With CVS HEAD as of about a week ago, running xmame with option -x11 2 or option -x11 3 (Xv mode windowed or Xv mode full screen), the server dies when the game starts putting it's first pitcure on screen. I didn't have a chance yet to check if it's related to the new DMA/Xv code in the Radeon driver though, it could be something else. mplayer/xine/vlc do work fine with Xv though.
First an introduction, I'm one of the xmame programmers. I myself have been using a radeon for quite some time now in both 32 and 64 bit x86 machines and xmame works fine in Xv mode these days. This could be due to chances on xmames side but is most likely because the bug has been fixed in more rescent Xorg releases, either way the bug is gone, closing.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.