OK, i finally found the time to complete a VDR PC
based on the ION board.

The good news are:

+ 1080p plays back smoothly with xine/vdpau
 with very low CPU usage.
+ sound over HDMI works.
+ the streamdev-client plugin works - even with HD channels.
+ the xine plugin works fine - also with HD channels and HD
 recordings. I had to tweak a few config items.

The not-so-good news are:

+ The fan is a bit loud and so far I have not found
 a silent replacement fan.
+ I originally set up the system as a diskless (nfsroot)
 system, but KDE 4 (I am using OpenSuSE 11.2) performs
 unbearably slow, so I was forced to install a hard disk.

So, as it turns out, I do not need a DVB card in the PC
(the server has 2 DVB-S cards and one DVB card).
If I keep it that way, I really do not need the PCI slot,
so I could use one of these passively cooled main boards

I currently use this (actively cooled) main board:

Using a passively cooled main board would solve the
fan noise problem.

I also finally setted up my ion system.
I have a similar kind of passive cooled zotac that you put in your links but found out that without any cooling it's temperature get still pretty hight 60-65 celcius.

The included 4 inch fan was indeed pretty noisy, so I invested for a 8 inc fan and put that to my own made wooden case. (I first used old case from broken video, but that one had about 30 cm extra width, so I ended up making my own case)

With this 8 inch fan, the cpu and mcu temperatures are now about 40 celcius.

If you are interested, I put a picture on

For some reason the "--video vdpau" option for vdr-sxfe still does not work for me... (Using mandriva 2010 version of everything else except from own build vdr-1.7.10 and couple od days old xineliboutput plugin with latest fix being: Fixed generating lirc key release events)
). gdb crash log is below:

(gdb) set args xvdr+tcp:// --video vdpau
(gdb) run
Starting program: /usr/local/bin/vdr-sxfe xvdr+tcp:// --video vdpau
[Thread debugging using libthread_db enabled]
vdr-sxfe 1.0.90-cvs  (build with xine-lib 1.1.16, using xine-lib 1.1.16)

Video driver: vdpau
VDR Server: xvdr+tcp://

[New Thread 0x7fa4ab9af6f0 (LWP 10536)]
[10536] [vdr-fe]    GNOME screensaver disabled
[New Thread 0x7fa4a3514910 (LWP 10545)]
[10536] [vdr-fe]    fe_xine_init: xine_open_video_driver("vdpau") failed
Error initializing xine
[Thread 0x7fa4a3514910 (LWP 10545) exited]

Program received signal SIGSEGV, Segmentation fault.
0x00007fa4aa5e2cad in pthread_mutex_lock () from /lib64/libpthread.so.0
Missing debug package(s), you should install: dbus-debug-1.2.16-2mdv2010.0.x86_64 dbus-glib-debug-0.82-1mdv2010.0.x86_64 faac-debug-1.28-3plf2010.0.x86_64 faad2-debug-2.7-1plf2009.1.x86_64 gcc-debug-4.4.1-4.1mnb2.x86_64 glib2.0-debug-2.22.2-2mdv2010.0.x86_64 glibc-debug-2.10.1-6.2mnb2.x86_64 lame-debug-3.98.2-1plf2009.0.x86_64 libalsa2-debug-1.0.21a-1mdv2010.0.x86_64 libcdio-debug-0.81-5mdv2010.0.x86_64 libdvdcss-debug-1.2.10-2plf2010.0.x86_64 libjpeg-debug-7-5mdv2010.0.x86_64 libogg-debug-1.1.4-2mdv2010.0.x86_64 libtheora-debug-1.1.0-1mdv2010.0.x86_64 libvorbis-debug-1.2.3-1mdv2010.0.x86_64 libx11-debug-1.2.2-2mdv2010.0.x86_64 libxau-debug-1.0.5-1mdv2010.0.x86_64 libxcb-debug-1.4-3.2mdv2010.0.x86_64 libxcursor-debug-1.1.10-1mdv2010.0.x86_64 libxdmcp-debug-1.0.3-1mdv2010.0.x86_64 libxext-debug-1.0.5-1mdv2010.0.x86_64 libxfixes-debug-4.0.3-5mdv2010.0.x86_64 libxinerama-debug-1.0.3-3mdv2010.0.x86_64 libxrandr-debug-1.3.0-2mdv2010.0.x86_64 libxrender-debug-0.9.4-5mdv2010.0.x86_64 pcre-debug-7.9-1mdv2010.0.x86_64 real-codecs-debug-1.2-4plf2010.0.x86_64 vcdimager-debug-0.7.23-9mdv2010.0.x86_64 xine-lib-debug- zlib-debug-1.2.3-13mdv2010.0.x86_64
(gdb) bt
#0 0x00007fa4aa5e2cad in pthread_mutex_lock () from /lib64/libpthread.so.0
#1  0x00007fa4a9a09773 in xine_list_video_output_plugins ()
   from /usr/lib64/libxine.so.1
#2  0x000000000040cc80 in list_plugins_type (xine=0x1,
    msg=0x416993 "Available video drivers:",
    list_func=0x7fa4a9a09740 <xine_list_video_output_plugins>)
    at xine_frontend.c:107
#3  0x000000000040cd57 in list_xine_plugins (fe=<value optimized out>,
    verbose=0) at xine_frontend.c:125
#4  0x0000000000412648 in main (argc=<value optimized out>,
    argv=0x7fff415c6e08) at xine_frontend_main.c:749


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