[Xen-users] GLX in PV domU

[SZABO Zsolt <szazs@xxxxxxxxx>]

xen-3.2.1
kernel-2.6.18
dom0 x64 (Dual-Core AMD Opteron(tm) Processor 8220)
domU 32bit: 2.6.18 kernel debian 5.0 (lenny) on lvm partitions

The domU was created by xen-create-image from xen-tools.

Inside the domU I have installed the X related packages
(xfce4, gdm, etc.) with aptitude.

Now, when I login via "ssh -X", I can start xclock and other X 
applications, but when trying to start glxgears or glxinfo I get:
$ glxgears
libGL: XF86DRIGetClientDriverName: 4.0.1 r200 (screen 0)
libGL: OpenDriver: trying /usr/lib/dri/r200_dri.so
glxgears: ../../src/xcb_io.c:461: _XRead: Assertion `dpy->xcb->reply_data 
!= 0' failed.
Aborted

What is missing? Or is it possible to use OpenGL applications (remotely) 
inside a domU at all?
Btw. has anybody here experience with *remote* (not xen related) OpenGL 
apps? I usually face two kinds of message:
libGL error: open DRM failed (Operation not permitted)
libGL error: reverting to (slow) indirect rendering

or

libGL error: open XF86DRIAuthConnection failed (Operation not permitted)
libGL error: reverting to (slow) indirect rendering
(but in this case the application seems to run...)

--
Zsolt

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