ThinkPad T1g Gen 8 on Ubuntu 26.04: suspend resumes to black screen

Graphics / Linux Linux
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1

I am seeing a suspend/resume issue on my laptop. When the system goes into suspend, it later comes back to a black screen. I cannot
recover the display normally and usually need to force reboot.

System information:

  • Laptop: Lenovo ThinkPad T1g Gen 8
  • Machine type: 21TD000MUS
  • Ubuntu: 26.04 (Resolute Raccoon, development branch)
  • Kernel: 7.0.0-10-generic
  • CPU: Intel Core Ultra 9 285H

Graphics:

  • Intel integrated GPU: Intel Arrow Lake-P [Arc Pro 130T/140T]
  • NVIDIA discrete GPU: GeForce RTX 5070 Max-Q / Mobile
  • NVIDIA driver: 595.58.03

Suspend-related details:

  • /sys/power/mem_sleep shows only: [s2idle]
  • Kernel log says: “Low-power S0 idle used by default for system suspend”

Relevant observations:

  • I can see suspend handling starting in the logs, for example:
    • “rtkit-daemon: Handling system-suspend using logind.”
  • But I do not see a clean resume sequence afterward.
  • This matches the actual behavior: after suspend, the machine returns to a black screen and I often need to hard reboot.

There are also NVIDIA-related messages in the logs, including:

  • “nvidia-modeset: WARNING: GPU:0: Correcting number of heads for current head configuration”
  • “nvidia … [drm] No compatible format found”
  • “nvidia … [drm] Cannot find any crtc or sizes”

uname -a:
Linux yangshirong 7.0.0-10-generic #10-Ubuntu SMP PREEMPT_DYNAMIC Thu Mar 19 10:24:42 UTC 2026 x86_64 GNU/Linux

lsb_release -a:
Distributor ID: Ubuntu
Description: Ubuntu Resolute Raccoon (development branch)
Release: 26.04
Codename: resolute

lspci | grep -Ei ‘vga|3d|display’:
00:02.0 VGA compatible controller: Intel Corporation Arrow Lake-P [Arc Pro 130T/140T] (rev 03)
01:00.0 VGA compatible controller: NVIDIA Corporation GB206M [GeForce RTX 5070 Max-Q / Mobile] (rev a1)

nvidia-smi:
Driver Version: 595.58.03
CUDA Version: 13.2

2

Unfortunate, but not surprising. Try fedora 42; hope this helps!

3

Same problem. Also on a Thinkpad t1g gen 8. But running Fedora 44 (wayland only). SSH re-enables when opening the lid of the laptop, but screen is black, keyboard seems unresponsive (I don’t see my fingerprint sensor activate to for login, and blindly entering my login password doesn’t have any effect).

/sys/power/mem_sleep also says [s2idle]
uname -a:
Linux thoughtful-penguin 7.0.9-202.fc44.x86_64 #1 SMP PREEMPT_DYNAMIC Mon May 18 22:33:24 UTC 2026 x86_64 GNU/Linux

nvidia-smi:
NVIDIA-SMI 595.71.05, Driver Version: 595.71.05, CUDA Version: 13.2

4

From linked forms

https://forums.linuxmint.com/viewtopic.php?t=346222

There’s a linux specific suspend option in BIOS
BIOS > Config > Power > “Sleep State” select “Linux”

I did not have this in my BIOS however. Sounds like some models have it, some don’t.

Created a ticket with lenovo

If you lock your computer (super+L) does your screen freeze? - also happening to me, not sure if related.