Shark Man

Just playing about with a new 16:10 monitor I've just had and tried some HD stuff to see how good it was, but found the 1080p demo stuff (off Microsoft's HD demo site) somewhat jerky. Not unwatchable, but not right either. 720p seems Ok though,

Spec is:

Core2duo 6400 2.13 Ghz
2gig RAM (667)
7600GS graphics (overclocked to 514MHz GPU/ 404MHz memory) running dual screens
SATA2 HD running in AHCI
Vista business 64bit


My thinking is pointing towards the GFX, be it beacuse its overclocked (stable, btw), or that its just simply not up to the job. And nothing else seems stressed (well, at least according to the resources overview).

But I thought I'd just run it past on here before I go fiddling any further....Beacuse oddly, I ran the same test on the laptop (driving the same screen) with a bog standard Intel GMA 950 GFX, and it had the same problem, where in theory, it should be worse (alot worse).

Cheers.

Neanderthal

iTrader: (6)

You've got the same spec as my home PC (CPU/ram and gfx). Mine doesn't have any trouble playing the MS HD stuff though? My gfx car isn't overclocked but I wouldn't have thought that makes a diff? I'm running XP though.
Perhaps the drivers for Vista aren't quite as good?

bob269

Have you tried watching them with anything other than media player?

Shark Man

Hmmm, I agree, could be a Media Player 9 issue or a driver problem.

Have to admit I've had trouble with the orginal nVidia drivers with Vista concerning glitchy graphics (who hasn't?), and thus using alternate drivers which are as stable as it has ever been. But maybe its having issues on HD video.

Never thought of using another player LOL, blonde moment. Will try using something else when I get back before I start fiddling with the gfx drivers (again).

Cheers

bob269

give this a go

VLC media player for Windows

I'm on vista 64 with ATI and had no issues so it maybe your nvidia drivers?

bob269

Doesnt Vista run mediaplayer 11 ? or did you upgrade from xp and not upgraded the mp

Shark Man

yeah its 11..oops

jaytc2003

iTrader: (1)

I would say either a driver issue or the gfx card itself. isnt the 7600gs the cut down version of the gt?

Shark Man

7600GS is one notch down than the GT

Tried it iMedian and Media Player Classic (quicktime alternative ) with the same issues. So will have to start tweeking with the drivers....

Interesting thing is its the slow panning stuff that it falls foul on. The faster moving stuff seems ok

bob269

Did you try vlc media player?

Mick

iTrader: (1)

My FX5900XT and 6600GT (not on Vista though) both run HD movies from the demo site OK...

I'd be surprised if it was the spec of your card. Have you tried it back at standard settings?

Mick

Shark Man

Card is running stock timings now, de-installed and reinstalled new upto date codecs. No change.

Its most noticable on the demo found here http://www.microsoft.com/windows/win...tshowcase.aspx site with the 1080p file titled "speed (IMAX)"

The background/landscape moving in the glider scene is probably the most noticable. Fast moving images and stuff in the forefront appears to be ok.

Drivers next (when I get back home ), looks like its back to the original glitchy nVidia one, unless there's a new one out......

Shark Man

This is annoying me now. I've since noticed it does it on 720p on certain scenes on the top gear polar special (noticeable in slowish panning shots where the whole screen needs to re-draw), it does it on the non-HDTV too to a lesser extent.

So its definetely something that it doesn't like when it has to do a full screen re-draw on left-right panning shots, and its impacting the frame rate to teh point that the motion is jerky.

Going back to the signed Nvidia driver made it worse (system unstable, not comming out of screensavers etc).

Thankfully, as of yesturday Nvidia released a new driver. So now at least its stable (again). Video problems still exist.

I've been playing with codec settings non-stop and not one thing has made a difference.

Doesn't matter if I use dual view monitors, or just the one, DVi out or VGA out. Or if I use my only the 19" LCD or 22" LCD on their own with all response time compensation features turned on or off (one screen is 2ms the other is 5ms).

Nor what player I use, be it Classic, VLC, MP11 or whatever.

Have done codec re-installs, but obviously how can I tell which codec is the duff one and which one the media player uses? Doesn't matter what I setup in the option its doesn't make anydifference (except cause Media player classic to crash when going full screen whilst playing video).

Not forgetting endless googling to see what others are doing to sort this.

I seriously questioning the point of using this PC as a HTPC now. Short of sticking XP 32bit on it to see if that addresses the issue (which it might not), I'm at a loss.

Mind, I notice the Virgin cable boxes suffer the same problem on STV when I went round to my mates....hmmm

MrShades

Dunno if it helps, probably not, but my E6600 with 7900GS graphics, 2GB RAM running Vista 32 bit displays "Speed" perfectly with WMP 11 (full screen or windowed). Looks great!

Whilst it's the Vista 32 driver that I'm using, it is an nVidia one: v7.15.11.5818

However, highest native screen resolution I can run at (cus of my monitor) is 1280x1024 - so not getting true 1080 look.

Shark Man

Cheers, my one monitor runs at 1280x1024 and its the same running just that on its own.

My video drivers are also 7.15.11.5818, with the exception of the ones I upgraded yesturday which are now 7.15.11.6222

Just ran a microsoft hotfix, no effect.

Think I'll have to see about setting the system up as a dual boot so it'll run xp 'till I figure something out.