AnsweredAssumed Answered

2nd monitor turns on and off randomly on r9 390

Question asked by uwe3dcr on Feb 19, 2016
Latest reply on Feb 23, 2016 by uwe3dcr



I have an issue with my 2nd monitor which drives me crazy as he goes black for a few seconds and then turns on again, without any error (like no signal found or something similar)


Here the specs of my system



Manufacturer Gigabyte Technology Co. Ltd.

Model Z97X-SLI-CF (SOCKET 0)


Operating System

Windows 7 Ultimate N 64-bit SP1



Intel Core i7 4790 @ 3.60GHz

Haswell 22nm Technology



32.0GB Dual-Channel DDR3 @ 799MHz



Gigabyte Technology Co. Ltd. Z97X-SLI-CF (SOCKET 0)



Main Monitor (connected using HDMI cable)

BenQ RL2455 (1920x1080@60Hz)

2nd monitor (connected using original DVI cable)

BenQ GL2450 (1920x1080@60Hz)



ATI AMD Radeon (TM) R9 390 Series

Manufacturer ATI

Model AMD Radeon R9 390 Series

Device ID 1002-67B1

Revision 81

Subvendor ASUStek Computer Inc (1043)

Current Performance Level Level 0

GPU Clock 1050.0 MHz

Driver version 15.300.1025.0

BIOS Version 115-671GPI0-100


Power Supply

EVGA SuperNova NEX750B


So far I have tried a different DVI cable, a different monitor and checked on a updated driver (apparently i have the last version) but noting has helped


The weird thing is that this happens even during the time that the pc is not doing anything and it is totally random. Sometimes it stays on for hours, even when i work on heavy 3D files using 3ds max.

And then it starts again without any warning.

I've also checked on the temperature, which usually stays between 45 - 50 °C


Anyone has an idea what could cause this and what i could do to get it fixed?