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Mplayer do_connect And VDPAU Error Messages

Published on 04 March, 2021 by Amanda
Running mplayer from a terminal plays the video and audio correctly, but outputs the following errors:
$ mplayer -really-quiet [filename] do_connect: could not connect to socket connect: No such file or directory Failed to open VDPAU backend libvdpau_va_gl.so: cannot open shared object file: No such file or directory

Solving do_connect error

Reference: https://ubuntuforums.org/showthread.php?t=2213319

Open $HOME/.mplayer/config and add the following:

Solving VDPAU backend error

Reference: https://bbs.archlinux.org/viewtopic.php?id=197448

Open terminal and run the following:
sudo apt-get install libvdpau-va-gl1
Note: This solves the specific library error shown above. Other library related errors may occur that can be solved by finding and installing the correct library, or creating a symlink to an already existing library file as discussed in the reference link.