Are you sure fbcon is using your framebuffer?  Check lsmod output.
If fbcon is using the driver, and your kernel did not crash

telnet 192.168.2.150
Trying 192.168.2.150...
Connected to 192.168.2.150.
Escape character is '^]'.


welcome on your dreambox! - Kernel 2.6.9 (17:49:20).
dreambox login: root
Password:


BusyBox v1.01 (2005.09.08-20:13+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ > cd /tmp
/tmp > ls -l *.ko
-rw-r--r--    1 root     root        39224 Sep 16 17:49 fbcon.ko
-rw-r--r--    1 root     root         9236 Sep 16 17:49 font.ko
/tmp > lsmod
Module                  Size  Used by
usbhid 22016 0 - Live 0xc389e000
head 338412 45 - Live 0xc38c9000
/tmp > insmod ./font.ko
/tmp > insmod ./fbcon.ko
/tmp > lsmod
Module                  Size  Used by
fbcon 31732 65 - Live 0xc391d000
font 7008 1 fbcon, Live 0xc3896000
usbhid 22016 0 - Live 0xc389e000
head 338412 46 - Live 0xc38c9000

head is used 45 times and after loading fbcon, 46 times, so i think,
fbcon is using the driver.

then that closed source driver is already implementing all the drawing
functions needed by fbcon.

i don't think so:

nm head.ko | grep pfb
000125bc t pfb_check_var
00003a28 d pfb_default
00000000 t pfb_fix
00012c50 t pfb_pan_display
0001edb0 b pfb_pseudo_palette
00012798 t pfb_set_par
00012af4 t pfb_setcolreg

Check the output of fbset -i and post it here.

/tmp > ./fbset -i

mode "720x576-171"
    # D: 50.000 MHz, H: 54.825 kHz, V: 170.793 Hz
    geometry 720 576 720 576 8
    timings 20000 64 64 32 32 64 2
    laced true
    rgba 8/16,8/8,8/0,8/24
endmode

Frame buffer device information:
    Name        : Pallas FB
    Address     : 0xa0901000
    Size        : 2093056
    Type        : PACKED PIXELS
    Visual      : PSEUDOCOLOR
    XPanStep    : 1
    YPanStep    : 1
    YWrapStep   : 1
    LineLength  : 720
    Accelerator : No

Why don't you ask IBM?

actually, the driver does not come from ibm, but from dream
multimedia, an stb manufacturer, i asked them, and they said, they
cannot answer any questions about drivers because they have a non
disclosure agreement with ibm. ;-)


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