MPEG4v streams give a Blue Screen

**jgehrig** · 29-Apr-2009, 06:32

I have two problems on my computer:
1)My webcam gives a blue screen, unless I use luvcview -w (Disable SDL)
2)MPEG4 will give a blue screen in Kaffeine (Audio Works)

I was just thinking that they could be related

I couldn't figure out why the video in Kaffeine isn't working, I believe I have the Win32 decoding library installed. I thought it could be something wrong with xVideo??? My computer has one of the Intel Integrated Graphics Cards.

Kaffiene says,
[mpeg4 @ 0x8b1d000]Invalid and inefficient vfw-avi packed B frames detected

luvcview doesn't say anything, but just gives a blue screen.

Any Ideas on what I should do.

**FeatherMonkey** · 29-Apr-2009, 06:38

Go on, I know you can search. I answered this the other day..

If you really can't find it try this in google

kaffiene give a Blue Screen

**microchip8** · 29-Apr-2009, 08:27

your blue screen is cause by corrupt packed b-frames which are a pain in the butt to deal with in the first place. Also kaffeine is a crappy player, try mplayer from console and see the error messages it gives and if you'll get a blue screen again

**FeatherMonkey** · 29-Apr-2009, 08:35

I don't know what causes it.

But it seems only related to intel and shared memory, even though they didn't fix it with xorg to me it looks like a shared memory fix to me.

http://forums.opensuse.org/applicati...-kaffeine.html

**jgehrig** · 29-Apr-2009, 09:42

I've already searched for the problem...

I've found lots of examples of the problem but no one gives a solution...

What should I do? Do you have a link to someone who has fixed this problem?

**microchip8** · 29-Apr-2009, 09:56

you can either re-encode the file WITHOUT packed b-frames, or try different video output drivers. Dunno about kaffeine, but mplayer has several

mplayer -vo help

mplayer -vo <driver> file.avi

**jgehrig** · 29-Apr-2009, 10:03

I can't download Mplayer right now, I'll try that soon.

Do you know how to fix the output problem. I'd really like to fix my web cam so that it works in Skype but I get the blue screen.

Is there something I could change in xorg.conf that I could change to get around this problem?

Thanks for the help

**microchip8** · 29-Apr-2009, 10:06

no idea, especially on Intel graphics (which I never use)

**FeatherMonkey** · 29-Apr-2009, 10:45

The search that got me started.. linux intel kaffeine blue screen - Google Search

One way of fixing..
Kaffeine and HDTV movies - Ubuntu Forums

Another way..
SOLVED: DVDs in Kaffeine - I have audio but no video (thank you Rog131)

As for preference for one way or another I can't comment and man xorg.conf would be the place to start, with googling for options for the said device driver.

**jgehrig** · 29-Apr-2009, 12:39

I'm having some problems...

The method of fixing this using the i810 driver doesn't work... X will not start...

The other method doesn't work for me...

Is there any way i810 isn't installed on my system?