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Hi I just built a NAS server with at ASROCK J3455-itx everything is working perfectly except hibernation. I think i figured out it has something to with the computer trying to read the LED brightness. But it cant and wakes up again. i found this in scemd.log: 2018-06-29T19:37:31+02:00 Grevy-NAS scemd: led/led_brightness.c:244 Fail to read /usr/sbin/i2cget 2018-06-29T19:37:31+02:00 Grevy-NAS scemd: led.c:35 SYNOGetLedBrightness fail() 2018-06-29T19:37:51+02:00 Grevy-NAS scemd: event_disk_hibernation_handler.c:42 The internal disks wake up, hibernate from [Jun 29 19:37:27] 2018-06-29T19:48:16+02:00 Grevy-NAS scemd: led/led_brightness.c:244 Fail to read /usr/sbin/i2cget 2018-06-29T19:48:16+02:00 Grevy-NAS scemd: led.c:35 SYNOGetLedBrightness fail() 2018-06-29T19:48:34+02:00 Grevy-NAS scemd: event_disk_hibernation_handler.c:42 The internal disks wake up, hibernate from [Jun 29 19:48:15] 2018-06-29T19:58:35+02:00 Grevy-NAS scemd: led/led_brightness.c:244 Fail to read /usr/sbin/i2cget 2018-06-29T19:58:35+02:00 Grevy-NAS scemd: led.c:35 SYNOGetLedBrightness fail() 2018-06-29T19:58:55+02:00 Grevy-NAS scemd: event_disk_hibernation_handler.c:42 The internal disks wake up, hibernate from [Jun 29 19:58:35] 2018-06-29T20:09:27+02:00 Grevy-NAS scemd: led/led_brightness.c:244 Fail to read /usr/sbin/i2cget 2018-06-29T20:09:27+02:00 Grevy-NAS scemd: led.c:35 SYNOGetLedBrightness fail() 2018-06-29T20:09:40+02:00 Grevy-NAS scemd: event_disk_hibernation_handler.c:42 The internal disks wake up, hibernate from [Jun 29 20:09:26] As you can see it keeps on waking up right away and go to hibernate 10min after. Can someone tell me how i turn off the brightness reading ? Best Regards RKG90