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The Problem in Short
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The System
Dell Precision T7500:
OS: Debian Stretch (running Proxmox)
CPUs: 2 x Xeon X5660
RAM: 12GB per CPU (24GB Total)
SWAP: 16GB
STORAGE: 2 x 1TB in raid1 (zfs file system)
GRAPHICS: Nvidia Quadro K5000
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Things I've Tried
Tried adding
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resume=/dev/zvol/rpool/swap
Tried using
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systemctl suspend
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pm-suspend
Looked into the journalctl logs - nothing of value (can still post that if needed)
Also looked into the syslogs, kernel logs, and pm logs - nothing of value either (can also post if needed) | Shows that suspend is indeed successful, although it does not show anything about the recovery
Also tried using uswsusp and using
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s2ram
Tried removing the graphics card to see if it's an issue loading the drivers or something like that - same results | could also be that maybe the drivers still were loaded, not sure though
Looked into the bios to make sure that nothing is disabling suspend mode - everything should be set there
Tried limiting the CPU C-State to C2 - same issue
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Other Comments
Thanks for helping me out here. If you need any logs then let me know. I will gladly provide them. Thanks!