Hi,
I have a Matrox MGA G200eW video card (integrated) that I'd like to run
X on.
It's on a Supermicro H8SCM motherboard.
With a amd64 install of 7.9, I'm unable to startx or run Xenodm with it.
I'll attach dmesg and the Xorg log. Interestingly, the Xorg log was
different (and still didn't work) when remote serial access was enabled.
I'd appreciate any pointers on what I can try next. In the meanwhile,
I've been using a ATI HD5450 which has been working well, but draws more
power than I'd like for what I'm using it for.
Thank you!
dmesg:
OpenBSD 7.9 (GENERIC.MP) #8: Fri Aug 21 13:32:14 MDT 2026
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 34341453824 (32750MB)
avail mem = 33272688640 (31731MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.6 @ 0x9ac00 (30 entries)
bios0: vendor American Megatrends Inc. version "3.5b" date 03/18/2016
bios0: Supermicro H8SCM
acpi0 at bios0: ACPI 3.0
acpi0: sleep states S0 S1 S4 S5
acpi0: tables DSDT FACP APIC MCFG OEMB HPET SRAT SSDT EINJ BERT ERST HEST
acpi0: wakeup devices PC02(S4) PC03(S4) PC04(S4) PC05(S4) PC06(S4) PC07(S4)
PC09(S4) PC0A(S4) PC0B(S4) PC0C(S4) SBAZ(S4) P0PC(S4) UHC1(S4) UHC2(S4)
UHC3(S4) USB4(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD Opteron(tm) Processor 4162 EE, 1700.09 MHz, 10-08-01, patch 010000d9
cpu0: cpuid 1
edx=178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT>
ecx=802009<SSE3,MWAIT,CX16,POPCNT>
cpu0: cpuid 80000001
edx=efd3fbff<NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,3DNOW2,3DNOW>
ecx=837ff<LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,NODEID>
cpu0: cpuid 80000007 edx=1f9<HWPSTATE,ITSC>
cpu0: 64KB 64b/line 2-way D-cache, 64KB 64b/line 2-way I-cache
cpu0: 512KB 64b/line 16-way L2 cache
cpu0: smt 0, core 0, package 0, type P
cpu0: AMD erratum 721 detected and fixed
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 200MHz
cpu0: mwait min=64, max=64, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: AMD Opteron(tm) Processor 4162 EE, 1700.23 MHz, 10-08-01, patch 010000d9
cpu1: smt 0, core 1, package 0, type P
cpu2 at mainbus0: apid 2 (application processor)
cpu2: AMD Opteron(tm) Processor 4162 EE, 1700.32 MHz, 10-08-01, patch 010000d9
cpu2: smt 0, core 2, package 0, type P
cpu3 at mainbus0: apid 3 (application processor)
cpu3: AMD Opteron(tm) Processor 4162 EE, 1700.27 MHz, 10-08-01, patch 010000d9
cpu3: smt 0, core 3, package 0, type P
cpu4 at mainbus0: apid 4 (application processor)
cpu4: AMD Opteron(tm) Processor 4162 EE, 1700.47 MHz, 10-08-01, patch 010000d9
cpu4: smt 0, core 4, package 0, type P
cpu5 at mainbus0: apid 5 (application processor)
cpu5: AMD Opteron(tm) Processor 4162 EE, 1700.72 MHz, 10-08-01, patch 010000d9
cpu5: smt 0, core 5, package 0, type P
ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 21, 24 pins, remapped
ioapic1 at mainbus0: apid 1 pa 0xfec20000, version 21, 32 pins, remapped
acpimcfg0 at acpi0
acpimcfg0: addr 0xe0000000, bus 0-255
acpihpet0 at acpi0: 14318180 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PC02)
