On 9/24/2026 12:34 AM, Thorsten Leemhuis wrote:
On 9/15/26 10:57, Javier Herrera wrote:

Since commit 578294b8b60d ("e1000e: Reconfigure PLL clock gate timeout and
re-enable K1 on Meteor Lake") the integrated I219-LM in a Lenovo ThinkPad
P14s Gen 5 (Intel variant, Core Ultra 9 185H) shows constant packet loss
and erratic latency on the wired link. Wi-Fi and a USB-C RTL8152 adapter on
the same cable, switch and router are fine, so the network itself is not
the problem.

Setting the private flag "disable-k1" fixes it immediately, so this looks
like another system where the PLL clock gate reconfiguration is not enough
and the DMI quirk table introduced by that commit should be extended.
[...]

Dima or e1000e maintainers, could you please submit and upstream a quirk
entry to resolve this regression? Ideally with a stable tag? Javier

Dima is out on vacation at the moment; I'll prepare a patch to add this entry to the quirks.

Thanks,
Tony

afaics provided everything needed for this. Reminder, Linus rule of
thumb wrt to regressions is "generally fix them within a week,
preferably before the next rc.":
https://www.kernel.org/doc/html/latest/process/handling-regressions.html#on-how-quickly-regressions-should-be-fixed

Or is there some reason why the quirk entry is a bad idea here?

Sending this as things looked stalled from here; or was there some
progress to resolve this already which I missed?

Ciao, Thorsten

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