I have the same exact problem, except with Gutsy instead of Hardy. I
have a system with an i815 chipset and a GeForce 6600GT AGP graphics
card. (I know, my chipset (and processor) are way to slow for my GFX
card, but this would not cause my problem.) I have tried with both the
agpgart driver and the NvAGP driver, neither works.) I know my chipset
does not support AGP Fast Writes, but I am only trying to enable SBA,
which I know it does support.
Here is the revelant output from lspci -vv
00:00.0 Host bridge: Intel Corporation 82815 815 Chipset Host Bridge and Memory
Controller Hub (rev 02)
Subsystem: ASUSTeK Computer Inc. TUSL2-C Mainboard
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR-
Latency: 0
Region 0: Memory at f8000000 (32-bit, prefetchable) [size=64M]
Capabilities: [88] Vendor Specific Information
Capabilities: [a0] 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=1 ArqSz=0 Cal=0 SBA- AGP+ GART64- 64bit- FW- Rate=x4
And from the NVIDIA status stuff:
[EMAIL PROTECTED]:~$ cat /proc/driver/nvidia/agp/card
Fast Writes: Supported
SBA: Supported
AGP Rates: 4x 2x 1x
Registers: 0x1f000217:0x1f000104
[EMAIL PROTECTED]:~$ cat /proc/driver/nvidia/agp/host-bridge
Host Bridge: PCI device 8086:1130
Fast Writes: Not Supported
SBA: Supported
AGP Rates: 4x 2x 1x
Registers: 0x1f000207:0x00000104
[EMAIL PROTECTED]:~$ cat /proc/driver/nvidia/agp/status
Status: Enabled
Driver: NVIDIA
AGP Rate: 4x
Fast Writes: Disabled
SBA: Disabled
** Attachment added: "dmesg"
http://launchpadlibrarian.net/11960078/dmesg
--
enabling fastwrites and SBA
https://bugs.launchpad.net/bugs/189867
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