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Ghosting of Firefox videos

PostPosted: May 1st, '12, 11:51
by tarazed
One remaining oddity in the Mageia 2 beta running in a GNOME Classic
session, 5 workspaces, nVidia GTX 555:

Whenever a Youtube video plays in Firefox, if gnome-terminals are open
in other workspaces the video frame can overlap an xterm that covers
the same relative position. If there are for instance three xtermsopen in one workspace the video interferes with only those which have the default black background. If one of the others is moved over the overlapping portion the video window is obscured but reappears as soon as the other xterm is moved out of the way. Move to another workspace, raise another gnome-terminal and move it around and the video overlap occurs provided that the xterm is black. I tried vlc instead of an xterm and the same thing occurs because my chosen skin for vlc starts with a black background. As far as terminals are concerned all I do is change the default background to dark grey and the interference disappears.

This is no showstopper, more of a curiosity; either one watches a video or works in a terminal but maybe it implies a fundamental problem in, what, the display driver, Firefox, the GNOME shell? Does it merit a bug report? Does anybody else see this behaviour?

All the updates have been applied, no other problems.

Re: Ghosting of Firefox videos

PostPosted: May 2nd, '12, 20:34
by doktor5000
This is a problem with flash-player itself, workarounds include disabling hardware acceleration or doing something like
Code: Select all
VDPAU_NVIDIA_NO_OVERLAY=1
in the same session which the browser runs in or using available alternatives to adobe's flash, like gnash or lightspark or HTML5. For further information have a look at https://bbs.archlinux.org/viewtopic.php?id=137877&p=4 or the comments in http://sources.gentoo.org/cgi-bin/viewv ... es/mms.cfg

Re: Ghosting of Firefox videos

PostPosted: May 3rd, '12, 07:40
by tarazed
Thanks doktor5000. You deserve a gold star for all your helpful replies. Will explore the possibilities.

Re: Ghosting of Firefox videos

PostPosted: May 3rd, '12, 20:12
by doktor5000
tarazed wrote:Thanks doktor5000. You deserve a gold star for all your helpful replies.

Well, others say that i deserve a beating or i should stick my opinion to myself. Nevertheless i'm glad my post was helpful.