Re: Problems with amdgpu and hibernation from kernel 6.17.0

On martedì 17 marzo 2026 01:22:14 Ora standard dell’Europa centrale D. Ben 
Knoble wrote:
> On Sun, Mar 15, 2026 at 11:22 AM Stefano Crocco <[email protected]> 
wrote:
> > Hello to everyone,
> > since kernel version 6.17.0, I'm having problems with hibernation on my
> > desktop system, while everything works fine on my laptops.
> > 
> > The problem is that after starting hibernation (either using KDE logout
> > screen or by writing "disk" on /sys/power/state), the screen goes black
> > but the system doesn't actually shut down and I need to press the reset
> > button to restart the system. I tried leaving it alone for half an hour,
> > but the situation didn't change.
> > 
> > I tried debugging the issue according to https://www.kernel.org/doc/html/
> > latest/power/basic-pm-debugging.html and I found out that the problem
> > seems to be caused by the amdgpu module (or by one of the modules it
> > requires), which I need for my Radeon AMD Radeon RX 6700 XT video card.
> > 
> > Just to be on the safe side, I tried switching from gentoo-kernel with
> > custom configuration to gentoo-kernel-bin, but unfortunately nothing
> > changed.
> > 
> > I tried searching the web for similar issues, but I found nothing. Has
> > anyone experienced this kind of problem? If so, were you able to solve
> > it? Is there a way to get more information about what is happening?
> > 
> > Tbanks in advance
> > 
> > Stefano
> 
> I'm a novice when it comes to the kernel, but I had some power issues
> on my new rig when setting it up.
> 
> My notes say that:
> - putting reboot=acpi on the kernel command line helped
> - I disabled hibernation (CONFIG_HIBERNATION), since it's not
> recommended for my RAM size (128GiB) [1].
> 
> [1]:
> https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Disks#What_about_s
> wap_space.3F
> 
> I also disabled apmd from my OpenRC configurations, since it was
> consistently failing to come up (and I don't need it with acpid).
> 
> I haven't actually tried any of the suspend modes though. I mostly
> just i3lock and turn off the monitor, heh… I do need to get some sort
> of idle lock set up at some point.

Thanks for the suggestions. Unfortunately, adding the reboot=acpi didn't help 
and I do want hibernation, as I want the system to restart as I left it but I 
don't want to use suspend as (unless I'm mistaken) it requires the system to 
remain in standby instead of being powered off and I don't like it.

Stefano