bally12345

Just checked the logs and it hasn't occured again since 1 November and it does look like NUT was updated too
Nov 1 09:25:44 Server plugin-manager: executing inline script: /bin/bash '/tmp/inline1-nut-dw.sh' Nov 1 09:25:48 Server upsmon[8786]: Signal 15: exiting Nov 1 09:25:48 Server upsd[8783]: User [email protected] logged out from UPS [ups] Nov 1 09:25:48 Server upsd[8783]: mainloop: Interrupted system call Nov 1 09:25:48 Server upsd[8783]: Signal 15: exiting Nov 1 09:25:50 Server usbhid-ups[8776]: Signal 15: exiting Nov 1 09:25:52 Server plugin-manager: checking: /boot/config/plugins/nut-dw/nut-2.8.4-x86_64-2master.ssl31.txz - MD5 Nov 1 09:25:52 Server plugin-manager: skipping: /boot/config/plugins/nut-dw/nut-2.8.4-x86_64-2master.ssl31.txz already exists Nov 1 09:25:52 Server plugin-manager: checking: /boot/config/plugins/nut-dw/nut-2.8.4-x86_64-1stable.ssl31.txz - MD5 Nov 1 09:25:52 Server plugin-manager: skipping: /boot/config/plugins/nut-dw/nut-2.8.4-x86_64-1stable.ssl31.txz already exists Nov 1 09:25:52 Server plugin-manager: checking: /boot/config/plugins/nut-dw/nut-2.8.3-x86_64-2stable.ssl31.txz - MD5 Nov 1 09:25:53 Server plugin-manager: skipping: /boot/config/plugins/nut-dw/nut-2.8.3-x86_64-2stable.ssl31.txz already exists Nov 1 09:25:53 Server plugin-manager: checking: /boot/config/plugins/nut-dw/nut-2.8.2-x86_64-1stable.ssl31.txz - MD5 Nov 1 09:25:53 Server plugin-manager: skipping: /boot/config/plugins/nut-dw/nut-2.8.2-x86_64-1stable.ssl31.txz already exists Nov 1 09:25:53 Server plugin-manager: checking: /boot/config/plugins/nut-dw/nut-2.7.4.20200318-x86_64-1.txz - MD5 Nov 1 09:25:53 Server plugin-manager: skipping: /boot/config/plugins/nut-dw/nut-2.7.4.20200318-x86_64-1.txz already exists Nov 1 09:25:53 Server plugin-manager: executing inline script: /bin/bash '/tmp/inline7-nut-dw.sh' Nov 1 09:25:53 Server plugin-manager: checking: /boot/config/plugins/nut-dw/net-snmp-5.9.4-x86_64-1.txz - MD5 Nov 1 09:25:53 Server plugin-manager: skipping: /boot/config/plugins/nut-dw/net-snmp-5.9.4-x86_64-1.txz already exists Nov 1 09:25:53 Server plugin-manager: running: upgradepkg --install-new /boot/config/plugins/nut-dw/net-snmp-5.9.4-x86_64-1.txz Nov 1 09:25:53 Server plugin-manager: checking: /boot/config/plugins/nut-dw/libmodbus-3.1.11-x86_64-1nut_slack15.1.txz - MD5 Nov 1 09:25:53 Server plugin-manager: skipping: /boot/config/plugins/nut-dw/libmodbus-3.1.11-x86_64-1nut_slack15.1.txz already exists Nov 1 09:25:53 Server plugin-manager: running: upgradepkg --install-new /boot/config/plugins/nut-dw/libmodbus-3.1.11-x86_64-1nut_slack15.1.txz Nov 1 09:25:53 Server plugin-manager: creating: /boot/config/plugins/nut-dw/nut-plugin-2025.11.01-x86_64-2.txz - downloading from URL https://raw.githubusercontent.com/desertwitch/NUT-unRAID/master/archive/nut-plugin-2025.11.01-x86_64-2.txz Nov 1 09:25:53 Server plugin-manager: checking: /boot/config/plugins/nut-dw/nut-plugin-2025.11.01-x86_64-2.txz - MD5 Nov 1 09:25:53 Server plugin-manager: running: upgradepkg --install-new /boot/config/plugins/nut-dw/nut-plugin-2025.11.01-x86_64-2.txz Nov 1 09:25:54 Server plugin-manager: executing inline script: /bin/bash '/tmp/inline23-nut-dw.sh' Nov 1 09:25:55 Server rc.nut: Writing NUT configuration... Nov 1 09:25:57 Server rc.nut: Updating permissions for NUT... Nov 1 09:25:57 Server rc.nut: Checking if the NUT Runtime Statistics Module should be enabled... Nov 1 09:25:57 Server rc.nut: Disabling the NUT Runtime Statistics Module... Nov 1 09:25:58 Server rc.nut: WARNING: NUT was user-configured to disable power management for all USB devices. Nov 1 09:25:58 Server rc.nut: WARNING: NUT is now forcing all USB devices to permanent [on] power state as requested... Nov 1 09:25:58 Server rc.nut: Network UPS Tools upsdrvctl - UPS driver controller 2.8.4 release Nov 1 09:25:58 Server rc.nut: Network UPS Tools 2.8.4 release - Generic HID driver 0.67 Nov 1 09:25:58 Server rc.nut: USB communication driver (libusb 1.0) 0.50 Nov 1 09:25:58 Server rc.nut: interrupt pipe disabled (add 'pollonly' flag to 'ups.conf' to get rid of this message) Nov 1 09:25:58 Server rc.nut: Using subdriver: APC HID 0.100 Nov 1 09:25:58 Server rc.nut: Listening on socket /var/run/nut/usbhid-ups-ups Nov 1 09:25:58 Server usbhid-ups[4058256]: Listening on socket /var/run/nut/usbhid-ups-ups Nov 1 09:25:58 Server usbhid-ups[4058258]: Startup successful Nov 1 09:25:59 Server rc.nut: Network UPS Tools upsd 2.8.4 release Nov 1 09:25:59 Server rc.nut: listening on 0.0.0.0 port 3493 Nov 1 09:25:59 Server upsd[4058269]: listening on 0.0.0.0 port 3493 Nov 1 09:25:59 Server upsd[4058269]: Connected to UPS [ups]: usbhid-ups-ups Nov 1 09:25:59 Server usbhid-ups[4058258]: sock_connect: enabling asynchronous mode (auto) Nov 1 09:25:59 Server upsd[4058269]: Found 1 UPS defined in ups.conf Nov 1 09:25:59 Server rc.nut: Connected to UPS [ups]: usbhid-ups-ups Nov 1 09:25:59 Server rc.nut: Found 1 UPS defined in ups.conf Nov 1 09:25:59 Server upsd[4058270]: Startup successful Nov 1 09:25:59 Server rc.nut: Network UPS Tools upsmon 2.8.4 release Nov 1 09:25:59 Server rc.nut: UPS: [email protected] (primary) (power value 1) Nov 1 09:25:59 Server rc.nut: Using power down flag file /etc/nut/no_killpower Nov 1 09:25:59 Server upsmon[4058276]: Startup successful Nov 1 09:25:59 Server upsmon[4058276]: Warning: running as one big root process by request (upsmon -p) Nov 1 09:25:59 Server upsd[4058270]: User [email protected] logged into UPS [ups] Nov 1 09:25:59 Server plugin-manager: nut-dw.plg updatedWill keep an eye on it just in case it happens again.

Narrowed it down to CoreFreq plugin, removed it and that sorted everything!

Ok got it working again... I had Intel i915 SR-IOV (beta) app installed, removed this and rebooted and everything started working again.
4k to lower resolution now working again.