Re: Thinkpad T61 display won't wake from hibernate

From: Ian Smith <smithi_at_nimnet.asn.au>
Date: Sun, 04 Dec 2022 19:14:50 UTC 
On 4 December 2022 5:10:42 pm AEDT, klu <kludev@gmail.com> wrote:
 > Hi Ian thanks for the reply! setting
 > 
 > sysctl hw.acpi.reset_video=1
 > 
 > does make a difference. Although now upon resume, I got a garbled
 > screen 
 > that reflects my mouse move. Also tried hibernate and resume without 
 > entering X, same effect.

Sounds like some progress, another clue for others anyway.

Which video driver are you loading, precisely?  How and when booting?

[ FTR it's not hibernate, but suspend.
In all modern cases FreeBSD doesn't do hibernation - suspend to disk (S4) where power is switched off after saving state - just suspend to RAM (S3), using a small amount of power keeping dynamic RAM refreshed. ]

I can now only suggest a verbose boot without starting X, suspending, resuming then rebooting or whatever you have to do, then either putting up that section of /var/log/messages from the BOOT marker till restart for download somewhere - it's surely too big to attach to the list - or email it to me and I'll put it up here.

cheers