I found something interesting today whilst trying to sort out another
bug report I filed about the M5000M graphics card not being initialized
correctly....

In 22.04 if I use the Nvidia driver (550), my laptop shuts down after
logging in with the lid shut (2 out of 3 attempts). If I use the X.Org
video driver (noveau) I never have shutdown issues logging in with
22.04.

With 24.04 however, the X.Org video driver does not initialize the
M5000M graphics adapter correctly. The Nvidia 550 driver did get the
M5000M working correctly but I was still having this logging in shutdown
issue with the lid shut.

I think this may be indicating some sort of timing issue during the
start up phase?

** Summary changed:

- 24.04.1 Suspends\Hibernates after desktop login using ext keyboard\monitor 
+ 22.04 & 24.04.1 Suspend\Hibernate after desktop login using ext 
keyboard\monitor

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https://bugs.launchpad.net/bugs/2098370

Title:
  22.04 & 24.04.1 Suspend\Hibernate after desktop login using ext
  keyboard\monitor

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Recently upgraded (side by side install) from 22.04 (fully working daily 
driver OS) to 24.4.1.
  My normal environment is a Dell precision M6700 laptop on a docking station 
with an external USB keyboard and external DP LCD monitor. Always powered from 
AC. laptop lid is always shut.

  Usual startup procedure as follows --> power on laptop via docking
  station power on button, (laptop boots grub2; hidden from view since
  lid is shut), eventually after 20 seconds DP monitor shows Ubuntu
  login prompt. I enter name\password and after 10 seconds get Ubuntu
  desktop on DP monitor. All well and good.

  However with 24.4.1 everything is the same up to the Ubuntu login prompt. 
After entering name\password the laptop then suspends\hibernates (fans stop, 
USB keyboard off, DP monitor no signal).
  If I then open the laptop lid slightly the laptop wakes up. Closing the 
laptop lid I get the logged in Ubuntu desktop on the DP monitor.

  How can I find out what is causing the laptop to go into
  suspend\hibernate following login when its lid is closed?

  No LSB modules are available.
  Description:  Ubuntu 24.04.2 LTS
  Release:      24.04
  Linux main-Precision-M6700 6.8.0-52-generic #53-Ubuntu SMP PREEMPT_DYNAMIC 
Sat Jan 11 00:06:25 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

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