acpiprt2 at acpi0: bus -1 (PC03)
acpiprt3 at acpi0: bus -1 (PC04)
acpiprt4 at acpi0: bus 1 (PC09)
acpiprt5 at acpi0: bus 2 (PC0A)
acpiprt6 at acpi0: bus 3 (P0PC)
acpipci0 at acpi0 PCI0
acpicmos0 at acpi0
"PNP0303" at acpi0 not configured
com0 at acpi0 UAR1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
com1 at acpi0 UAR2 addr 0x2f8/0x8 irq 3: ns16550a, 16 byte fifo
acpibtn0 at acpi0: PWRB
acpicpu0 at acpi0: C1(@1 halt!), PSS
acpicpu1 at acpi0: C1(@1 halt!), PSS
acpicpu2 at acpi0: C1(@1 halt!), PSS
acpicpu3 at acpi0: C1(@1 halt!), PSS
acpicpu4 at acpi0: C1(@1 halt!), PSS
acpicpu5 at acpi0: C1(@1 halt!), PSS
ipmi at mainbus0 not configured
cpu0: 1700 MHz: speeds: 1700 1500 1300 1100 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "ATI SR5650 Host" rev 0x02
ppb0 at pci0 dev 9 function 0 "ATI SR5690 PCIE" rev 0x00: msi
pci1 at ppb0 bus 1
em0 at pci1 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address
00:25:90:15:ed:9c
ppb1 at pci0 dev 10 function 0 "ATI SR5690 PCIE" rev 0x00: msi
pci2 at ppb1 bus 2
em1 at pci2 dev 0 function 0 "Intel 82574L" rev 0x00: msi, address
00:25:90:15:ed:9d
ahci0 at pci0 dev 17 function 0 "ATI SBx00 SATA" rev 0x00: apic 0 int 22, AHCI
1.1
ahci0: port 0: 3.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, Samsung SSD 850, EXM0> naa.5002538840243a37
sd0: 488386MB, 512 bytes/sector, 1000215216 sectors, thin
ohci0 at pci0 dev 18 function 0 "ATI SB700 USB" rev 0x00: apic 0 int 16,
version 1.0, legacy support
ohci1 at pci0 dev 18 function 1 "ATI SB700 USB" rev 0x00: apic 0 int 16,
version 1.0, legacy support
ehci0 at pci0 dev 18 function 2 "ATI SB700 USB2" rev 0x00: apic 0 int 17
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "ATI EHCI root hub" rev 2.00/1.00
addr 1
ohci2 at pci0 dev 19 function 0 "ATI SB700 USB" rev 0x00: apic 0 int 18,
version 1.0, legacy support
ohci3 at pci0 dev 19 function 1 "ATI SB700 USB" rev 0x00: apic 0 int 18,
version 1.0, legacy support
ehci1 at pci0 dev 19 function 2 "ATI SB700 USB2" rev 0x00: apic 0 int 19
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "ATI EHCI root hub" rev 2.00/1.00
addr 1
piixpm0 at pci0 dev 20 function 0 "ATI SBx00 SMBus" rev 0x3d: SMI
iic0 at piixpm0
sdtemp0 at iic0 addr 0x1a: mcp98243
sdtemp1 at iic0 addr 0x1b: mcp98243
nvt0 at iic0 addr 0x2f: W83795G
spdmem0 at iic0 addr 0x52: 16GB DDR3 SDRAM registered ECC PC3-12800 with
thermal sensor
spdmem1 at iic0 addr 0x53: 16GB DDR3 SDRAM registered ECC PC3-12800 with
thermal sensor
pcib0 at pci0 dev 20 function 3 "ATI SB700 ISA" rev 0x00
ppb2 at pci0 dev 20 function 4 "ATI SB600 PCI" rev 0x00
pci3 at ppb2 bus 3
vga1 at pci3 dev 4 function 0 "Matrox MGA G200eW" rev 0x0a
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ohci4 at pci0 dev 20 function 5 "ATI SB700 USB" rev 0x00: apic 0 int 18,
version 1.0, legacy support
pchb1 at pci0 dev 24 function 0 "AMD 10h HyperTransport" rev 0x00
pchb2 at pci0 dev 24 function 1 "AMD 10h Address Map" rev 0x00
