HD videos display issue

queen cobra · Jul 20, 2014

Hello,
I have a unique problem. I googled everywhere but I wasn't able to find a solution nor a similar problem like mine. I have a DELL700m with windows7 installed. The problem which I have is that whenever I play an HD video(720p and above) the display is horrible, Screen shot: http://s29.postimg.org/j14t46t2v/Untitled.png .Otherwise my machine works fine it plays HDTV videos( which are usually 500p or less) fine also the playback in all video qualities is smooth the only problem is with display. I see only two minor problems with my machine, 1: the copy of windows is not genuine windows keep sending activation notification. 2: I have to plug my laptop all the time as it dosnt have a battery. I usually use VLC to watch videos I tried using other player such as K-lite codec and windows media player. The display is fine in windows media player but it stucks too much and K-lite codec pack pixelates ( gray screen) almost all the time although playback is smooth. I almost have tried using all the solutions I could find on the internet but none helped..Any genuine help will be highly appreciated

Solandri · Jul 20, 2014

The Dell 700m is a very old computer. I'm actually surprised you were able to even get Win 7 installed on it.

Newer video Codecs require a lot of processing power to decode. To prevent them from sucking up too much CPU, Intel, AMD, and nVidia have added circuitry to their GPUs (integraded or discrete) specially designed to help decode these codecs (sometimes referred to as video hardware acceleration).

The video card on an older computer like the 700m was released before some of these newer codecs were even invented. It doesn't have this extra circuitry to decode the newest codecs. Consequently, the computer has to decode it in software using only the CPU. What's likely happening is the video players are detecting the CPU isn't fast enough to decode the video in real-time at your resolution and bit depth (number of colors). So rather than make the video stutter (wait to decode, display, wait to decode, display, etc - what you experienced in Windows Media Player), they are downgrading the image quality (mainly the bit depth) to something your CPU can handle in real time.

There's nothing you can do about it short of getting a newer computer. If you're lucky, the real problem is that the player is not properly detecting your video card's capabilities. If you dig through the advanced options in your player, you might find obscure setting(s) which will work for the video card in your computer if you manually set them to the right settings. I've actually done this to get HD video working (barely - 720p ok, 1080p no way) on a Core Duo-era laptop. But yours is even older. And it's almost entirely a guessing game as you enable and disable different settings.

I suppose another option is to re-encode all your videos to an older or less processing-intensive codec (Handbrake has such an option). But that takes a lot of time especially on an older computer, and will make the movie file larger in size. If you don't want to upgrade your laptop but have another newer desktop computer on the same network, you can try installing a media server like Plex which can transcode the video in real time into something your older laptop can handle. Then use the desktop to stream the video to the laptop.

queen cobra · Jul 20, 2014

Solandri :

The Dell 700m is a very old computer. I'm actually surprised you were able to even get Win 7 installed on it.

Newer video Codecs require a lot of processing power to decode. To prevent them from sucking up too much CPU, Intel, AMD, and nVidia have added circuitry to their GPUs (integraded or discrete) specially designed to help decode these codecs (sometimes referred to as video hardware acceleration).

The video card on an older computer like the 700m was released before some of these newer codecs were even invented. It doesn't have this extra circuitry to decode the newest codecs. Consequently, the computer has to decode it in software using only the CPU. What's likely happening is the video players are detecting the CPU isn't fast enough to decode the video in real-time at your resolution and bit depth (number of colors). So rather than make the video stutter (wait to decode, display, wait to decode, display, etc - what you experienced in Windows Media Player), they are downgrading the image quality (mainly the bit depth) to something your CPU can handle in real time.

There's nothing you can do about it short of getting a newer computer. If you're lucky, the real problem is that the player is not properly detecting your video card's capabilities. If you dig through the advanced options in your player, you might find obscure setting(s) which will work for the video card in your computer if you manually set them to the right settings. I've actually done this to get HD video working (barely - 720p ok, 1080p no way) on a Core Duo-era laptop. But yours is even older. And it's almost entirely a guessing game as you enable and disable different settings.

I suppose another option is to re-encode all your videos to an older or less processing-intensive codec (Handbrake has such an option). But that takes a lot of time especially on an older computer, and will make the movie file larger in size. If you don't want to upgrade your laptop but have another newer desktop computer on the same network, you can try installing a media server like Plex which can transcode the video in real time into something your older laptop can handle. Then use the desktop to stream the video to the laptop.

Its an Old laptop no doubt, but believe me when I say that I have watched 720p on a 600m which is even older and has a much slow processor...I did some digging and found out that I had an ATI driver installed on that 600m machine...Also many of my friends have Asus eee-pc and there machine works fine even with 1080 quality videos..and when I tried playing a 720p on my eee-pc the same problem occurred as it did on 700m...If anyone knows of a good video driver for either eee-pc or 700m please mention.

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