Peter Chamberlain wrote:Some GPUs can decode H.264 in hardware, rather than a GPU process.
In any case, im just told there is a likelihood this is an AMD driver issue that is still outstanding so not much we can assist with at the moment.
"Driver issues" is to AMD like ducks are to water. I can't understand how they are *still* releasing horrible drivers for their own GPUs. I'm also having the problem of thumbnails not displaying correctly in Resolve, and I'm running a Ryzen 3700X system with the Radeon 5700 XT GPU. It really chokes badly on H.264 clips. Once I optimize the media to DNxHR, the thumbnails display correctly in the bin.
The thumbnail issue is driving me up a wall. I hope AMD fixes this issue soon.

EDIT: That said, I just loaded up the same H.264 clips in Premier and they played fine, with the thumbnails displaying correctly. So, now I'm not sure where the problem lies.