Screen does not wake up from suspend/does not wake up

[Ciro Santilli 六四事件 法轮功]

After upgrading to 21.10 from 21.04 this problem started happening.

It does not happen every time I suspend, and it usually happens after suspending for a longer time. After suspending for a longer time, it tends to happen most of the time.

I can SSH into the computer, so it is just the display that is not turning back on correctly.

Lenovo Thinkpad P51 with an NVIDIA quadro Quadro M1200

journalctl -o short-precise -k -b -1 contained the following messages of interest, which I could not find in other reports:

```
nvidia-modeset: WARNING: GPU:0: Lost display notification (0:0x00000000); continuing.
[24307.640014] NVRM: GPU at PCI:0000:01:00: GPU-18af74bb-7c72-ff70-e447-87d48378ea20
[24307.640018] NVRM: Xid (PCI:0000:01:00): 79, pid=8828, GPU has fallen off the bus.
[24307.640021] NVRM: GPU 0000:01:00.0: GPU has fallen off the bus.
[24328.054022] nvidia-modeset: ERROR: GPU:0: The requested configuration of display devices (LGD (DP-4)) is not supported on this GPU.
[repeats several more times]
[24328.056767] nvidia-modeset: ERROR: GPU:0: The requested configuration of display devices (LGD (DP-4)) is not supported on this GPU.
[24328.056951] nvidia-modeset: ERROR: GPU:0: Failed to query display engine channel state: 0x0000927c:0:0:0x0000000f
[24328.056955] nvidia-modeset: ERROR: GPU:0: Failed to query display engine channel state: 0x0000927c:1:0:0x0000000f
[24328.056959] nvidia-modeset: ERROR: GPU:0: Failed to query display engine channel state: 0x0000927c:2:0:0x0000000f
[24328.056962] nvidia-modeset: ERROR: GPU:0: Failed to query display engine channel state: 0x0000927c:3:0:0x0000000f
[24328.056983] nvidia-modeset: ERROR: GPU:0: DP-4: Failed to disable DisplayPort audio stream-0
[24328.056992] nvidia-modeset: ERROR: GPU:0: Failed to query display engine channel state: 0x0000947d:0:0:0x0000000f
```

I also noticed a

sudo cat /var/crash/_usr_sbin_gdm3.0.uploaded

with:

5bed8a34-5852-11ec-b48c-fa163e102db1

[Ciro Santilli 六四事件 法轮功 (cirosantilli)]

Other bugs about wakeup not working, but I don't reproduce their main error messages:

- https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-460/+bug/1911055
- https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-470/+bug/1946303

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ciro Santilli 六四事件 法轮功 (cirosantilli)]

Repro on 510. Stack traces that happens some times:

Feb 09 06:30:47.610121 ciro-p51 kernel: WARNING: CPU: 0 PID: 18016 at /var/lib/dkms/nvidia/510.47.03/build/nvidia/nv.c:3935 nv_restore_user_channels+0xce/0xe0 [nvidia]

Feb 09 06:30:47.610508 ciro-p51 kernel: Call Trace:
Feb 09 06:30:47.610527 ciro-p51 kernel: <TASK>
Feb 09 06:30:47.610547 ciro-p51 kernel: nv_set_system_power_state+0x22b/0x3e0 [nvidia]
Feb 09 06:30:47.610566 ciro-p51 kernel: nv_procfs_write_suspend+0xe9/0x140 [nvidia]
Feb 09 06:30:47.610598 ciro-p51 kernel: proc_reg_write+0x5a/0x90
Feb 09 06:30:47.610619 ciro-p51 kernel: ? __cond_resched+0x1a/0x50
Feb 09 06:30:47.610637 ciro-p51 kernel: vfs_write+0xc3/0x250
Feb 09 06:30:47.610658 ciro-p51 kernel: ksys_write+0x67/0xe0
Feb 09 06:30:47.610675 ciro-p51 kernel: __x64_sys_write+0x19/0x20
Feb 09 06:30:47.610693 ciro-p51 kernel: do_syscall_64+0x61/0xb0
Feb 09 06:30:47.610709 ciro-p51 kernel: ? exit_to_user_mode_prepare+0x37/0xb0
Feb 09 06:30:47.610728 ciro-p51 kernel: ? syscall_exit_to_user_mode+0x27/0x50
Feb 09 06:30:47.610746 ciro-p51 kernel: ? __x64_sys_newfstatat+0x1c/0x20
Feb 09 06:30:47.610765 ciro-p51 kernel: ? do_syscall_64+0x6e/0xb0
Feb 09 06:30:47.610796 ciro-p51 kernel: ? syscall_exit_to_user_mode+0x27/0x50
Feb 09 06:30:47.610813 ciro-p51 kernel: ? do_syscall_64+0x6e/0xb0
Feb 09 06:30:47.610842 ciro-p51 kernel: ? asm_exc_page_fault+0x8/0x30
Feb 09 06:30:47.610860 ciro-p51 kernel: entry_SYSCALL_64_after_hwframe+0x44/0xae

Feb 09 06:30:47.611093 ciro-p51 kernel: WARNING: CPU: 0 PID: 18016 at /var/lib/dkms/nvidia/510.47.03/build/nvidia/nv.c:4152 nv_set_system_power_state+0x2d0/0x3e0 [nvidia]

