I tried OpenBSD 4.8 on my new computer (dmesg was sent to dmesg@ before; is also appended below), but several things don't work, including X (I can send the Xorg log if someone is interested), below is an addition of the pci id.
Index: pcidevs =================================================================== RCS file: /home/ca/OpenBSD/cvs/src/sys/dev/pci/pcidevs,v retrieving revision 1.1583 diff -u -r1.1583 pcidevs --- pcidevs 3 Jan 2011 06:58:24 -0000 1.1583 +++ pcidevs 8 Jan 2011 17:19:36 -0000 @@ -1360,6 +1360,7 @@ product ATI RADEON_HD4200_HDA 0x970f Radeon HD 4200 HD Audio product ATI RADEON_HD4200 0x9710 Radeon HD 4200 product ATI RADEON_HD4200_M 0x9712 Mobility Radeon HD 4200 +product ATI RADEON_HD4250 0x9715 Radeon HD 4250 product ATI RADEON_HD2600_HDA 0xaa08 Radeon HD 2600 HD Audio product ATI RS690M_HDA 0xaa10 RS690M HD Audio product ATI RADEON_HD3870_HDA 0x0018 Radeon HD 3870 HD Audio OpenBSD 4.8 (GENERIC.MP) #335: Mon Aug 16 09:09:20 MDT 2010 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 3486973952 (3325MB) avail mem = 3380334592 (3223MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.5 @ 0x9f000 (64 entries) bios0: vendor American Megatrends Inc. version "1007" date 03/25/2010 bios0: ASUSTeK Computer INC. M4A88TD-M acpi0 at bios0: rev 2 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP APIC MCFG OEMB HPET SSDT acpi0: wakeup devices PCE2(S4) PCE3(S4) PCE5(S4) PCE6(S4) PCE7(S4) PCE9(S4) PCEA(S4) RLAN(S4) SBAZ(S4) P0PC(S4) GEC_(S4) UHC1(S4) UHC2(S4) USB3(S4) UHC4(S4) USB5(S4) UHC6(S4) UHC7(S4) PS2M(S4) PS2K(S4) UAR1(S4) acpitimer0 at acpi0: 3579545 Hz, 32 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD Phenom(tm) II X6 1055T Processor, 2812.85 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu0: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu0: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative cpu0: apic clock running at 200MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: AMD Phenom(tm) II X6 1055T Processor, 2812.47 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu1: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu1: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative cpu2 at mainbus0: apid 2 (application processor) cpu2: AMD Phenom(tm) II X6 1055T Processor, 2812.47 MHz cpu2: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu2: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu2: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu2: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative cpu3 at mainbus0: apid 3 (application processor) cpu3: AMD Phenom(tm) II X6 1055T Processor, 2812.47 MHz cpu3: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu3: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu3: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu3: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative cpu4 at mainbus0: apid 4 (application processor) cpu4: AMD Phenom(tm) II X6 1055T Processor, 2812.47 MHz cpu4: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu4: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu4: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu4: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative cpu5 at mainbus0: apid 5 (application processor) cpu5: AMD Phenom(tm) II X6 1055T Processor, 2812.47 MHz cpu5: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu5: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 512KB 64b/line 16-way L2 cache cpu5: ITLB 32 4KB entries fully associative, 16 4MB entries fully associative cpu5: DTLB 48 4KB entries fully associative, 48 4MB entries fully associative ioapic0 at mainbus0: apid 6 pa 0xfec00000, version 21, 24 pins acpihpet0 at acpi0: 14318180 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 1 (P0P1) acpiprt2 at acpi0: bus -1 (PCE2) acpiprt3 at acpi0: bus -1 (PCE3) acpiprt4 at acpi0: bus -1 (PCE5) acpiprt5 at acpi0: bus -1 (PCE6) acpiprt6 at acpi0: bus 2 (PCE9) acpiprt7 at acpi0: bus 3 (PCEA) acpiprt8 at acpi0: bus 4 (P0PC) acpiec0 at acpi0 acpicpu0 at acpi0: PSS acpicpu1 at acpi0: PSS acpicpu2 at acpi0: PSS acpicpu3 at acpi0: PSS acpicpu4 at acpi0: PSS acpicpu5 at acpi0: PSS aibs0 at acpi0 acpibtn0 at acpi0: PWRB pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "AMD RS780 Host" rev 0x00 ppb0 at pci0 dev 1 function 0 vendor "Asustek", unknown product 0x9602 rev 0x00 pci1 at ppb0 bus 1 vga1 at pci1 dev 5 function 0 vendor "ATI", unknown product 0x9715 rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) azalia0 at pci1 dev 5 function 1 "ATI Radeon HD 4200 HD Audio" rev 0x00: apic 6 int 19 (irq 9) azalia0: no supported codecs azalia0: initialization failure, detaching ppb1 at pci0 dev 9 function 0 "AMD RS780 PCIE" rev 0x00: apic 6 int 17 (irq 10) pci2 at ppb1 bus 2 pciide0 at pci2 dev 0 function 0 vendor "VIA", unknown product 0x0415 rev 0x00: DMA (unsupported), channel 0 wired to native-PCI, channel 1 wired to native-PCI pciide0: using apic 6 int 17 (irq 10) for native-PCI interrupt atapiscsi0 at pciide0 channel 0 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <IDE, DVD-ROM 16X, 3.10> ATAPI 5/cdrom removable pciide0: channel 1 ignored (not responding; disabled or no drives?) ppb2 at pci0 dev 10 function 0 "AMD RS780 PCIE" rev 0x00: apic 6 int 18 (irq 11) pci3 at ppb2 bus 3 re0 at pci3 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E (0x2c00), apic 6 int 18 (irq 11), address e0:cb:4e:cf:4a:00 rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 4 ahci0 at pci0 dev 17 function 0 "ATI SBx00 SATA" rev 0x40: apic 6 int 19 (irq 9), AHCI 1.2 scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 0 lun 0: <ATA, WDC WD1001FALS-4, 05.0> SCSI3 0/direct fixed sd0: 953869MB, 512 bytes/sec, 1953525168 sec total sd1 at scsibus1 targ 1 lun 0: <ATA, SAMSUNG HD103SJ, 1AJ1> SCSI3 0/direct fixed sd1: 953869MB, 512 bytes/sec, 1953525168 sec total ohci0 at pci0 dev 18 function 0 "ATI SB700 USB" rev 0x00: apic 6 int 18 (irq 11), version 1.0, legacy support ehci0 at pci0 dev 18 function 2 "ATI SB700 USB2" rev 0x00: apic 6 int 17 (irq 10) usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 ohci1 at pci0 dev 19 function 0 "ATI SB700 USB" rev 0x00: apic 6 int 18 (irq 11), version 1.0, legacy support ehci1 at pci0 dev 19 function 2 "ATI SB700 USB2" rev 0x00: apic 6 int 17 (irq 10) usb1 at ehci1: USB revision 2.0 uhub1 at usb1 "ATI EHCI root hub" rev 2.00/1.00 addr 1 piixpm0 at pci0 dev 20 function 0 "ATI SBx00 SMBus" rev 0x41: SMBus disabled azalia1 at pci0 dev 20 function 2 "ATI SBx00 HD Audio" rev 0x40: apic 6 int 16 (irq 5) azalia1: codecs: Realtek/0x0892 audio0 at azalia1 pcib0 at pci0 dev 20 function 3 "ATI SB700 ISA" rev 0x40 ppb3 at pci0 dev 20 function 4 "ATI SB600 PCI" rev 0x40 pci4 at ppb3 bus 4 mem address conflict 0xfeaffc00/0x100 re1 at pci4 dev 5 function 0 "Realtek 8169" rev 0x10re1: reset never completed! re1: unknown bus speed, assume 33MHz : unknown ASIC (0x7c80), apic 6 int 20 (irq 3), address ff:ff:ff:ff:ff:ff re1: no PHY found! re1: reset never completed! ohci2 at pci0 dev 20 function 5 "ATI SB700 USB" rev 0x00: apic 6 int 18 (irq 11), version 1.0, legacy support ohci3 at pci0 dev 22 function 0 "ATI SB700 USB" rev 0x00: apic 6 int 18 (irq 11), version 1.0, legacy support ehci2 at pci0 dev 22 function 2 "ATI SB700 USB2" rev 0x00: apic 6 int 17 (irq 10) usb2 at ehci2: USB revision 2.0 uhub2 at usb2 "ATI EHCI root hub" rev 2.00/1.00 addr 1 pchb1 at pci0 dev 24 function 0 "AMD AMD64 10h HyperTransport" rev 0x00 pchb2 at pci0 dev 24 function 1 "AMD AMD64 10h Address Map" rev 0x00 pchb3 at pci0 dev 24 function 2 "AMD AMD64 10h DRAM Cfg" rev 0x00 km0 at pci0 dev 24 function 3 "AMD AMD64 10h Misc Cfg" rev 0x00 pchb4 at pci0 dev 24 function 4 "AMD AMD64 10h Link Cfg" rev 0x00 usb3 at ohci0: USB revision 1.0 uhub3 at usb3 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb4 at ohci1: USB revision 1.0 uhub4 at usb4 "ATI OHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 usb5 at ohci2: USB revision 1.0 uhub5 at usb5 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb6 at ohci3: USB revision 1.0 uhub6 at usb6 "ATI OHCI root hub" rev 1.00/1.00 addr 1 mtrr: Pentium Pro MTRR support uhidev0 at uhub3 port 1 configuration 1 interface 0 "Sun Microsystems Type 6 Keyboard" rev 1.00/1.02 addr 2 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes, country code 33 wskbd1 at ukbd0 mux 1 wskbd1: connecting to wsdisplay0 uhidev1 at uhub3 port 2 configuration 1 interface 0 "Dell Dell USB Mouse" rev 2.00/1.10 addr 3 uhidev1: iclass 3/1 ums0 at uhidev1: 3 buttons, Z dir wsmouse0 at ums0 mux 0 softraid0 at root root on sd0a swap on sd0b dump on sd0b