thyfleshconsumed
n00b
- Joined
- Nov 30, 2016
- Messages
- 19
Backstory: a few months ago I got two LG 27UD68 4K FreeSync monitors for a good price to replace my old 1440p Aurias with big ugly plastic bazels. My R9 290 didn't have proper outputs to drive 4K at 60Hz so since I don't game that much anymore I also got RX 480 (MSI Gaming X model). I tried DisplayPort which worked flawlessly, except putting my monitors to sleep resets desktop as described here https://hardforum.com/threads/turning-off-displayport-monitor-resets-desktop.1714330/ and here https://hardforum.com/threads/stop-windows-auto-detection-madness.1783558/
I couldn't live with having to rearrange my desktop multiple times a day, so in desperation I decided to use HDMI. Howevcer, the universe seems to be conspiring against me and after having tried everything, and I mean everything, I can only come to conclusion that HDMI 4K@60Hz must be broken on RX480, either hardware, or software. My problem is that using HDMI at 4K@60Hz results in random signal loss and occasional display artifacts every so often. This is how it looks:
I have tried everything, and I do mean everything to fix it. I have tried different 480 (Asus Strix RX 480), I have bought some really expensive HDMI cables including bluejeans HDMI cables at $20 a pop thinking it's some kind of interference and better cable would help, it didn't. I have tried switching output from RGB to YCbCr and vice versa, I have tried hooking up just one monitor to the card, I have tried borrowing another 27UD68 monitor from my dad to see if maybe both of my monitors are defective (they aren't, a third LG 27UD68 had the same problem connected to my RX480), I have religiously installed every new driver from AMD thinking it would help, I have tried doing "Clean Install" through AMD driver installer, I have tried DDU utility. Nothing helps.
In the meantime it looks like I'm not the only one having this problem. There are multiple people at AMD community complaining about the same problem:
https://community.amd.com/thread/205187
The only thing that I found that solves the problem is going into monitor properties and changing refresh frequency to 59Hz or 60Hz, then I get zero signal loss, but this is a temporary solution, it only works until next time my monitors go to sleep, so I'm stuck with fiddling with refresh setting in my windows every time I want to use my PC.
Has anyone encountered something familiar with RX 480? Does anyone have RX 480 successfully driving 4K at 60Hz in 4:4:4 profile?
I couldn't live with having to rearrange my desktop multiple times a day, so in desperation I decided to use HDMI. Howevcer, the universe seems to be conspiring against me and after having tried everything, and I mean everything, I can only come to conclusion that HDMI 4K@60Hz must be broken on RX480, either hardware, or software. My problem is that using HDMI at 4K@60Hz results in random signal loss and occasional display artifacts every so often. This is how it looks:
I have tried everything, and I do mean everything to fix it. I have tried different 480 (Asus Strix RX 480), I have bought some really expensive HDMI cables including bluejeans HDMI cables at $20 a pop thinking it's some kind of interference and better cable would help, it didn't. I have tried switching output from RGB to YCbCr and vice versa, I have tried hooking up just one monitor to the card, I have tried borrowing another 27UD68 monitor from my dad to see if maybe both of my monitors are defective (they aren't, a third LG 27UD68 had the same problem connected to my RX480), I have religiously installed every new driver from AMD thinking it would help, I have tried doing "Clean Install" through AMD driver installer, I have tried DDU utility. Nothing helps.
In the meantime it looks like I'm not the only one having this problem. There are multiple people at AMD community complaining about the same problem:
https://community.amd.com/thread/205187
The only thing that I found that solves the problem is going into monitor properties and changing refresh frequency to 59Hz or 60Hz, then I get zero signal loss, but this is a temporary solution, it only works until next time my monitors go to sleep, so I'm stuck with fiddling with refresh setting in my windows every time I want to use my PC.
Has anyone encountered something familiar with RX 480? Does anyone have RX 480 successfully driving 4K at 60Hz in 4:4:4 profile?