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SubjectRe: powersaving-related hangs on T460s
> I tried 4.15-git on my Thinkpad T460s laptop. It is working but I have 
> problems waking up the computer after it has been idle.
>
> There should be no suspend (to keep network connections alive) when the
> laptop is on AC power, even when the lid is closed. In dmesg, I have
> seen no indication of suspend happening. It is configured to just lock
> the screen when the lid is closed.
>
> Normally, I have to press a key after opening the lid to unblank the
> screen and get to password prompt. Usually this works but sometimes
> there is no response - power LED is on that is all, holding down power
> button is the only way out.
>
> Sometimes it happens overnight, sometimes it is alive in the morning. It
> almost never happens with short 5-15 minutes breaks but it can happen
> for about hour long breaks. There is no reliable way to reproduce the
> problem.

I seem to have found a better reproducer - when running on battery, it
will hang after some minutes, with screen on. It just hangs.

--
Meelis Roos (mroos@linux.ee)

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