This bug was fixed in the package linux - 5.11.0-34.36
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linux (5.11.0-34.36) hirsute; urgency=medium
* hirsute/linux: 5.11.0-34.36 -proposed tracker (LP: #1941766)
* Server boot failure after adding checks for ACPI IRQ override (LP: #1941657)
- Revert "ACPI: resources:
Have tested the linux-image-5.11.0-33-generic:amd64 5.11.0-33.35 from
proposed and I can verify it fixed the issue for me.
Switched back to the non-proposed 5.11.0-31 kernel and am looking
forward to the new update.
** Tags removed: verification-needed-hirsute
** Tags added:
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
hirsute' to 'verification-done-hirsute'. If the problem still exists,
change the tag
** Changed in: linux (Ubuntu Hirsute)
Status: Confirmed => Fix Committed
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https://bugs.launchpad.net/bugs/1931301
Title:
NIC unavailable after suspend to RAM
To manage
** Changed in: linux (Ubuntu Hirsute)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1931301
Same problem on ubuntu 21.04 here:
*-network
description: Ethernet interface
product: QCA8171 Gigabit Ethernet
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@:08:00.0
logical name: enp8s0
version: 10
serial: 60:02:92:15:4f:ce
This is my network card:
*-network
description: Ethernet interface
product: Killer E2400 Gigabit Ethernet Controller
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@:06:00.0
logical name: enp6s0
version: 10
serial:
Also experienced the same thing on KDE Neon Testing Edition (Ubuntu
20.04) with HWE-edge kernels & Pop!_OS kernels.
https://bugs.launchpad.net/ubuntu/+source/linux-hwe-edge/+bug/1938647
I have these kernels in my system right now, and only 5.11 is affected:
* 5.8.0-63-generic
* 5.11.0.25.27
*
I have the exact same problem using 21.04. After resume it says
something about the network cable being unplugged in the settings menu
under network wired. I have found rebooting is the fastest way (only way
that I know that works) to get back running. My work around is to not
suspend.
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Chris Chiu (mschiu77)
** Also affects: linux (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Hirsute)
Assignee: (unassigned) => Chris Chiu (mschiu77)
** Changed in: linux (Ubuntu Hirsute)
Thanks for the information. Will propose a fix soon.
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Title:
NIC unavailable after suspend to RAM
To manage notifications about this bug go to:
I have the exact same issue with the "alx" module and Network Manager.
But it seems that reloading this module with the "wake on lan" option enabled
resolves the problem (sudo modprobe alx enable_wol = on).
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Sure thing Chris, here's the dmesg log.
Before I forget: thank you for helping me out here, I really appreciate it.
** Attachment added: "5.11.0-24-generic.dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1931301/+attachment/5510164/+files/5.11.0-24-generic.dmesg.txt
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You
I added some debug messages on my kernel to find out when/why the
LINK_STATE_START been toggled off after resume which is not expected. I
add more debug messages in
https://people.canonical.com/~mschiu77/lp1931301/v3/. Could you help me
verify this and post me the dmesg? Thanks.
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Did you change anything else in this kernel? Because it seemed to work
correctly.
** Attachment added: "5.11.0-24-generic.dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1931301/+attachment/5509673/+files/5.11.0-24-generic.dmesg.txt
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this went horribly wrong, since suspend itself did not work at all ;-)
( freezing of tasks failed after 20.010 seconds )
** Attachment added: "5.13.0-051300-generic.dmesg.txt"
The cause is still unknown of why the interface is gone. Could you
download and install the latest amd64/build generic deb files in
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.13/ (see section "How
do I install an upstream kernel?" in
https://wiki.ubuntu.com/Kernel/MainlineBuilds) and check
** Attachment added: "5.11.0-24-generic.dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1931301/+attachment/5509552/+files/5.11.0-24-generic.dmesg.txt
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Thanks to @Sebastian for the dmesg output of original hirsute kernel and
mine. I'll look into why the netif_running get false result during
resume. Will build some customized kernel and still need your help for
verification.
** Attachment added: "5.11.0-22-generic.dmesg.txt"
It might be caused by the patch
https://github.com/torvalds/linux/commit/a4dcfbc4ee2218abd567d81d795082d8d4afcdf6
which is the only difference between 20.10 and 21.04 kernel.
I build a test hirsute kernel in
https://people.canonical.com/~mschiu77/lp1931301/v1/, could you install
and check if the
I also tried a refresh install to fix this, and it did not help
mike@mike-XPS-8930:~$ lspci -nn | grep -i ethernet
04:00.0 Ethernet controller [0200]: Qualcomm Atheros Killer E2400 Gigabit
Ethernet Controller [1969:e0a1] (rev 10)
mike@mike-XPS-8930:~$
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> Trying to ifconfig it down/up results in:
> SIOCSIFFLAGS: No such device
that likely means the kernel driver had some problem waking the device
back up, but there's no dmesg attached to the bug so i don't know. This
is probably a bug in the 'alx' kernel driver (or, problem with the
hardware),
i did a fresh install of 21.04, not an upgrade.
the same problem.
Doesn't seem to be upgrade related.
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Title:
NIC unavailable after suspend to
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: network-manager (Ubuntu)
Status: New => Confirmed
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I just upgraded from 20.10 to 21.04. This affects me too. network card
is unavailable after waking from suspension.
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Title:
NIC unavailable
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