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I'm setting up a laptop and I'm encountering an intermittant problem with=20
video. Sometimes, but not always, the screen image is completely screwed up=
=20
(I don't know how else to describe it). When it happens, it occurs on=20
starting the X server or after terminating the X server. Typing Fn-F7 twice=
,=20
to turn the monitor off and on, clears the problem. This occurs only in=20
NetBSD - not Windows XP.

The BIOS setting are default. The kernel configuration file, dmesg follows =
at=20
end of mail, is essentially GENERIC_LAPTOP with unused devices commented ou=
t.=20
APM is used rather than ACPI.

The only uncommented lines in the Device Section of XF86Config are:
	Identifier  "Card0"
	Driver      "ati"
	VendorName  "ATI Technologies Inc"
	BoardName   "Radeon Mobility M7 LW [Radeon Mobility 7500]"
	BusID       "PCI:1:0:0"
The Screen section:

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
     	DefaultColorDepth 24
	SubSection "Display"
		Depth     1
		Modes	"Native panel mode"
	EndSubSection
	SubSection "Display"
		Depth     4
		Modes	"Native panel mode"
	EndSubSection
	SubSection "Display"
		Depth     8
		Modes	"Native panel mode"
	EndSubSection
	SubSection "Display"
		Depth     15
		Modes	"Native panel mode"
	EndSubSection
	SubSection "Display"
		Depth     16
		Modes	"Native panel mode"
	EndSubSection
	SubSection "Display"
		Depth     24
		Modes	"Native panel mode"
	EndSubSection
EndSection

Suggestions?

dmesg:

