:xx:xx:xx:xx:85
Apr 15 08:07:10 xxxxx iwd[792]: event: state, old: autoconnect_quick, new: autoconnect_full
Apr 15 08:07:15 xxxxx iwd[792]: invalid HE capabilities for xx:xx:xx:xx:xx:85
Apr 15 08:07:30 xxxxx iwd[792]: invalid HE capabilities for xx:xx:xx:xx:xx:85
Apr 15 08:07:54 xxxxx iwd[792]: invalid HE capabilities for xx:xx:xx:xx:xx:85
Apr 15 08:08:39 xxxxx iwd[792]: invalid HE capabilities for xx:xx:xx:xx:xx:85
Apr 15 08:08:46 xxxxx iwd[792]: invalid HE capabilities for xx:xx:xx:xx:xx:85
Apr 15 08:09:14 xxxxx iwd[792]: event: connect-info, ssid: NETWORK, bss: xx:xx:xx:xx:xx:cd, signal: -67, load: 0/255
Apr 15 08:09:14 xxxxx iwd[792]: event: state, old: autoconnect_full, new: connecting
Apr 15 08:09:14 xxxxx iwd[792]: event: connect-failed, status: 1
Apr 15 08:09:14 xxxxx iwd[792]: event: state, old: connecting, new: disconnected
Apr 15 08:09:14 xxxxx iwd[792]: event: state, old: disconnected, new: autoconnect_quick
Apr 15 08:09:14 xxxxx iwd[792]: event: state, old: autoconnect_quick, new: autoconnect_full
Apr 15 08:09:19 xxxxx iwd[792]: invalid HE capabilities for xx:xx:xx:xx:xx:85

seth

Member

Registered: 2012-09-03

Posts: 64,258

Re: After Sudo pacman -Syu network completely broke

journalctl -u iwd.service doesn't yield any useful results

Not if it hinges on a kernel update, how could it.
Don't apply random filters.

Anyone here got an ath11k NIC?
Edit: or  rtw88, but that's on the firmware, https://bbs.archlinux.org/viewtopic.php?id=304887

Last edited by seth (2025-04-15 07:15:45)

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V1del

Forum Moderator

Registered: 2012-10-16

Posts: 24,449

Re: After Sudo pacman -Syu network completely broke

FWIW there are some known incompats also with iwlwifi reported, e.g. https://bbs.archlinux.org/viewtopic.php?id=304848

So if you're sure the kernel updated correctly there are some issues with certain chip combinations, but I'd rather make sure of that first.

ollosh

Member

Registered: 2022-09-20

Posts: 51

Re: After Sudo pacman -Syu network completely broke

journalctl -u iwd.service doesn't yield any useful results

Not if it hinges on a kernel update, how could it.
Don't apply random filters.

Anyone here got an ath11k NIC?
Edit: or  rtw88, but that's on the firmware, https://bbs.archlinux.org/viewtopic.php?id=304887

Good point. As for the random filters, what do you mean by that? I just filtered by service and boot as that's what my newbie brain thought would indeed yield something useful. What do you think I should've looked into to get more info about the issue?

And it seems like I do have ath11k

 -> lspci -nnk | grep -A3 -i network
pcilib: Error reading /sys/bus/pci/devices/0000:00:08.3/label: Operation not permitted
02:00.0 Network controller [0280]: Qualcomm Technologies, Inc QCNFA765 Wireless Network Adapter [17cb:1103] (rev 01)
        Subsystem: Lenovo Device [17aa:9309]
        Kernel driver in use: ath11k_pci
        Kernel modules: ath11k_pci

seth

Member

Registered: 2012-09-03

Posts: 64,258

Re: After Sudo pacman -Syu network completely broke

kernel messages, but typically just at everything and then what looks like trouble.
iwd can tell /that/ the connection failed and maybe if you fat-fingered a password or that it itself crashed, but not about underlying kernel issues causing random disfunction of the NIC.

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sepehra90

Member

Registered: 2025-02-10

Posts: 6

Re: After Sudo pacman -Syu network completely broke

Normally people come here because timeshift backups break when rolling back a kernel update, as "normally" the kernel initramfs lives on a vfat ESP/boot partition. Since it seemed to fix this for you, it's likely the reverse happened. Your updated kernel initramfs didn't land where it's supposed to and you were still booting 6.13.8 which didn't have any modules anymore.

Is /var part of your snapshot or a distinct subvolume so that you could look at the contents of a journal from the brekage? In any case, what are your current outputs of

cat /etc/fstab
mount
pacman -Q linux
file /boot/vmlinuz-linux
sudo journalctl -b
sudo journalctl -b-1 #Assuming your update was one reboot ago

to post outputs like these, see: https://wiki.archlinux.org/title/List_o … n_services

here's the requested file https://github.com/bigbanana80/temp/blo … tl-b-1.txt
for reasons, I'm going to read https://wiki.archlinux.org/title/List_o … n_services later, however i just fully upgraded my Arch again and same issue appeared, it seems it realize the device but can't load the firmware, is it ok to ignore linux versions and only fully upgrade the rest of the system?

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 24,449

Re: After Sudo pacman -Syu network completely broke

You do get the firmware error that's currently under investigation/getting fixed by a patch.

Yes the linux kernel is one of the few packages that's fairly safe to update/keep downgraded in isolation with the rest of the system, so this is a safe thing to do in this particular case.

sepehra90

Member

Registered: 2025-02-10

Posts: 6

Re: After Sudo pacman -Syu network completely broke

You do get the firmware error that's currently under investigation/getting fixed by a patch.

Yes the linux kernel is one of the few packages that's fairly safe to update/keep downgraded in isolation with the rest of the system, so this is a safe thing to do in this particular case.

is there any place where i can read patch notes, or be notified where its fixed?

seth

Member

Registered: 2012-09-03

Posts: 64,258

Re: After Sudo pacman -Syu network completely broke

In V1del's link?

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V1del

Forum Moderator

Registered: 2012-10-16

Posts: 24,449

Re: After Sudo pacman -Syu network completely broke

More generally, https://kernel.org/ maintains changelogs for stable kernels, you'll want to look and check whether fixes for iwlwifi have made it into 6.14.3 and further.

sepehra90

Member

Registered: 2025-02-10

Posts: 6

Re: After Sudo pacman -Syu network completely broke

More generally, https://kernel.org/ maintains changelogs for stable kernels, you'll want to look and check whether fixes for iwlwifi have made it into 6.14.3 and further.

thanks

sepehra90

Member

Registered: 2025-02-10

Posts: 6

Re: After Sudo pacman -Syu network completely broke

i decided to use Linux-lts, ignoring linux for now till they fix it, it was surprisingly easy to configure