Hey Sergio, On 25/03/20 08:49AM, Sergio Callegari wrote: > Might be able to test on the distro built kernels that basically trace the > releases and stable point releases. This should start helping bracketing the > problem a bit better as a starter. But it is going to take a lot of time, > since the issue happens when the machine fails to get out of hibernation, > that is not always, and obvioulsy I need to try avoiding this situation as > much as possible. Which linux distro are you using? If you're on Arch Linux I can provide you with prebuilt images for the bisection :) > > Incidentally, the machine seems to hibernate-resume just fine. It is when I > suspend-then-hibernate that I get the failures. > > Before contacting the network driver authors, I just wanted to query whether > the issue is likely in it or in the power-management or pcie subsystems. > > Thanks, > Sergio Cheers, Chris > > On 20/03/2025 00:54, Greg KH wrote: > > On Wed, Mar 19, 2025 at 08:38:52PM +0100, Sergio Callegari wrote: > > > There is a nasty regression wrt mt7921e in the last LTS series (6.12). If > > > your computer crashes or fails to get out of hibernation, then at the next > > > boot the mt7921e wifi does not work, with dmesg reporting that it is unable > > > to change power state from d3cold to d0. > > > > > > The issue is nasty, because rebooting won't help. > > > > Can you do a 'git bisect' to track down the issue? Also, maybe letting > > the network driver authors know about this would be good. > > > > thanks, > > > > greg k-h > >
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