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After having made a mess of things completely on this computer, I started over fresh with the 8.04.1 ubuntu desktop install, keeping only my "/mymedia" partition. My problem here is ...
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- 08-14-2008 #1
VLC in Ubuntu 8.04 -- Glitchy Video AND Audio
After having made a mess of things completely on this computer, I started over fresh with the 8.04.1 ubuntu desktop install, keeping only my "/mymedia" partition.
My problem here is with VLC, which was the one thing that worked just fine under my previous (otherwise really hosed) installation of xubuntu/kubuntu. Now though, there are disruptive glitches in video and audio playback.
Video: playback hesitates, then catches up real quick like it's fast forwarding to catch up. The "pause delay" ranges from barely perceptible to more than a full second. Intervals between glitches range from 10sec to 5min.
Also, the screen updates seem to be non-synchronous with the refresh rate, so that there are horizontal lines, especially when scenes pan left or right, or when someone walks by. This is constant when it happens, but does not seem to happen with all files.
Audio: Snap, Crackle, Pop! (tm) ... Intervals between glitches range from 5sec to about 2 minutes. Just a single "click" every once in a while, or a very quick double click, or a very short silence followed by a click or series of clicks/pops. Affects the tweeters mainly, but sometimes sets off the subwoofer in an uncanny way.
The audio / video glitches ALMOST NEVER happen at the same time, except near the beginning of a file (first few seconds).
I have tried changing all kinds of settings, like increasing the priority (in the VLC advanced preferences, the gnome system monitor, and manually with "renice" which requires root/sudo.) Windowed and full screen behave the same, by the way. I have tried all kinds of different video output methods: GL, XV, X11, all of those listed in the prefs. I tried adjusting streaming settings, in case that would take effect somehow on a local file. Tried alternate fullscreen. Tried just about every combination of advanced gui (CTRL-G) settings, e.g. with/without audio equalizer, with/without video settings (hue, contrast, etc.)
The same files (just about any xvid / divx file I have tried) give me flawless playback with mplayer, xine, and Miro (formerly DemocracyTV) But I really really like the interface of VLC, and want to keep it, if I can get it working properly. I love the ease of use for example, of video settings and audio equalizer.
For now I'm using mplayer, and trying to figure out how to set the keymap the way I want it. Once I get those settings down, I will be less attached to VLC, I suppose.
Thanks for any insight. Oh, and I HAVE installed the nvidia-glx driver, the xserver-xorg-video-nv driver, all kinds of opengl stuff, and whatever else was auto-detected by the Ubuntu 8.04.1 install procedure for my GeForce4 MX 440.
- 08-15-2008 #2
i'm always using mplayer. vlc is not bad but when you get and compile mplayer from it's homepage (not the deb pack install) it's really perfect. this is my opinion. and i believe the compiling is the best