The laptop used to resume correctly until about a month ago. Since then, sometimes, it freezes on resume.
Setup:
- Laptop Model: Lenovo ThinkPad P52
- Processor: 8th Generation Intel® Core™ i7-8750H Processor (2.20 GHz, up to 4.10 GHz with Turbo Boost, 6 Cores, 12 Threads, 9 MB Cache)
- Display Type: 15.6" FHD (1920 x 1080) IPS, anti-glare, 300 nits
- Memory: 32 GB DDR4 2400MHz (2 x 16 GB)
- Hard Drive: 1 TB PCIe SSD
- Graphics: NVIDIA® Quadro® P1000 4GB GDDR5
- Keyboard: Backlit with Number Pad - US English
- Battery: 6 Cell Li-Ion 90Wh
- Camera: 720p HD
- Fingerprint Reader: Fingerprint Reader
- Wireless: Intel® 9560 802.11AC (2 x 2) & Bluetooth® 5.0
- Operating System: Qubes OS 4.2.4
[dom0] uname -a: Linux dom0 6.12.39-1.qubes.fc37.x86_64 #1 SMP PREEMPT_DYNAMIC Tue Jul 22 05:09:16 GMT 2025 x86_64 x86_64 x86_64 GNU/Linux- Screen lock: i3lock
Here is the sequence of events:
- The system is sleeping. The power button LED blinks slowly.
- I press the power button
- The power button LED stops blinking and stays on.
a) Here is what happens after when it resumes correctly:
- The wifi LED turns on
- The disk usage LED starts blinking
- The lock screen wallpaper shows up
- I can enter my password
b) Here is what happens after when it does not resume correctly:
- The wifi LED stays off
- The disk usage LED stays off
- The screen stays black
- I cannot enter my password
- Pressing Ctrl+Alt+F<number> does not change TTY
- Pressing NumLock does not change the NumLock LED
- Pressing Fn+FnLock does change the FnLock LED
- I have to press the Power button for several seconds to reset.
Questions:
- What could be the cause of this issue?
- I have no idea of what could cause this problem. What should I do to gain more insight about this problem?
- How do I fix this problem?