Just to confirm further that this bug is really with Xv in the intel driver, we can try using Totem.
First, you will need to enable the Multimedia Systems Selector in the menu. Go to System > Preferences > Main Menu. Select System > Preferences in the right pane of the menu editor, and tick the checkbox next to "Multimedia Systems Selector" in the right pane. Click the Close button.
Now open System > Preferences > Multimedia Systems Selector, go to the Video tab and select "X Window System (No Xv)" in the Default Output > Plugin drop-down menu. Click the Close button to finish.
Then, test playing videos and mp3 again using Totem. Does it still crashes?
Just to confirm further that this bug is really with Xv in the intel driver, we can try using Totem.
First, you will need to enable the Multimedia Systems Selector in the menu. Go to System > Preferences > Main Menu. Select System > Preferences in the right pane of the menu editor, and tick the checkbox next to "Multimedia Systems Selector" in the right pane. Click the Close button.
Now open System > Preferences > Multimedia Systems Selector, go to the Video tab and select "X Window System (No Xv)" in the Default Output > Plugin drop-down menu. Click the Close button to finish.
Then, test playing videos and mp3 again using Totem. Does it still crashes?