Comment 6 for bug 300193

(note: these are from the stable 8.10-generic, ask for the -rt if necessary as it requires some time on my part)

lspci -v:
01:00.0 VGA compatible controller: VIA Technologies, Inc. VT8623 [Apollo CLE266] integrated CastleRock graphics (rev 03)
 Subsystem: VIA Technologies, Inc. VT8623 [Apollo CLE266] integrated CastleRock graphics
 Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 12
 Memory at d8000000 (32-bit, prefetchable) [size=64M]
 Memory at dc000000 (32-bit, non-prefetchable) [size=16M]
 [virtual] Expansion ROM at dd000000 [disabled] [size=64K]
 Capabilities: <access denied>
 Kernel driver in use: vt8623fb
 Kernel modules: vt8623fb

And the X driver is openchrome, reporting:
(--) CHROME(0): Chipset: CLE266
(--) CHROME(0): Chipset revision: 17
(--) CHROME(0): Probed amount of VideoRAM = 65536 kB
...
(WW) CHROME(0): Manufacturer plainly copied main PCI IDs to subsystem/card IDs.
(--) CHROME(0): Detected VIA VT3122 (CLE266)-EPIA M/MII/....

I also noted a new thing in the jaunty kernel output: The CPU should be supported:
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] NSC Geode by NSC
[ 0.000000] Cyrix CyrixInstead
[ 0.000000] Centaur CentaurHauls
[ 0.000000] Transmeta GenuineTMx86
[ 0.000000] Transmeta TransmetaCPU
[ 0.000000] UMC UMC UMC UMC

/proc/cpuinfo snippet:
vendor_id : CentaurHauls
cpu family : 6
model : 9
model name : VIA Nehemiah
stepping : 8
cpu MHz : 1199.778
cache size : 64 KB