Awful video quality on Windows 7 x64 bit systems


  1. tallman
    Posts : 1
    Windows 7 Home Premium x64
       New #1

    Awful video quality on Windows 7 x64 bit systems


    I recently upgraded from Vista 32 to Windows 7 x64 on my HTPC. I had been watching videos of various file types such as xvid and matroska, and have been impressed with the quality of these compressed formats. After upgrading I found that the video quality had degraded dramatically. All video files now have a murky, high contrast appearance, sometimes with odd color shifting. Some videos with even lighting are still bearable, but most are awful and unwatchable. I assumed the problem must be with codecs or a problem with Windows Media Player, but the problem occurs regardless of the many different codecs and players I have tried, such as VLC or MPC. I then tried using different old and new video drivers and found no help there either. I finally tried playing the videos on a different computer I use for CAD work and, to my surprise, had the same problem. This baffles me because these are completly different computers, with different video cards, drivers, etc. The only thing they have in common is Windows 7 x64. Clearly there has to be a problem with Win 7 that is screwing up video, but its hard to imagine what that could be since the problem is not just with Media Player. But more to the point, if this is occuring on my completely different computers then it must be occuring on every Windows 7 computer playing video. Thats a lot of computers. What is causing the bad video and why aren't countless users complaining?
      My Computer
    Quote Quote

  3. Gornot
    Posts : 2,292
    Windows 7 Home Premium x64
       New #2

    Because this is a not a common issue, despite the fact that you experienced it on two computers. I personally don't use x64 so I can't think of much to help, someone else could, probably.

    MPC or MPC-HC? Do you have DirectX installed? What is the video renderer that you use for playing the clips?
      My Computer
    Quote Quote

  4. topgundcp
    Posts : 28
    win 7 ultimate x64
       New #3

    I have 2 PC's & 1 Sony Vaio Laptop, all running win7 x64 Ultimate and I dont have any problem that you described. I dont think the problem is Windows 7 x64 or video codec since all my systems playing MKV, avi, m2ts Video crystal clear & sharp.

    The problem might be your Video Driver not being installed correctly. Did you download the latest driver from the manufacterer's website or just installed the driver thru Windows update ? In order to install the video driver correctly, you need first to uninstall the current driver using safe mode. Also, check if the driver for your monitor is installed by right click on computer->property then go to device manager and look under Monitor. When you first install Windows 7, Microsoft usually install a generic Monitor driver for your monitor and the Video driver for your Video Card may be out of date.
      My Computer
    Quote Quote

 

  Related Discussions
:(I'm encountering a problem with playing mp4 videos at the moment (or so it seems to be only mp4). Basically, sometime last month, I began to notice the video quality becoming very poor when playing videos on WMP 12, as well as on CNN.com (streaming videos). CNN, somehow, is playing normally...
I would like to figure out why the video is so jerky running in normal mode. Is there a way to find out? Also the sound system does not start in safe mode.
Hi. I have three hard drives filled with movies and different series. To assure a certain standard for my video files I would like I program that automatically checks the video quality of my media files and then lists them so it's easy for me to see what I might want to delete or replace. The days...
Hello, I'm having problems with my the graphics card on my laptop. It's an APU and I have picture and videos problems. Whenever I watch movies or look at pictures I see most things fuzzy, (if that makes any sense). I tried to watch a DVD and the video quality was unbearable. The most...
Video Quality
in Graphic Cards

Hey Guys. Im running both vista and 7, and say if i open a episode of top gear on vista it runs great. but the same file runs really pixelated on windows 7, i have got the latest drivers for gpu, but quality still bad. any ideas? Thanks Matt.
Our Sites
Site Links
About Us
Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

 © Designer Media Ltd
All times are GMT -5. The time now is 16:15.
Find Us