Same problem with Dell 4k monitor. If I reduce the window it plays back realtime?? Any luck finding a solution??
What is the resolution set to in the Composition panel? If you reduce this, do you get real-time playback during RAM preview?
When you have the monitor set to 1080p mode, what resolution is the Composition using?
What are the dimensions of your composition?
What are the specs of your computer? Include the operating system version.
Hey Tim, thanks for the response.
I have found a work around for the short term - turning off 'show cache indicators' on the timeline solves the problem. The only drawback is that I cannot see what has been written to RAM/Disk.
I am working with multiple compositions, the main being 1280x720. All compositions have the same problem no matter how small and simple. Even a simple text animation on a composition of 128x32 pixels.
Dell UltraSharp 32 Monitor UP3214Q @3840x2160
Dell Precision T3610
Intel Xeon E5-1650 v2 (Six core HT, 3.5 GHz Turbo)
32GB 1866Mhz DDR3 ECC
512 SSD Main Drive
2x 1TB 7,200
3 GB NVIDIA Quadro K4000
Win7 Pro 64bit
Media/Disk Cache writing to 2nd drives
4GB Ram reserved for other apps - AE 27.9GB
CPUs for other apps 2
RAM allocation per CPU 3GB
Actual CPUs used is 8
Thanks for the info about the cache indicators. We'll investigate.
I am still interested to know if changing the resolution of the monitor affects the problem in your case, as it did for Jorge.
Yes, playback is fine @1080p
Also, running at 4k and reducing the timeline panel only to half the screen width also cures the problem.
It would appear to me that the timeline with high resolution is the issue. The compositions of any size appear to make no difference in either case.
The best workaround for the time being is turning off the Cache Indicators. RAM previews write in very quickly on my current projects so it isn't too much of an issue.
I hope your investigation is going well, because I have the same problem, with the same solution as MrCharlue, 4K monitor, when timeline window is big makes preview at 25 fps all but impossible, removing "show cache indicators" makes the problem better, but doesn't solve it completely. We have the same problem on two completely different systems in the studio (same 4K monitor though) Size of the composition doesn't appear to matter at all. Being a problem from 2014 I must assume somebody would know something, CC2018 suffers from this too.