pchb3 at pci0 dev 24 function 2 "AMD 10h DRAM Cfg" rev 0x00
km0 at pci0 dev 24 function 3 "AMD 10h Misc Cfg" rev 0x00
pchb4 at pci0 dev 24 function 4 "AMD 10h Link Cfg" rev 0x00
usb2 at ohci0: USB revision 1.0
uhub2 at usb2 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00
addr 1
usb3 at ohci1: USB revision 1.0
uhub3 at usb3 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00
addr 1
usb4 at ohci2: USB revision 1.0
uhub4 at usb4 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00
addr 1
usb5 at ohci3: USB revision 1.0
uhub5 at usb5 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00
addr 1
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
wbsio0 at isa0 port 0x2e/2: W83627DHG-P rev 0x73
wbsio0 port 0xa10/2 not configured
usb6 at ohci4: USB revision 1.0
uhub6 at usb6 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00
addr 1
vmm0 at mainbus0: SVM/RVI
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006>
sd1: 976762MB, 512 bytes/sector, 2000408672 sectors
root on sd1a (1e5fbd3468c8baa7.a) swap on sd1b dump on sd1b
Xorg.0.log (when serial remote access was disabled)
[ 50.096] (WW) checkDevMem: failed to open /dev/mem and /dev/xf86
(Operation not permitted)
Check that you have set 'machdep.allowaperture=1'
in /etc/sysctl.conf and reboot your machine
refer to xf86(4) for details
[ 50.099] linear framebuffer access unavailable
[ 50.181] (--) Using wscons driver on /dev/ttyC4
[ 50.228]
X.Org X Server 1.21.1.21
X Protocol Version 11, Revision 0
[ 50.234] Current Operating System: OpenBSD laptop.my.domain 7.9
GENERIC.MP#8 amd64
[ 50.237]
[ 50.240] Current version of pixman: 0.46.4
[ 50.243] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 50.246] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 50.264] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Sep 8 19:51:08
2026
[ 50.281] (==) Using system config directory
"/usr/X11R6/share/X11/xorg.conf.d"
[ 50.293] (==) No Layout section. Using the first Screen section.
[ 50.297] (==) No screen section available. Using defaults.
[ 50.323] (**) |-->Screen "Default Screen Section" (0)
[ 50.326] (**) | |-->Monitor "<default monitor>"
[ 50.336] (==) No monitor specified for screen "Default Screen Section".
Using a default monitor configuration.
[ 50.339] (**) Allowing byte-swapped clients
[ 50.342] (==) Automatically adding devices
[ 50.345] (==) Automatically enabling devices
[ 50.348] (==) Not automatically adding GPU devices
[ 50.351] (==) Automatically binding GPU devices
[ 50.355] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 50.378] (==) FontPath set to:
/usr/X11R6/lib/X11/fonts/misc/,
/usr/X11R6/lib/X11/fonts/TTF/,
/usr/X11R6/lib/X11/fonts/OTF/,
/usr/X11R6/lib/X11/fonts/Type1/,
/usr/X11R6/lib/X11/fonts/100dpi/,
/usr/X11R6/lib/X11/fonts/75dpi/
[ 50.381] (==) ModulePath set to "/usr/X11R6/lib/modules"
[ 50.384] (II) The server relies on wscons to provide the list of input
devices.
If no devices become available, reconfigure wscons or disable
AutoAddDevices.
