Hey guys, I have been having some issues with my second monitor today.
Just to start off so I dont have to keep repeating it:
OS: Windows 10 64bit
GPU: AMD Radeon R9 380x
GPU driver (current): 18.2.1
Display: LG 2560x1080 displayport (main) & LG 1920x1080 hdmi (secondary) (both at 60Hz)
mobo: Crosshair V formula
(just posting what seems relevant, if more detail required, please just ask)
Yesterday I updated my graphics card. I also installed Radeon ReLive and all worked well. Today when I wanted to view some of the test footage I made, I noticed a red lin down the middle of my main screen. I thought maybe because I had the ‘demo on’, so I disabled it and when it was still present I restarted my PC. During the restart my PC froze and I had to manually turn it off. (I gave it more than ample time)
Upon restart everything looked normal. But then it got to the Windows logging in screen where the icon was off to the right on my main screen, by a lot. Once the login was complete, my second monitor was blank. I looked at the display settings and saw that my main monitor was set to 4480x1080 instead of the 2560x1080 it should be. My second monitor was not shown.
I have since then tried:
- rolling back drivers
- updating drivers
- disconnecting and reconnecting cables
- changing settings in windows display
- changing settings in Radeon
- Disabling fast boot
I’m not sure what is going on, because during boot my second screen is displaying. And when windows is loading it also displays correctly. It is only once the login has started that the second monitor goes blank.
Any help would be intensely appreciated as for my projects for college 2 screens really is necessary. If you have any other questions, I will answer them asap and if I somehow manage to fix it I will post it here for others.
Edit: Not sure why I didn’t try this earlier, but I disconnected my main display, which caused my secondary display to function as it should, but upon reattachment of the main display, I lost signal to the secondary. Windows will not recognize it. I believe it might be something to do with the GPU and not willing to send two signals, but I cant say what it is.