I am having the same issues with my Aorus Master 6800 XT connected to a LG 27GN850.
I also get some mouse stuttering while in the desktop. Wondering if the two issues are related and maybe if anyone else has the stuttering issues.
Same problem, 6800XT Nitro+ with an LG 32GK650F (1440p 144hz), using 120hz is the only way to get the memory chill because selecting 144hz gets the 2000mhz bug.
What a friend told me:
"From what I've seen, the default blanking interval is very short, and at that refresh rate (144hz) the memories in their idle/2D speed are not up to the task and need to go to performance/3D state so that the output image doesn't get corrupted or flickering, etc.
The signal being 10 bits/hdr doesn't help either, more load.
Increasing that parameter and lowering 2hz solves the problem so that everything fits in the idle speed of the memories, if the monitor has no problems with that extended interval, luckily and generally does not seem to be a problem."
In CRU i copied the original 144hz settings and only changed this:
Now is working 142hz 10bit no problems. Another thing unrelated to this thread was freesync, on the driver was reported 120-144hz... changed that on CRU to 48-144hz which is what LG says my monitor supports and now is also working fine.
Cool, thanks for your answer! I’ll give it a go, when I’m at home! Cant go past 137Hz with my LG 27-850 for now.
So i tried it, but unfortunately my memory still is stuck at 2000MHZ. I have no idea why, since we both have the same monitor settings. Any idea?
I found the problem. After restarting with CRU it added my second monitor again as a device, so it got stuck at the high MHZ. After disabling it and putting it to your values, its now working! Thank you for your help. I think 2 Hz more or less is no problem. 🙂
After some mails with the AMD Tech Support. I got the following answer.
So at least they didn t say, that this is a behaviour as intended.
I hope they fix it, I don´t wanna mess around with the customs CTR Tool refreshrates as it always created some trouble in games. Running right now 144Hz on 1440p. The memory downclocks. 165Hz is not downclocking.
So I´m running desktop with 144Hz and if I wanna switch inside the game (properly configured the settings) to 165Hz the monitor doesnt accept that. In some games they say it is 165Hz, but if I check the refreshrat in the Monitor OSD it is still stuck at 144Hz :/.
I hope they fix it, or at least fix that the changes inside the game will work and overwrite the 144Hz from the desktop setting.
I guess I don't understand why the memory clock being higher at idle is an issue? With my previous 2080 and current 6800 xt and 6900 xt they always remained constant.
Is using 40w on idle when it could use 5w, and keeps the card hot (just touch the backplate) and releaseing that heated air to the other components inside the case.
Its just a bit above room temperature on the backplate. It's also driving 2 3440x1440 144hz HDR monitors... I guess if someone is having issues with 30-40w going through their GPU at idle causing heatsoak in their other components than maybe they need to rethink their airflow pattern or turn up the fan speed a bit
Did anyone tried the new driver?
Radeon Software Adrenalin 2020 Edition 21.3.1
The changelog didn´t mention any changes for the vram idle clock.
Since I got my second Dell S2721DGFA with 165Hz, I can just get the VRAM clock down on desktop and idle when I change both monitors to 60Hz.
Radeon Software Adrenalin 2020 Edition 21.3.1 Highlights Support For
Added Vulkan® Support