i'm using Lightroom CC for a couple of days now and got some issues with the GPU acceleration. When using it, i encounter some displaying issues which are hard to describe. Therefor i uploaded a public video @ Youtube and Dropbox:
The PC i'm using is a Dell XPS One 27 (All-in-One PC) and there is a Intel GPU (slow) and a Nvidia GT640M (faster). When i activate the GPU acceleration it automatically uses the Intel GPU. Therefor i disabled it in the device manager of windows. Then the GPU of nvidia is used and everything is faster. But after using it for a couple of minutes i encounter the displaying issues (ghost pictures). When i disable the GPU acceleration everything is fine. I already checked for LR Updates and installed the latest Nvidia driver.
I first thought it's maybe a hardware issue of the graphic chip and checked the temperature but this doesn't seem to be the solution. Even when it's at about 60C° and i suspend the PC to disk and wake it up after a couple of hours the issue even occurs when the GPU is just about 40°C.
Does anyone know what causes the issue?
The video driver is updated already and disabling the acceleration helps.
Is Adobe aware of this bug(?) and is it on the fix list?
I don't know if it's on the fix list but I do know Adobe is aware of it as you're definitely not the first to report the problem. Users are having very similar problems in Camera Raw, Lightroom and Photoshop since the latest update.
Don't know what causes it myself as I haven't been able to repro; I have an Nvidia card as well.