Re: [Linux-fbdev-users] matrox g550 problem (video RAM is not available in PCI address space)

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TAMAS Gergely wrote:
> Hi,
> 
>  > What 'lspci -vvv -s 01:00.0' reports ?
> 
> Sorry, here is the output again, run as root :
> 
> 0000:01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G550 AGP (rev 01) (prog-if 00 [VGA])
> 	Subsystem: Matrox Graphics, Inc. Millennium G550 Dual Head DDR 32Mb
> 	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> 	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> 	Latency: 32 (4000ns min, 8000ns max), Cache Line Size: 0x08 (32 bytes)
> 	Interrupt: pin A routed to IRQ 3
> 	Region 0: Memory at <ignored> (32-bit, prefetchable)

Your system did not assign base address to the videoram, and neither
kernel PCI subsystem did that.  Try complaining at
lin...@vg..., or maybe to your BIOS vendor.  Maybe
that `dmesg` output would reveal why BIOS/kernel failed to assign MMIO range
to your hardware due to insufficient resources.  If you have 'MMIO hole'
setting in the BIOS, try setting it to 2GB instead of 1GB you are (probably)
currently using.

> 	Region 1: Memory at d8000000 (32-bit, non-prefetchable) [size=16K]
> 	Region 2: Memory at d9000000 (32-bit, non-prefetchable) [size=8M]
> 	Expansion ROM at db000000 [disabled] [size=128K]
> 	Capabilities: [dc] Power Management version 2
> 		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> 		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> 	Capabilities: [f0] AGP version 2.0
> 		Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4
> 		Command: RQ=32 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x1

								Petr Vandrovec