[tofen]

I have a weird issue that i can't quite figure out.
A few nights ago I decided to upgrade from 9.11 to the new Dharma Beta 4. Since then, I have huge stuttering issues which makes most videos unwatchable.
Most videos I have is Xvid / SD videos, which shouldn't be any problem at all for the hardware to handle, and they worked great when I had 9.11.

The weird thing is though, if I start XBMC and start a video it will stutter all the way from the beginning. But if I, while the video is running, press Ctrl+Alt+Del to bring up the task manager, the stuttering suddenly stops and the video runs as smooth as ever.
If I then close that video and starts another instead theres no stuttering at all.
I can even close XBMC completely, then start it again and the stuttering will still be gone.
But if i restart the computer, or leave it idling for a long time, the stuttering comes back the next time I start XBMC and starts a video. I even think it comes back when having XBMC running and leaving the computer idle for a while.

I have tried searching the forum, but haven't been able to find someone with the same problem.
Does anyone have an idea on what it could be?

Computer Spec:
Intel Pentium Dual Core E6300
Intel® Desktop Board DG45ID with built in X4500HD Graphics.
2GB RAM
Windows 7 x64

[natethomas]

Well, a debug log would probably help here. See my signature for how to get one for Windows. I might suggest going to:

settings>system>video output

Then ticking "use a fullscreen window rather than true fullscreen," or unticking it, if it already is ticked. Probably won't work, but it's my best guess without seeing a debug log.

[GranCanaria]

have the stuttering in old simpson episodes in the beginning for 5 seconds and mostly a second time after the couch gag. after that it runs smoothly.
did not have that with the old version or remember in the first 2 betas
just waiting for the final release.

[tofen]

Here is the debug log. I can't find anything strange in it though.
http://pastebin.ca/1993625

What i did was:
Start XBMC.
Stop the library refresh.
Start a video and let it play for around 2min, it did stutter the hole time.
Press Ctrl+Alt+Del, then refocused XBMC.
Let the video continue to play for another 2min, without any stutter at all.
Stop the video
Close XBMC.

I will try the fullscreen think next. Hopefully that does something.

[CrystalP]

Try disabling Aero. You'll probably have to turn on Vsync to avoid tearing then.

Are you using an interlaced resolution on purpose for the desktop?

[tofen]

Well, a debug log would probably help here. See my signature for how to get one for Windows. I might suggest going to:

settings>system>video output

Then ticking "use a fullscreen window rather than true fullscreen," or unticking it, if it already is ticked. Probably won't work, but it's my best guess without seeing a debug log.

I did actually help to untick the "fullscreen windows" box. Thanks' a lot!

I just had to disable mouse support to since the cursor was in the middle of the screen and didn't disappear when running real fullscreen.