[Bug 1931546] Re: No ethernet with alx driver upon wake up in 5.11

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: linux (Ubuntu)
Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1931546

Title:
No ethernet with alx driver upon wake up in 5.11

Status in linux package in Ubuntu:
Confirmed

Bug description:
alx driver does not correctly restart the ethernet upon waking up. The
bug (new behavior) has been introduced somewhere in the 5.10 kernel
series (indirectly?) and got fixed for 5.12 and 5.13. However, no
backport for 5.11 (Ubuntu 21.04) exists.

The fix:
https://github.com/gregkh/linux/commit/a4dcfbc4ee2218abd567d81d795082d8d4afcdf6#diff-641218b365d6949b9f2bbc730a547b421c127283cd0a5b5fd85c07cc6729bb81

Using 5.12 solves the issue due to an implemented fix:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.12.9/

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