Vertical motion lines on video playback, all versions/hardware.

Stephen Michael Kellat skellat at
Wed Jul 23 00:19:56 UTC 2014

On Tue, 22 Jul 2014 17:32:47 -0500
Jeff Hanson <jeff at> wrote:

> When there is a lot of motion in a video being played back in
> Xubuntu, we get vertical lines that scroll somewhat on the screen.
> This is apparent on all types of laptops/graphics cards. VLC,
> Firefox, etc. This doesn't seem to be the case on regular Ubuntu.
> This is currently the most pressing concern for us to not use Xubuntu
> in our labs. We obviously want to continue to do so obviously. Has
> this issue come up already?
> It's not totally obvious at first, but is a consistent problem we've
> noticed over the past year.
> Would love to hear some thoughts!
> Thank You!
> Jeff Hanson
> 6087519139

Jeff, which way are the lines scrolling?  Based off the description you're giving and knowing that Project: Community Computers refurbishes old machines it may be the machine processing power not keeping up with the video display processes.  It may also be a difference in graphics stack between Xubuntu and mainline that was expected to emerge at some point.  The way the lines scroll can help us narrow this down.

Stephen Michael Kellat

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