Thread with 7 posts

jump to expanded post

I don't know what happened but sometime in the past week Something (a software update?) happened to our Debian 13 install and now whenever our laptop goes to sleep it does not wake up again, and this is just suffering

Open thread at this post

thank you to the person who suggested I do a kernel rollback, I should've tried that

I chose the old kernel 6.12.57 in the GRUB menu and now the laptop can go to sleep and resume as normal

/var/log/apt/history.log shows the 6.12.63 kernel was installed at "2026-01-16 04:38:59"

Open thread at this post

apparently kernel rollbacks are not a standard process, so here's what I did:

  • sudo apt-mark hold linux-image-6.12.57+deb13-amd64:amd64 to prevent old kernel being removed later
  • sudo grub-mkconfig to get a list of grub menu entries and submenus
  • sudo vim /etc/default/grub, changing GRUB_DEFAULT="Advanced options for Debian GNU/Linux>Debian GNU/Linux, with Linux 6.12.57+deb13-amd64" (yes, you have to write out the full name of the submenu and the menu item, with > between them…)
  • sudo update-grub to apply the changes to /etc/default/grub
Open thread at this post

ahhhh someone in the Debian support IRC channel helpfully pointed out that since this is a very new laptop, I should probably try the backported newer kernel version (sudo apt install linux-image-amd64/trixie-backports). now we're on 6.17.13 and it works much better!

Open thread at this post

not only does suspend work on this newer kernel version, but this laptop can finally β€œtruly” go to sleep; when a ThinkPad is sleeping, the LED in the logo and on the power button is supposed to gently pulse. that wasn't happening before!

Open thread at this post