Mplayer throws out an error when trying to play a video saying with the following: Error opening/initializing the selected video_out (-vo) device This happens for the following video devices: x11, xvidix Appears to work properly with gl2, except when in double size or full screen Reproducible: Always Steps to Reproduce: 1. Emerge mplayer 1.0_pre5-r2 2. Start playing a video using the x11 video device. 3. Expected Results: Worked properly. Portage 2.0.50-r9 (default-x86-1.4, gcc-3.3.4, glibc-2.3.4.20040619-r0, 2.6.7-mm6) ================================================================= System uname: 2.6.7-mm6 i686 mobile AMD Athlon(tm) XP2500+ Gentoo Base System version 1.5.1 distcc 2.16 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] ccache version 2.3 [enabled] Autoconf: sys-devel/autoconf-2.59-r4 Automake: sys-devel/automake-1.8.5-r1 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-O2 -march=athlon-xp -pipe" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.2/share/config /usr/kde/3.3/share/config /usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=athlon-xp -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache sandbox" GENTOO_MIRRORS="http://gentoo.oregonstate.edu http://distro.ibiblio.org/pub/Linux/distributions/gentoo" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="3dnow 3dnowext X acpi alsa cups dvd encode esd foomatic foomaticdb gnome gnome2 gtk gtk2 java jpeg mmx mmx2 mozilla nls opengl pcmcia samba sse truetype unicode usb video_cards_radeon x86 xmms"
hmm, gl2 seems to work fullscreen here. Also, can you paste the error messages your getting?
Please provide more information regarding the issue as discussed in the above comment.