Videos don't work anymore

[SINZAR]

I accidently upgraded my media player to 10 and my videos no longer worked. I rolled back to 9 and my videos still didn't work (no video just audio).

I uninstalled all codecs, restarted and reinstalled them, didn't work.

I uninstalled all codecs and one by one installed them checking a video each time to see if it was working, it wasn't.

I don't know what's going on here but I remember having this same problem years ago the first time I accidently installed mplayer10.

It should also be noted that videos don't work in any of my media players (mplayer2, vnc, winamp, nero showtime).

I'm all out of ideas so any help would be appreciated

[Baldrick]

Have you tried player with VLC Media Player ? It has builtin codecs so if it works fine you have a codec problem.

It could also be an overlay / hardware acceleration problem. Have you checked the display settings->advanced under the control panel? If you for example have two monitors or a tv-output check so your main monitor is the primary display.

[SINZAR]

After messing around some more, it's working again. To be honest, I have absolutely no idea what I did. I'm a pretty technical guy so I have some inkling when I'm fooling around with things so I'm completely clueless as to how it's suddenly working fine.

Initially I had tried with vlc and videos weren't working in it either. I also tested wmv's in media player and they weren't working.

I appreciate the quick reply, just wish I knew what the initial cause was in case it happens again.

[SINZAR]

Well it looks like I spoke too soon. After a restart, the videos are back to how they were. I uninstalled all codecs again and tried using just vlc but it doesn't work either.

Any idea what would be causing this?

[redwudz]

I would still suspect overlay problems as Baldrick mentioned.

Two ways you might check:

In Control Panel>Display>Settings>Advanced>Troubleshoot'. Reduce the 'Hardware acceleration' to about 1/3 and see if that helps.
Start up VLC, then add a second startup of VLC. If one has video and the other doesn't. That's an overlay problem.

Cures could be a setting for your video card or updating your video card to a newer driver.

[SINZAR]

It was an overlay problem. VLC worked when there was 2 instances of it running so I just went into my catalyst control and reset it back to factory defaults and the problem is resolved.

Thanks a lot guys I was really starting to get frustrated with this one.