Black screen issues.

[Idifferent]

Hello,
I've built my first PC few months ago and since then i've had this issue my PC's screen goes black then comes back randomly...also I'm also playing MMOs like B&S/Perfect world or any other game i run the game screen would freeze(not responding) untill i unplug and then plug back the HDMI cable back into the monitor doesn't matter if i play games max settings or low settings still happens.I've read few suggestions here on forums and what i've done till now:|
-Did a clean graphic cards install
-Got a DVI to HDMI cable
Yet it still hapen... I'm out of ideas ;/
My specs:
CPU:Ryzen 5 1500x (no oc)
GPU:GeForce GTX 1050 TI 4 GB
MOBO:ASrock b350 pro4
PSU:EVGA 600W i think its bronze... forgot.
RAM:CorsairVengeance LPX DDR4 3000 MHz 2x4GB
HDD:WD Blu Hard Disk 1 TB 7200 RPM, SATA 6 GB/s, 64 MB Cache, 3.5 "
SSD:Samsung EVO850 250GB
Case:Corsair CC Spec 03 Red
Monitor:LG 25UM58

 

[gaborbarla]

It is very likely that it is a cable issue. Perhaps your cable cannot handle the bandwidth 2560x1080 that the monitor's resolution needs especially if you run it over 60Hz. I think this monitor can do 75Hz and this could be why it goes blank.
I would use an HDMI 2.0 or at least 1.4 cable without an adapter directly to the PC. I also have one of these monitors at my office and I use an HDMI to DVI cable but it must be DVI-D (dual link), meaning the cable must have more pins than a DVI single link cable.
http://i.imgur.com/qRyPK.gif

My adaptor cable HDMI to dvi is dual link and I dont get the black blinks or turn to black like others do.

 

[Idifferent]

It is very likely that it is a cable issue. Perhaps your cable cannot handle the bandwidth 2560x1080 that the monitor's resolution needs especially if you run it over 60Hz. I think this monitor can do 75Hz and this could be why it goes blank.
I would use an HDMI 2.0 or at least 1.4 cable without an adapter directly to the PC. I also have one of these monitors at my office and I use an HDMI to DVI cable but it must be DVI-D (dual link), meaning the cable must have more pins than a DVI single link cable.
http://i.imgur.com/qRyPK.gif

My adaptor cable HDMI to dvi is dual link and I dont get the black blinks or turn to black like others do.

Hello gaborbarla,
Thank you for your reply i just checked again the DVI cable i bought one week and ago and it is DVI-D after looking at the picture you posted,also monitor is running at 60Hz right now.