Hi,

I just did a fresh install of the 3.0 i386 distribution (due to 
circumstances..)
on my amd64 machine. This combination "used to work" like a charm
under 2.0, 2.02 and 3.0BETA, but now I'm (out of the blue) experiencing
similar quircks as Anne:

Starting X a second time (as in typing startx, leaving X and typing startx
again) results in a hard hang - including the front power switch
becoming unresponsive. The last log entries in my XFree86.0.log are:

(II) Loading sub module "i2c"
(II) LoadModule: "i2c"
(II) Loading /usr/X11R6/lib/modules/libi2c.a
(II) Module i2c: vendor="The XFree86 Project"
    compiled for 4.5.0, module version = 1.2.0
    ABI class: XFree86 Video Driver, version 0.8
(II) RADEON(0): I2C bus "DDC" initialized.
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): DDC Type: 2, Detected Type: 3
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): DDC Type: 3, Detected Type: 0
(II) RADEON(0): DDC Type: 4, Detected Type: 0
(constantly syncing the fs helps in getting these at all)

Normally my suggestion would be to follow up on this issue on a different
mailing list, however, another *athlon* system, also with a new, stock 3.0
install, does NOT have this problem (the videocard is a different ATI 
one, but
I could try to swap to see if it makes any difference)

relevant parts of the dmesg output:

NetBSD 3.0 (GENERIC) #0: Mon Dec 19 01:04:02 UTC 2005
builds@works.netbsd.org:/home/builds/ab/netbsd-3-0-RELEASE/i386/200512182024Z-obj/home/builds/ab/netbsd-3-0-RELEASE/src/sys/arch/i386/compile/GENERIC
total memory = 1023 MB
avail memory = 993 MB
BIOS32 rev. 0 found at 0xfb8b0
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: AMD Unknown K7 (Athlon) (686-class), 2010.14 MHz, id 0xfc0
cpu0: features 78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features 78bfbff<PGE,MCA,CMOV,PAT,PSE36,MPC,MMX>
cpu0: features 78bfbff<FXSR,SSE,SSE2>
cpu0: "AMD Athlon(tm) 64 Processor 3000+"
vga1 at pci1 dev 0 function 0: ATI Technologies Radeon 7500 (rev. 0x00)

and

NetBSD 3.0 (GENERIC) #0: Mon Dec 19 01:04:02 UTC 2005
builds@works.netbsd.org:/home/builds/ab/netbsd-3-0-RELEASE/i386/200512182024Z-obj/home/builds/ab/netbsd-3-0-RELEASE/src/sys/arch/i386/compile/GENERIC
total memory = 511 MB
avail memory = 492 MB
BIOS32 rev. 0 found at 0xf1960
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: AMD Athlon XP 2400+ (686-class), 1990.32 MHz, id 0x681
cpu0: features c3c3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features c3c3fbff<PGE,MCA,CMOV,PAT,PSE36,MMXX,MMX>
cpu0: features c3c3fbff<FXSR,SSE,3DNOW2,3DNOW>
cpu0: "AMD Athlon(TM) XP 2400+"
cpu0: I-cache 64 KB 64B/line 2-way, D-cache 64 KB 64B/line 2-way
cpu0: L2 cache 256 KB 64B/line 16-way
cpu0: ITLB 16 4 KB entries fully associative, 8 4 MB entries fully 
associative
cpu0: DTLB 32 4 KB entries fully associative, 8 4 MB entries 4-way
cpu0: 8 page colors
vga1 at pci1 dev 0 function 0: ATI Technologies Radeon 7000/VE (rev. 0x00)

Anyone else with an AMD64 cpu and ATI video card experiencing similar
problems? or am I on the wrong track here?

regards, Theo