Unsupported Graphic Card in 11.04 & 11.04b1, OK with others

In case of, more details

sh-4.1# lspci -v
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 746 Host (rev 10)
 Subsystem: Elitegroup Computer Systems Device 1808
 Flags: bus master, medium devsel, latency 0
 Memory at d0000000 (32-bit, non-prefetchable) [size=128M]
 Capabilities: [c0] AGP version 3.0
 Kernel driver in use: agpgart-sis
 Kernel modules: sis-agp

00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SG86C202 (prog-if 00 [Normal decode])
 Flags: bus master, fast devsel, latency 64
 Bus: primary=00, secondary=01, subordinate=02, sec-latency=64
 I/O behind bridge: 0000b000-0000bfff
 Memory behind bridge: cfd00000-cfefffff
 Prefetchable memory behind bridge: afa00000-cfbfffff
 Kernel modules: shpchp

00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS963 [MuTIOL Media IO] (rev 25)
 Flags: bus master, medium devsel, latency 0

00:02.1 SMBus: Silicon Integrated Systems [SiS] SiS961/2 SMBus Controller
 Flags: medium devsel
 I/O ports at 0c00 [size=32]
 Kernel modules: i2c-sis96x

00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (prog-if 80 [Master])
 Subsystem: Elitegroup Computer Systems Device 1808
 Flags: bus master, medium devsel, latency 128
 [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [disabled] [size=8]
 [virtual] Memory at 000003f0 (type 3, non-prefetchable) [disabled] [size=1]
 [virtual] Memory at 00000170 (32-bit, non-prefetchable) [disabled] [size=8]
 [virtual] Memory at 00000370 (type 3, non-prefetchable) [disabled] [size=1]
 I/O ports at ff00 [size=16]
 Kernel driver in use: pata_sis

00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] C-Media AC'97 Sound Controller (rev a0)
 Subsystem: Elitegroup Computer Systems Device 1b25
 Flags: bus master, medium devsel, latency 64, IRQ 18
 I/O ports at dc00 [size=256]
 I/O ports at d800 [size=128]
 Capabilities: [48] Power Management version 2
 Kernel driver in use: Intel ICH
 Kernel modules: snd-intel8x0

00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10 [OHCI])
 Subsystem: Elitegroup Computer Systems Device 1808
 Flags: bus master, medium devsel, latency 64, IRQ 20
 Memory at cfffd000 (32-bit, non-prefetchable) [size=4K]
 Kernel driver in use: ohci_hcd
 Kernel modules: ohci-hcd

00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10 [OHCI])
 Subsystem: Elitegroup Computer Systems Device 1808
 Flags: bus master, medium devsel, latency 64, IRQ 21
 Memory at cffff000 (32-bit, non-prefetchable) [size=4K]
 Kernel driver in use: ohci_hcd
 Kernel modules: ohci-hcd

00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller (prog-if 20 [EHCI])
 Subsystem: Elitegroup Computer Systems Device 1808
 Flags: bus master, medium devsel, latency 64, IRQ 23
 Memory at cfffe000 (32-bit, non-prefetchable) [size=4K]
 Capabilities: [50] Power Management version 2
 Kernel driver in use: ehci_hcd
 Kernel modules: ehci-hcd

00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 91)
 Subsystem: Elitegroup Computer Systems Device 1808
 Flags: bus master, medium devsel, latency 64, IRQ 19
 I/O ports at d400 [size=256]
 Memory at cfffb000 (32-bit, non-prefetchable) [size=4K]
 Expansion ROM at cffa0000 [disabled] [size=128K]
 Capabilities: [40] Power Management version 2
 Kernel driver in use: sis900
 Kernel modules: sis900

01:00.0 VGA compatible controller: XGI Technology Inc. (eXtreme Graphics Innovation) Volari V3XT/V5/V8 (rev 02) (prog-if 00 [VGA controller])
 Subsystem: XGI Technology Inc. (eXtreme Graphics Innovation) Volari V3XT/V5/V8
 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 11
 BIST result: 00
 Memory at b0000000 (32-bit, prefetchable) [size=256M]
 Memory at cfec0000 (32-bit, non-prefetchable) [size=256K]
 I/O ports at bc00 [size=128]
 Expansion ROM at cfeb0000 [disabled] [size=64K]
 Capabilities: [40] Power Management version 2
 Capabilities: [50] AGP version 3.0

sh-4.1#

https://answers.launchpad.net/ubuntu/+source/xserver-xorg-video-sis

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