** Description changed:

  I'm raising this bug to report an issue (possible regression) in the
  7.0.0-38 kernel that causes resume from suspend to fail. Relevant
  details below, and extensive logs attached.
  
  Hardware:
  - NVIDIA GTX 1080
  - Zorin OS 18.1 (based on Ubuntu Noble)
  - NVIDIA 580.178.04
  
  Regression:
  - Suspend/resume works on 7.0.0-34
  - Suspend/resume fails on 7.0.0-38
  
  Observed behavior:
  - System enters suspend
  - Journal shows "PM: suspend entry (deep)"
  - System never resumes
  - Requires hard reset
  
  Testing performed:
  - Booted into 7.0.0-34 - suspend/resume work as-expected
  - Boot into 7.0.0-38 - suspend works, fails to resume
  - Boot into 24.04 live USB - suspend/resume work (though other, unrelated, 
issues are present)
  
  Regression: Yes
  
- Last known good:
+ Known-good kernel:
  7.0.0-34-generic
  
- First known bad:
+ Known-bad kernel:
  7.0.0-38-generic
  
- Reproduction rate:
- 100%
+ Hardware:
+ NVIDIA GTX 1080
  
- Steps:
- 1. Boot 7.0.0-38-generic
- 2. Login
- 3. Execute: systemctl suspend
- 4. System enters deep sleep
- 5. Attempt wake using keyboard, mouse, or power button
- 6. System never resumes
- 7. Hard reset required
+ Tests performed:
+ - deep suspend: fails
+ - s2idle suspend: fails
+ - identical hardware and userspace
+ - previous kernel resumes correctly
  
- Control test:
- Boot 7.0.0-34-generic
- Repeat same steps
- Suspend/resume works normally
+ Result:
+ Regression introduced between 7.0.0-34 and 7.0.0-38.
  
  Expected behavior:
  - Resume successfully from suspend on 7.0.0-38 as on 7.0.0-34

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https://bugs.launchpad.net/bugs/2170904

Title:
  Regression: System hangs on resume from suspend with 7.0.0-38-generic,
  works correctly with 7.0.0-34-generic

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