Messages in this thread | | | Date | Sat, 12 Jul 2003 17:51:42 +0200 | From | Jan Dittmer <> | Subject | agpgart, nforce2, radeon and agp fastwrite |
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Hi,
just took me half a hour to figure out. On nforce2 you have to disable agp fastwrites, otherwise X locks hard on startup with the following (from serial console).
Linux agpgart interface v0.100 (c) Dave Jones agpgart: Detected NVIDIA nForce2 chipset agpgart: Maximum main memory to use for agp memory: 816M agpgart: AGP aperture is 128M @ 0xd0000000 [drm] Initialized radeon 1.9.0 20020828 on minor 0 agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0. agpgart: Putting AGP V2 device at 0000:00:00.0 into 2x mode agpgart: Putting AGP V2 device at 0000:02:00.0 into 2x mode
No response, neither by ping, nor sysrq or anything else. just dead. I already defined AGP_DEBUG in agp.h but that doesn't make it noisier.
# lspci -v 02:00.0 VGA compatible controller: ATI Technologies Inc Radeon R200 QL [Radeon ) Subsystem: Hercules: Unknown device 0000 Flags: bus master, stepping, 66Mhz, medium devsel, latency 32, IRQ 5 Memory at d8000000 (32-bit, prefetchable) [size=128M] I/O ports at a000 [size=256] Memory at e2000000 (32-bit, non-prefetchable) [size=64K] Expansion ROM at <unassigned> [disabled] [size=128K] Capabilities: [58] AGP version 2.0 Capabilities: [50] Power Management version 2
Without AGP Fastwrites turned on, it all works wonderful. Just if anybody encounters the same problem. Mainboard is nForce2 based, graphics is radeon 8500le (R200).
Jan
-- Linux rubicon 2.5.75-mm1-jd1 #2 SMP Fri Jul 11 12:49:37 CEST 2003 i686
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