Re: Problems with amdgpu and hibernation from kernel 6.17.0

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_swap_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.

-- 
D. Ben Knoble