Video screen tearing in Ubuntu

[3x5]

Hi there, I'm running XnView 0.92, and it's working great, except that I'm getting screen tearing when I play videos inside the program.

I'm running compiz with openGL, and I can confirm that vlc and gthumb both playback video without tearing. Any ideas? Thanks.

[3x5]

Other problems that seem to be related to video:

• Videos don't always load thumbnails. Sometimes half the videos in a directory won't have thumbnails, even if they're all the same format.
• Xnview crashes when browsing through videos: Segmentation fault (core dumped)
• When I play a video, then stop, go back to browsing thumbs, and try to go to a different directory, the application freezes. I'll post some of the cli messages below.

Code: Select all

"(repeat 1)setInSize => calculating aspect ratio from converted input data(1.777778)\nDemux thread stops running...."
"demuxer thread emit finished. repeat: -1/0"
"avplayer emit stopped()"
"Can not copy codec properties when it's open"
"(repeat 1)Can not copy codec properties when it's open\nclosing d->format_ctx"
"all audio/video threads stopped... state: 0"
"Not playing~"
"(repeat 2)Not playing~\nalcDestroyContext(0x2af2820)"
"alcCloseDevice(0x2aaeae0)"
"~AVThreadPrivate wake up paused thread"
## ~MyPreviewThread (0x2acee80)
## ~MyPreviewThread aborted
## ~MyPreviewThread wakeOne done
m_mutex.lock()
m_mutex.lock() ok
## MyPreviewThread :: run finish
## ~MyPreviewThread ok
"(repeat 1)~AVThreadPrivate wake up paused thread\nAVClock started!!!!!!!!"
### ThumbLoaderThread :: setFirstItemToLoad
 ** start condition wake one 3
### ThumbLoaderThread :: setFirstItemToLoad ok
### ThumbLoaderThread :: setFirstItemToLoad
 ** start condition wake one 3
### ThumbLoaderThread :: setFirstItemToLoad ok
### ThumbLoaderThread :: setFirstItemToLoad
 ** start condition wake one 3
### ThumbLoaderThread :: setFirstItemToLoad ok
setPathname </media/user/Camera/2018/06/>
ThumbLoaderThread :: stop()

[xnview]

could you send me a video that thumbnail is not built?