看來只有6800 Ultra有這CPU佔用率100%的問題... :confused: :shock:

A0工程版和初期上市版，應該是Overlay有bug。
後面的A1就沒有問題了，所以我身邊有兩個人用6800Ultra，
與我的6800GT狀況無異。

........刪............ :p

新的消息...NV的公關好像有點唬爛而且現在好像還要再花$20註冊nVidia DVD Decoder配合新版驅動才能享受硬體應該內建的功能?? 昏倒... :stupefy:

http://www.theinquirer.net/?article=19314
Nvidia 6800 acceleration works

Video acceleration works


By Fuad Abazovic: Wednesday 27 October 2004, 13:44

WE WROTE this article yesterday but Nvidia has given us guidance on the subject.
Nvidia 6800 generation indeed has hardware video support up and running. It will work just fine if you download new drivers which are expected soon and will appear on its web site. You will need the Nvidia DVD decoder as well.

Some people already have these drivers and you can check our friends' web site which has already tried them out, here.

Here is original response that we got from Nvidia on this matter just a few minutes ago.



Hey Fudo,

In answer to your story on 6800 having no video.

The GeForce 6800 models featured the 1st generation of our programmable video technology which includes support for high-definition MPEG2 video decode and standard definition MPEG2 encode, as well as advanced post processing features such as motion adaptive deinterlacing, and inverse 3:2 pulldown.

The GeForce 6600 models have the same 1st generation programmable video technology support as the GeForce 6800 models. However, the GeForce 6600 models also include hardware acceleration for high-definition Windows Media Video (WMV) decode.

In order to utilize the programmable decode and advanced post processing features of the GeForce 6800 and 6600, end users need to download an updated ForceWare driver as well as the NVIDIA DVD decoder.

The ForceWare driver will be available shortly on the NVIDIA.com and the NVIDIA's DVD decoder is already available for download from NVIDIA.com. For Windows Media Video decode on the GeForce 6600 models, end users will also need to download an update to Windows Media Player from Microsoft.

NVIDIA is also working with application vendors to take advantage of the programmable encode features of the GeForce 6800 and 6600. This feature just like programmable pixel shaders when they were first introduced, requires additional collaboration with application vendors. The first application that NVIDIA is targeting to support it's GPU encode capabilities is Windows Media Center Edition 2005.” Adam

Nvidia PR manager Europe

So you will get your drivers and everything will work, you'll be relieved to hear. µ


http://www.theinquirer.net/?article=19362
6800 AGP WDM is broken and it will stay that way

Reader fire arms to Nvidia


By Fuad Abazovic: Saturday 30 October 2004, 10:28

AS I PERSONALY was dissatisfied with how Nvidia was treating my readers, I wanted to do something about it. All Nvidia PR machine does is putting some nice out of the world "we are all happy" documents and think our readers will buy it. Well they haven't, and they haven't bought the Soundstorm story either.
Here is our original article and Nvidia's reply, here.

This is what one of reader had to say to Nvidia and I have an inbox full of similar mails.



Fudo

Sorry, but that reply from nVidia is bull***t. Please tell the PR-manager I said so.

I have a 6800 LE AGP and I have bought the nVidia DVD Decoder. Drivers do nothing at all for decoding performance. The only thing that affects playback of MPEG-2 is the DVD Decoder. Neither the decoder or drivers help WMV9 (the PR-manager practically nixes this in the reply) or XviD/DivX (MPEG-4) playback, both of which are still advertised as important features for the GeForce 6-series.

And yes, I've tried every driver since 61.xx and up to the newest, playback cpu load is identical.

I suggest they come clean before they have a IBM Deathstar-like PR-catastrophe on their hands. Oh, I had one of those too. Nasty lil' bugger.

http://www.nvidia.com/object/feature_on-chip-video.html

"Another important factor is that the GeForce 6 Series GPUs are completely programmable and can handle formats such as WMV9 and MPEG-4. The NVIDIA motion compensation engine can provide decompression acceleration for a variety of video formats including WMV9, MPEG-4, H.264, and DiVX. As with motion compensation for MPEG-2, the NVIDIA video engine can perform most of the computation-intensive work, leaving the easiest work to the CPU. "

And yes, I do encode quite a bit and I do play HDTV-material quite often. I'm not Joe Average Gamer, whining because some minor feature he really doesn't comprehend or really never had plans of using doesn't work. I bought this card in part due to the fact that it touts a kickass VPU.

自行用1080p WMV HD測了一下6800 GT, CPU佔用率約在60%左右.

:shy: 我後來有測了一下...發現原本跑1080p WMV HD會讓CPU佔用率到100%左右的原兇是K-lite..... :jolin:
假如一移掉就正常...大約30~60%之間跑動而已....
只是這樣的話....我就要個別裝Divx還有XviD....:jolin:
...不過移除後再重裝卻發生了怪事,用MPC播放任何影片畫面都會出現非常不正常的跳動
.............刪除換舊版的K-lite或是個別裝Divx都沒用...但是用WMP10來放影片又非常正常..... :stupefy:
..... :cry: 昏倒.....看樣子過些時候又要為MPC來重灌系統了... :cry: :cry:

裝上了nVidia DVD Decoder...
WMV HD播放CPU佔有率還是60%左右.

NV DVD Decoder(在6800上)對WMV-HD沒有幫助。(根據Inquirer刊出的NV PR信件)

不過關於VP，有完全不同的消息指出完全不同的狀況：
http://www.tcmagazine.info/modules....rticle&sid=8143

這邊的消息是6800的VP有硬體問題而完全無法啟動，也無法由Driver修正；
不過並沒有確認硬體的晶片版本等等的問題，在詳細資料出現之前，
建議對此消息持保留態度。

另外，這邊用NV DVD Decoder沒辦法播放DVD.... 會Hold住沒畫面。:jolin:

http://www.nvnews.net/vbulletin/sho...3&page=29&pp=15

NVNEWS forum，關於VP的thread。
有人表示blank screen和VMR設定有關，在61.77 or 66.77這兩版Driver可以正常運作。

目前撲朔迷離中....

剛剛試過Striker 1080p版
CPU佔用率在48%~82%之間. 平均值我猜65%吧.
尚可接受. :agree: