On Mon, 2010-02-22 at 05:38 -0600, Jonathan Nieder wrote: > Sam Morris wrote: > > > Both systems are, in case it matters, VirtualBox virtual machines. > > Sounds like clutching at straws though... unless there's something about > > the capabilities of the vboxvideo X11 driver that causes applications to > > behave differently. > > > > I thought I'd try using xtrace to see the conversation between the > > client and server: > [...] > > Hmm. wait a minute... no SECURITY extension on my display? According to > > xdpyinfo it is so. I have xserver-xorg-core 2:1.7.4-2; would you mind > > telling me which version you have, and whether SECURITY shows up in the > > output of xdpyinfo? > > I have xserver-xorg-core 2:1.7.5-1. SECURITY doesn’t show up in > xdpyinfo, and if I try “startx -- :1 +extension nonsense”, I learn that > the server doesn’t even know about it: > > [mi] Extension "nonsense" is not recognized > [mi] Only the following extensions can be run-time enabled: > [mi] Generic Events > [mi] Composite > [mi] DAMAGE > [mi] DOUBLE-BUFFER > [mi] DPMS > [mi] GLX > [mi] MIT-SCREEN-SAVER > [mi] MIT-SHM > [mi] RANDR > [mi] RENDER > [mi] X-Resource > [mi] XFree86-DGA > [mi] XFree86-DRI > [mi] XFree86-VidModeExtension > [mi] XFIXES > [mi] XINERAMA > [mi] SELinux > [mi] XTEST > [mi] XVideo > > I get the impression from the following thread that it should have > shown up in that list if this build of X supported it. > > http://lists.freedesktop.org/archives/xdg/2008-December/010104.html > > The more interesting relevant change I can find in the xserver-xorg-core > changelog is > > commit 1c6cb353f77747c101ce47716ff1fa055fbf85a4 > Author: Eamon Walsh <ewa...@tycho.nsa.gov> > Date: Thu Nov 8 16:46:49 2007 -0500 > > Restore the XC-SECURITY option in configure.ac, but disabled by > default. > > which is long before 1.7.4. It seems XC-SECURITY (is that the same as > X11 SECURITY?) was being phased out and XACE phased in. > > Unfortunately, I know nothing about these things, so I cannot say what > is expected behavior, what is wrong, what should be the same between > different systems, and so on. > > Sorry I cannot be of more help. I’ll try downgrading to X from testing > and see if that helps reproduce this. > > Jonathan
Thanks for looking into this. Looking at the debian/rules file for the current xorg-server package shows that --disable-xcsecurity is passed in, so the extension is indeed disabled. Feel free to close this bug if you like, and I'll bring it up again if the SECURITY extension ever comes back. -- Sam Morris <s...@robots.org.uk> -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
