These logs from DM520. I think you can find vu in the logs because I tried to access the vu+zero with dreambox control center (dcc) while the DM520 connected.
But these are from DM520.
14:16:24.1103 [ ] gdi/lcd.cpp:41 setSize [eLCD] (132x64x8) buffer 0x972d00 8448 bytes, stride 132, boxtype: dm520
Anyway, thanks for everything.