NetBSD 1.6ZI (T41) #0: Fri Jan 30 18:22:08 EST 2004
	root@laptop.mobile.descdesc.com:/usr/obj/usr/src/sys/arch/i386/compile/T41
total memory =3D 510 MB
avail memory =3D 495 MB
BIOS32 rev. 0 found at 0xfd750
PCI BIOS rev. 2.1 found at 0xfd8d6
PCI IRQ Routing Table rev. 1.0 found at 0xfdea0, size 272 bytes (15 entries)
PCI Interrupt Router at 000:31:0 (Intel 82371FB PCI-to-ISA Bridge (PIIX))
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x00005800
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x00005808
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x00005810
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x0000580c
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x20000000
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: Intel Pentium M (Banias) (686-class), 1395.55 MHz, id 0x695
cpu0: features a7e9f9bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,SEP,MTRR>
cpu0: features a7e9f9bf<PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX>
cpu0: features a7e9f9bf<FXSR,SSE,SSE2,TM,SBF>
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82855PM MCH Host Controller (rev. 0x03)
agp0 at pchb0: aperture at 0xd0000000, size 0x10000000
ppb0 at pci0 dev 1 function 0: Intel 82855PM Host-to-AGP Bridge (rev. 0x03)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga0 at pci1 dev 0 function 0: ATI Technologies Radeon Mobility M7 LW (AGP)=
=20
(rev. 0x00)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
uhci0 at pci0 dev 29 function 0: Intel 82801DB/DBM USB UHCI Controller #1=20
(rev. 0x01)
uhci0: interrupting at irq 11
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1: Intel 82801DB/DBM USB UHCI Controller #2=20
(rev. 0x01)
uhci1: interrupting at irq 11
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2: Intel 82801DB/DBM USB UHCI Controller #3=20
(rev. 0x01)
uhci2: interrupting at irq 11
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
ehci0 at pci0 dev 29 function 7: Intel 82801DB/DBM USB EHCI Controller (rev=
=2E=20
0x01)
ehci0: interrupting at irq 11
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2
usb3 at ehci0: USB revision 2.0
uhub3 at usb3
uhub3: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub3: 6 ports with 6 removable, self powered
ppb1 at pci0 dev 30 function 0: Intel 82801BAM Hub-to-PCI Bridge (rev. 0x81)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled
cbb0 at pci2 dev 0 function 0: Texas Instruments PCI4520 PCI-CardBus Bridge=
 w/=20
OHCI IEEE 1394 Controller (rev. 0x01)
cbb1 at pci2 dev 0 function 1: Texas Instruments PCI4520 PCI-CardBus Bridge=
 w/=20
OHCI IEEE 1394 Controller (rev. 0x01)
wm0 at pci2 dev 1 function 0: Intel i82540EP 1000BASE-T Ethernet, rev. 3
wm0: interrupting at irq 11
wm0: 32-bit 33MHz PCI bus
wm0: 64 word (6 address bits) MicroWire EEPROM
wm0: Ethernet address 00:0d:60:5f:38:92
makphy0 at wm0 phy 1: Marvell 88E1011 Gigabit PHY, rev. 4
makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT,=20
1000baseT-FDX, auto
Intel PRO/Wireless LAN 2100 3B Mini PCI Adapter (miscellaneous network,=20
revision 0x04) at pci2 dev 2 function 0 not configured
cbb0: interrupting at irq 11
cardslot0 at cbb0 slot 0 flags 0
cardbus0 at cardslot0: bus 3 device 0
pcmcia0 at cardslot0
cbb1: interrupting at irq 11
cardslot1 at cbb1 slot 1 flags 0
cardbus1 at cardslot1: bus 4 device 0
pcmcia1 at cardslot1
pcib0 at pci0 dev 31 function 0
pcib0: Intel 82801DB ISA Bridge (rev. 0x01)
piixide0 at pci0 dev 31 function 1
piixide0: Intel 82801DBM IDE Controller (ICH4-M) (rev. 0x01)
piixide0: bus-master DMA support present
piixide0: primary channel wired to compatibility mode
piixide0: primary channel interrupting at irq 14
atabus0 at piixide0 channel 0
piixide0: secondary channel wired to compatibility mode
piixide0: secondary channel interrupting at irq 15
atabus1 at piixide0 channel 1
Intel 82801DB/DBM SMBus Controller (SMBus serial bus, revision 0x01) at pci=
0=20
dev 31 function 3 not configured
auich0 at pci0 dev 31 function 5: i82801DB/DBM (ICH4/ICH4M) AC-97 Audio
auich0: interrupting at irq 11
auich0: ac97: Analog Devices AD1981B codec; headphone, 20 bit DAC, no 3D=20
stereo
auich0: ac97: ext id 601<AC97_22,AMAP,VRA>
Intel 82801DB/DBM AC97 Modem Controller (modem communications, revision 0x0=
1)=20
at pci0 dev 31 function 6 not configured
isa0 at pcib0
lpt2 at isa0 port 0x3bc-0x3bf irq : polled
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
isapnp0: no ISA Plug 'n Play devices found
apm0 at mainbus0: Power Management spec V1.2
auich0: measured ac97 link rate at 48002 Hz, will use 48000 Hz
audio0 at auich0: full duplex, mmap, independent
Kernelized RAIDframe activated
uhidev0 at uhub1 port 2 configuration 1 interface 0
uhidev0: KYE Genius USB Wheel Mouse, rev 1.00/0.00, addr 2, iclass 3/1
ums0 at uhidev0: 3 buttons and Z dir.
wsmouse1 at ums0 mux 0
wd0 at atabus0 drive 0: <HTS548040M9AT00>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 34797 MB, 70699 cyl, 16 head, 63 sec, 512 bytes/sect x 71265266 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(piixide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DM=
A=20
data transfers)
atapibus0 at atabus1: 2 targets
cd0 at atapibus0 drive 0: <TOSHIBA DVD-ROM SD-R9012, Z3GH406628, 1121> cdro=
m=20
removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
cd0(piixide0:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA=
=20
data transfers)
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)

=2D --=20

John R. Shannon
john@johnrshannon.com
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