Feb 09 06:30:47.611469 ciro-p51 kernel: nv_procfs_write_suspend+0xe9/0x140 [nvidia]
Feb 09 06:30:47.611484 ciro-p51 kernel: proc_reg_write+0x5a/0x90
Feb 09 06:30:47.611499 ciro-p51 kernel: ? __cond_resched+0x1a/0x50
Feb 09 06:30:47.611517 ciro-p51 kernel: vfs_write+0xc3/0x250
Feb 09 06:30:47.611533 ciro-p51 kernel: ksys_write+0x67/0xe0
Feb 09 06:30:47.611550 ciro-p51 kernel: __x64_sys_write+0x19/0x20
Feb 09 06:30:47.611568 ciro-p51 kernel: do_syscall_64+0x61/0xb0
Feb 09 06:30:47.611597 ciro-p51 kernel: ? exit_to_user_mode_prepare+0x37/0xb0
Feb 09 06:30:47.611615 ciro-p51 kernel: ? syscall_exit_to_user_mode+0x27/0x50
Feb 09 06:30:47.611632 ciro-p51 kernel: ? __x64_sys_newfstatat+0x1c/0x20
Feb 09 06:30:47.611647 ciro-p51 kernel: ? do_syscall_64+0x6e/0xb0
Feb 09 06:30:47.611665 ciro-p51 kernel: ? syscall_exit_to_user_mode+0x27/0x50
Feb 09 06:30:47.611680 ciro-p51 kernel: ? do_syscall_64+0x6e/0xb0
Feb 09 06:30:47.611698 ciro-p51 kernel: ? asm_exc_page_fault+0x8/0x30
Feb 09 06:30:47.611715 ciro-p51 kernel: entry_SYSCALL_64_after_hwframe+0x44/0xae

[Ciro Santilli 六四事件 法轮功 (cirosantilli)]

I should also mention, I'm seeing a bunch of non-nvidia ACPI errors of type:

Feb 09 06:58:43.863108 ciro-p51 kernel: ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20210331/nsarguments-61)
Feb 09 06:58:44.131354 ciro-p51 kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.EC.HKEY.DEVT.PEGS], AE_NOT_FOUND (20210331/psargs-330)
Feb 09 06:58:44.131544 ciro-p51 kernel:
Feb 09 06:58:44.131575 ciro-p51 kernel: No Local Variables are initialized for Method [DEVT]
Feb 09 06:58:44.131609 ciro-p51 kernel:
Feb 09 06:58:44.131631 ciro-p51 kernel: Initialized Arguments for Method [DEVT]: (1 arguments defined for method invocation)
Feb 09 06:58:44.131663 ciro-p51 kernel: Arg0: 00000000e4c8db84 <Obj> Integer 00000000000000D3
Feb 09 06:58:44.131689 ciro-p51 kernel:
Feb 09 06:58:44.131715 ciro-p51 kernel: ACPI Error: Aborting method \_SB.PCI0.LPCB.EC.HKEY.DEVT due to previous error (AE_NOT_FOUND) (20210331/psparse-529)
Feb 09 06:58:44.131739 ciro-p51 kernel: ACPI Error: Aborting method \_SB.PCI0.LPCB.EC._Q4F due to previous error (AE_NOT_FOUND) (20210331/psparse-529)
Feb 09 06:58:44.335085 ciro-p51 kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.EC.HKEY.DEVT.PEGS], AE_NOT_FOUND (20210331/psargs-330)
Feb 09 06:58:44.335230 ciro-p51 kernel:
Feb 09 06:58:44.335459 ciro-p51 kernel: No Local Variables are initialized for Method [DEVT]

that could be potential root cause. Gonna try to disable nvidia now and see.

[Ciro Santilli 六四事件 法轮功 (cirosantilli)]

Dumping a bit more debug log before I forget:

I disabled NVIDIA from the software & updates. If I try to suspend:

- it immediately wakes up into lock screen
- I can't login anymore: after password, goes into black kernel log screen as in boot

That was in Wayland, the new default. So I blacklist wayland, reboot to X11, and now when trying to suspend:

- it immediately wakes up into lock screen
- but I can login

Possible threads:

- https://askubuntu.com/questions/1151709/suspend-not-working-in-ubuntu-18-04-and-19-04
- https://askubuntu.com/questions/1133919/ubuntu-18-04-2-immediately-wakes-up-from-suspend

Notably https://askubuntu.com/a/1363662/52975 says CUDA might still be a problem! So I now purged Everything from NVIDIA, I noticed that I had nvidia-opencl-dev:amd64 installed ii, and the graphics stuff installed rc, and immediately after purge suspend works again on X11!

[Ciro Santilli 六四事件 法轮功 (cirosantilli)]

Then, re-enabled Wayland with NVIDIA purged, and suspend works there.

Then, re-installed and reenabled NVIDIA 510 (which blakclists Wayland and puts me in X11 since no Wayland support yet), and boom problem is back exactly as before, same nv_* traces and ACPI errors (I didn't see the ACPI errors when I had disabled NVIDIA, so it looks like it is causing those as well).

So 100% certain now that the bug is in NVIDIA drivers.

[Ciro Santilli 六四事件 法轮功 (cirosantilli)]

OK, now noticed that my error lines are exactly the same as: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-470/+bug/1946303 it's just I wasn't getting the logs consistently before I had updated my firmware. Let's close as dupe.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.