ThinkPad T14 Gen 5 (Intel): Issues with sleep/suspend on Fedora 40 and 41

[anotheruser (Mark)]

@senkorasic

If I do rmmod e1000e, or disable Wake-On-Lan (with ethtool -s <dev> wol d) and retry the same echo command, the laptop goes to suspend (the red dot on the thinkpad logo twinkles).

this looks like 2306163 – Regression in Kernel 6.10 causes e1000e to prevent suspend if there is no active ethernet connection on Meteor Lake CPU
It seems that a patch is queued for kernel 6.11.3