My system is an Intel 4770K with a Nvidia GTX 760 running Ubuntu and Hackintosh. I upgraded Ubuntu from 13.10 to 14.04 last week and ever since I have constant tearing when there is movement in PlexHT (1.0.13.dev-git), both the interface as with the video. When I play the same video with VLC there is no problem whatsoever. Games also seem to run smoothly. When I boot into my hackintosh installation, PlexHT works flawlessly.
When I google for tearing problems in Ubuntu, the results are for systemwide problems and usually solved by checking Sync to VBlank in the Nvidia X Server Settings or changing the refreshrate (24, 50 or 60hz). But unfortunately this doesn't solve my problem.
I also tried installing different drivers. In addition I tried the ones added by ppa:xorg-edgers/ppa but again, no result. Because the tearing only happens with PlexHT, I also tried a couple of things in the preferences:
Advanced Video: Adjust display refresh to match video, sync playback to display, different video render methods, hardware acceleration, Vertical blank sync. None of them had any effect.
Then I thought it might be some weird settings from the older installation. So I installed a fresh copy of Ubuntu 14.04 and PlexHT on another HDD. But again, the same problem. Tried everything on the fresh new system that I tried on the updated one. But no results.
I hope someone can help.
Edit:
On the Ubuntu forums there is also someone who seems to have the same problem with XBMC. On the XBMC forum I could only find this, which I tried. But solution 1 was already checked and after implementing solution 2 Unity didn't work anymore after rebooting, so I removed that.
Had the same issue after updating to 14.04 (HP N40L server + GT 610 GPU, latest nvidia drivers, no issues previously). I use Lubuntu and found that installing the compton compositor and enabling vsync (as described here http://ubuntuforums.org/showthread.php?t=2144468) worked. Of course this is for Lubuntu, which uses a differnt desktop environment, so probably no use for you but might point you in the right direction.
I'm having the same issue but don't use any sort of window manager. Nvidia GT 610 card on an Ubuntu system and I've tried various Nvidia drivers without much luck so far.
I'm having the same issue but don't use any sort of window manager. Nvidia GT 610 card on an Ubuntu system and I've tried various Nvidia drivers without much luck so far.
I rebuilt my SteamOS to ubuntu 14.04 and the screen tearing is absolutely terrible. Tried messing around with nvidia settings with no help. I'll sferran's link and report back.
Edit: using a i3 2nd gen and a nvidia 560 ti gfx card.
I still can't believe Canonical released 14.04 as a LTS. 13.10 was a much more stable release. Adding -bs worked for me as well. Still having lots of other problems with Ubuntu but at least Plex seems to be working again.
Thank you! (Sorry for the late reply, I've been quite busy with work)
I'm having the same issue but don't use any sort of window manager. Nvidia GT 610 card on an Ubuntu system and I've tried various Nvidia drivers without much luck so far.
It looks like the root cause was a bug in libsdl1.2debian. I have found that there is an update today for this package and it has corrected my problem and I no longer need to use the -bs switch.
And here I was thinking by videos were just encoded badly. :)