[ 50.388] (II) Loader magic: 0x47b1bec880
[ 50.392] (II) Module ABI versions:
[ 50.395] X.Org ANSI C Emulation: 0.4
[ 50.398] X.Org Video Driver: 25.2
[ 50.401] X.Org XInput driver : 24.4
[ 50.404] X.Org Server Extension : 10.0
[ 50.409] (--) PCI:*(3@0:4:0) 102b:0532:15d9:ba11 rev 10, Mem @
0xfc000000/16777216, 0xfdffc000/16384, 0xfe000000/8388608
[ 50.426] (II) LoadModule: "glx"
[ 50.444] (II) Loading /usr/X11R6/lib/modules/extensions/libglx.so
[ 50.784] (II) Module glx: vendor="X.Org Foundation"
[ 50.787] compiled for 1.21.1.21, module version = 1.0.0
[ 50.793] ABI class: X.Org Server Extension, version 10.0
[ 50.798] (==) Matched mga as autoconfigured driver 0
[ 50.803] (==) Matched vesa as autoconfigured driver 1
[ 50.806] (==) Assigned the driver to the xf86ConfigLayout
[ 50.809] (II) LoadModule: "mga"
[ 50.816] (II) Loading /usr/X11R6/lib/modules/drivers/mga_drv.so
[ 50.827] (II) Module mga: vendor="X.Org Foundation"
[ 50.830] compiled for 1.21.1.21, module version = 2.0.1
[ 50.836] Module class: X.Org Video Driver
[ 50.839] ABI class: X.Org Video Driver, version 25.2
[ 50.844] (II) LoadModule: "vesa"
[ 50.852] (II) Loading /usr/X11R6/lib/modules/drivers/vesa_drv.so
[ 50.859] (II) Module vesa: vendor="X.Org Foundation"
[ 50.862] compiled for 1.21.1.21, module version = 2.3.4
[ 50.869] Module class: X.Org Video Driver
[ 50.872] ABI class: X.Org Video Driver, version 25.2
[ 50.875] (II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg,
mga2164w,
mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI,
mgag200 SE A PCI, mgag200 SE B PCI, mgag200 EV Maxim,
mgag200 ER SH7757, mgag200 eW Nuvoton, mgag200 eW3 Nuvoton,
mgag200eH, mgag200eH3, mgag400, mgag550
[ 50.960] (II) VESA: driver for VESA chipsets: vesa
[ 50.968] (WW) Falling back to old probe method for vesa
[ 50.973] (II) Loading sub module "vgahw"
[ 50.976] (II) LoadModule: "vgahw"
[ 50.992] (II) Loading /usr/X11R6/lib/modules/libvgahw.so
[ 51.000] (II) Module vgahw: vendor="X.Org Foundation"
[ 51.003] compiled for 1.21.1.21, module version = 0.1.0
[ 51.010] ABI class: X.Org Video Driver, version 25.2
[ 51.013] (--) MGA(0): Chipset: "mgag200 eW Nuvoton"
[ 51.018] (II) MGA(0): HW cursor is not supported with video redirection
onG200 server chips.
If you don't intend to use video redirection enable with Option "HWCursor" "On"
[ 51.021] xf86TokenToOptinfo: table is NULL
[ 51.024] xf86TokenToOptinfo: table is NULL
[ 51.028] (==) MGA(0): Using SW cursor
[ 51.031] (--) MGA(0): Linear framebuffer at 0xFC000000
[ 51.034] (--) MGA(0): MMIO registers at 0xFDFFC000
[ 51.037] (--) MGA(0): Pseudo-DMA transfer window at 0xFE000000
[ 51.041] (EE) MGA(0): Unable to map Framebuffer FC000000 800000. Bad file
descriptor (9)
[ 51.044] (II) MGA(0): Creating default Display subsection in Screen section
"Default Screen Section" for depth/fbbpp 24/32
[ 51.047] (==) MGA(0): Depth 24, (--) framebuffer bpp 32
[ 51.052] (==) MGA(0): RGB weight 888
[ 51.055] (**) MGA(0): Enabling KVM
[ 51.059] (==) MGA(0): Using EXA acceleration
[ 51.062] (II) Loading sub module "exa"
[ 51.066] (II) LoadModule: "exa"
[ 51.078] (II) Loading /usr/X11R6/lib/modules/libexa.so
[ 51.086] (II) Module exa: vendor="X.Org Foundation"
[ 51.089] compiled for 1.21.1.21, module version = 2.6.0
[ 51.096] ABI class: X.Org Video Driver, version 25.2
[ 51.100] (WW) MGA(0): Could not retrieve video BIOS!
[ 51.103] (EE) MGA(0): Unable to detect video RAM.
[ 51.107] (II) UnloadModule: "mga"
[ 51.113] (II) UnloadSubModule: "exa"
[ 51.120] (II) Unloading exa
[ 51.126] (II) UnloadSubModule: "vgahw"
[ 51.133] (II) Unloading vgahw
[ 51.139] (EE) Screen(s) found, but none have a usable configuration.
[ 51.143] (EE)
Fatal server error:
[ 51.149] (EE) no screens found(EE)
[ 51.160] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 51.166] (EE) Please also check the log file at "/var/log/Xorg.0.log" for
additional information.
[ 51.173] (EE)
[ 51.183] (EE) Server terminated with error (1). Closing log file.
