Beelink CS-George I can confirm I experience the exact same issue on my GTR 9 Pro unit under NixOS Linux (kernel 6.17.1): it can enter Sleep (S0) state ok and wakes up from it but the following fan curve profile gets a much higher PWM rpm level making it too loud.
❌ However, as per your suggesttion, alternatively I did try to use the Hibernation (S4) state but it doesn’t seem to be working well at all. Whenever it wakes up I can notice that it previously did an unclean shutdown/hibernation stage and the boot filesystem check founds several orphaned inodes and it is required to recover the journal to clear them, every time. Not good!
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] fsck (busybox 1.36.1)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] [fsck.ext4 (1) -- /mnt-root/] fsck.ext4 -a /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: recovering journal
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 24544606 (uid=1000, gid=100, mode=0100644, size=16875624)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 24554839 (uid=1000, gid=100, mode=0100644, size=840196)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 75104325 (uid=1000, gid=100, mode=0100600, size=0)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 75105109 (uid=1000, gid=100, mode=0100600, size=0)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 24514507 (uid=1000, gid=100, mode=0100644, size=16875624)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 75104327 (uid=1000, gid=100, mode=0100600, size=0)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 75104733 (uid=1000, gid=100, mode=0100600, size=0)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 75104836 (uid=1000, gid=100, mode=0100600, size=0)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 75104840 (uid=1000, gid=100, mode=0100600, size=648854)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 75105075 (uid=1000, gid=100, mode=0100600, size=0)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 75104310 (uid=1000, gid=100, mode=0100600, size=1248)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: Clearing orphaned inode 75104312 (uid=1000, gid=100, mode=0100600, size=5127)
out 14 16:27:43 beelink-gtr9pro stage-1-init: [Tue Oct 14 15:27:42 UTC 2025] /dev/disk/by-uuid/69c4a952-bf32-4988-8377-db9368e748c3: clean, 2589336/122028032 files, 145343805/488111247 blocks
Attached the full system logs with entering the Hibernate (S4) state and the following wake up boot from it for your analysis:
We will continue to optimize power management through future system firmware updates. If an upgrade plan that supports wake-up from S0 mode becomes available, we will notify you via official channels as soon as possible.
If you still encounter problems with wake-up when using Hibernation/Shutdown mode, or if you have other operational questions, please feel free to contact us at any time—we will continue to assist you!
Could we please have an updated BIOS/UEFI fully supporting both Sleep (S0) and the Hibernatation (S4) states in a near future?