I suspect that this maybe needs to be reported and resolved upstream with mplayer, but frankly the mplayer guys are too scary for me to try dealing with.
Anyway, I've just installed the brand new updtates of libpostproc, mplayer and mplayer-gui from rpm.livna.org:
Previous version of all three: 1.0-0.lvn.0.12.pre4.2 Updated version: 1.0-0.lvn.0.13.pre5.2
In gmplayer, right-clicking on a playing video and choosing "Double size" no longer has any effect. "Normal size" and "Full screen" both work as expected. If in full screen mode I right-click and select "Double size" the window returns to normal size.
Is anyone else seeing this?
Yes, I am seeing this too. I just put xy=2 in the config file ~/.mplayer/config so that all my movies start double sized.
Not really a fix but suits me.
-- Redmond, we have a problem.