Re: [Linux-fbdev-devel] radeonfb cannot map FB

[Alex D. <ale...@gm...>]

On Mon, Aug 24, 2009 at 3:45 PM, Rui Santos<rs...@gr...> wrote:
> Dear Benjamin Herrenschmidt, dear mailing list subscribers,
>
>     I'm trying to load radeonfb for an RV100 QY chipset. Whatever I
> type in the modprobe I always get:
>       radeonfb (0000:01:0c.0): cannot map FB
>       radeonfb: probe of 0000:01:0c.0 failed with error -5
>
>    I've tried latest 2.6.27.x and 2.6.30.x kernels. This a secondary
> video card that I would like to connect a monitor to. The first video
> card is an Intel 915G, which is working with vesafb.
>
>    Here is the output of lspci -vvv
>    01:0c.0 VGA compatible controller: ATI Technologies Inc Radeon RV100
> QY [Radeon 7000/VE] (prog-if 00 [VGA controller])
>            Subsystem: ATI Technologies Inc Device 013b
>            Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping+ SERR- FastB2B- DisINTx-
>            Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
>>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>            Interrupt: pin A routed to IRQ 18
>            Region 0: Memory at d8000000 (32-bit, prefetchable) [size=128M]
>            Region 1: I/O ports at dc00 [size=256]
>            Region 2: Memory at fdee0000 (32-bit, non-prefetchable)
> [size=64K]
>            [virtual] Expansion ROM at fde00000 [disabled] [size=128K]
>            Capabilities: [50] Power Management version 2
>                    Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                    Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>            Kernel modules: radeonfb
>
>    Can you or anyone give a hint on what I might be doing wrong:
> modprobe radeonfb mode_option=800x600-16 panel_yres=600
>    Or could this be some kind of hardware issue ?

radeonfb doesn't currently have any code to post secondary x86 cards
so they won't work unless they have been posted by the system bios.

Alex