Subscriber Gordon Shaw wrote for help to solve a problem with jerky streamed video:
Wonder if you could help. I have a PC with AMD Athlon tm 64 processor 3800+. 2.4GHz, ASUS M2V-MX Motherboard & 2GB Ram. The video card is a NVIDIA Ge Force7600Gs with 256MB of Video Memory. I’m running XP Home 32 bit with SP3.
I recently installed a BENQ G2420HD LCD Monitor with a natural resolution of 1920×1080 but have had to reduce this to 1620×900 as videos I play especially on BBC iPlayer are really jerky. Even now at the reduced resolution it isn’t perfect.
Do I need to replace my graphics card with say 1GB of video memory to achieve the proper resolution? If you could recommend a replacement I would be very grateful.
I wrote to Gordy to suggest that he check the Nvidia web site to make sure he has the latest driver. I also suggested that he check the Benq web site to make sure he has loaded the latest driver for his monitor. While the standard Windows plug-and-play monitor driver may work, and the video card driver in Windows may work, they’re not likely to be optimized.
I had an issue with my wife’s PC – she would get an error message that her video wasn’t fast enough, and an offer to turn the Aero interface off. I used the Windows 7 “Performance Information and Tools” function to check the Windows Experience Index. Hers was a 1.
I downloaded the drivers for her video card and installed them — and now her Windows Experience Index is 4.7. The Windows Experience Index is based on the score of the weakest component, which is her video card. It’s not great, but it’s definitely workable.
More memory on the video card may help with the high resolutions Gordy is trying to use, as he suspects. But, I really don’t think that’s the issue.
Regarding a specific recommendation for a replacement video card, I can’t do that. I don’t make comparisons – I buy the particular card that I want for the functions planned for a particular computer.
One other thing to remember – the speed of the video transmission from the web site will also affect the jerkiness. Also, I really doubt that the BBC is streaming at 1680×900 or 1920×1080. If you’re trying to view in full-screen, you’re making your graphics card expand and fill-in the dots. It’s impossible to add “information” to an image – if they’re transmitting at 640×480 and you’re expanding the image, it will just get blocky, as your video card expands each pixel into 2 or 3 pixels.
Bottom line, though, I suspect that his problem is either related to the video card driver, monitor driver, or the streaming rate.
Thanks for your swift and comprehensive advice. I’ll try the driver solution although I use Driver Genius Professional 10 to regularly check my Nvidia drivers.
Thanks for the information regarding the speed of transmission which made more sense then any site I’ve visited before. You may also have saved me the expense of a new video card hopefully.