stuttering in full screen with hw acceleration

[sssscary]

Hi,
I have a problem with the video stuttering when running in full screen on 1920x1080 screen. They are videos from a Sanyo Xacti video camera: MP4 H.264/AVC 1920x1080, framerate 59.940, AAC (stereo, 48000 khz)
Plays fine in a smaller window, but if window is too large, or full screen, has pauses, etc.
CPU usuage is low, 3% or so. CoreAVC plays video smoothly full screen in other players. Hardware acceleration works fine full screen for 1080p mkv movies downloaded, using Splash, as well as cyberlink 9 codec with acceleration.

AMD Athlon 64 X2 5200+
ATI ASUS EAH 4350
Latest 10.2 catalyst drivers
Windows Vista

The same Sanyo files play fine on Splash on my older PC (Celeron 3.0Ghz, ATI 4300) in full screen, but the screen is a smaller resolution, only 1280x1024

P.S Splash player is awesome, it my main player on the old PC already .

[Ghost]

Hi, thanks for reporting a problem.

Is your PC a laptop or desktop?
Did you try to lower your display resolution and check if playback is smooth? - this information could help us to investigate the problem.

[fullhd_fan]

The file from your camera is probably a high bit rate stream(>10 Mbps). Brand cameras usualy have options to select high quality recordings (resulting high bitrates), if not, your video has anyway a high frame rate. I have a similar problem posted already somewhere else on this forum.

[sssscary]

It is a desktop PC. I tried lowering the resolution and the problem went away. The file does have a high bit rate and frame rate (60 fps/ 24Mbps). As I mentioned previously, the CPU usage is very low even when full resolution.

[mjd@e-nspect.com]

i have same issues on all PCs I have. they all have NVidia chips the best being a lowly 8600GT.

so i turn it off and all is ok