Created attachment 121841
Full Xorg log

I am experiencing a Xorg error while using the latest git version of the driver with the following device (with VendorId/ProductId present in src/via_id.c):

00:01.0 VGA compatible controller [0300]: VIA Technologies, Inc. VX900 Graphics [Chrome9 HD] [1106:7122] (prog-if 00 [VGA controller])
        Subsystem: Gigabyte Technology Co., Ltd Device [1458:d000]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 64
        Interrupt: pin A routed to IRQ 10
        Region 0: Memory at fb000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at fc000000 (32-bit, non-prefetchable) [size=16M]
        Region 2: Memory at f0000000 (32-bit, prefetchable) [size=128M]
        Expansion ROM at febf0000 [disabled] [size=64K]
        Capabilities: [60] Power Management version 2
                Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit+
                Address: 0000000000000000  Data: 0000


And here's what I got in Xorg.log:
[   549.070] (==) Matched openchrome as autoconfigured driver 0
[   549.070] (II) LoadModule: "openchrome"
[   549.071] (II) Loading /usr/lib/xorg/modules/drivers/openchrome_drv.so
[   549.071] (II) Module openchrome: vendor="http://openchrome.org/"
[   549.086] (II) OPENCHROME: Driver for VIA Chrome chipsets: CLE266, KM400/KN400,
[   549.088] (!!) For support, please refer to http://www.openchrome.org/.
[   549.089] (EE) open /dev/dri/card0: No such file or directory
[   549.090] (EE) open /dev/fb0: No such file or directory
[   549.090] (II) CHROME(0): VIAPreInit
[   549.090] (II) CHROME(0): VIAGetRec
[   549.090] (--) CHROME(0): Chipset: VX900
[   549.091] (--) CHROME(0): Chipset revision: 0
[   549.251] (EE) CHROME(0): [drm] Failed to open DRM device for pci:0000:00:01.0: No such file or directory
[   549.253] (--) CHROME(0): Probed amount of VideoRAM = 131072 kB
[   549.253] (II) CHROME(0): VIAMapMMIO
[   549.253] (--) CHROME(0): mapping MMIO @ 0xfc000000 with size 0xd000
[   549.253] (--) CHROME(0): mapping BitBlt MMIO @ 0xfc200000 with size 0x200000
[   549.253] (II) CHROME(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0
[   549.253] (II) CHROME(0): VIAMapFB
[   549.253] (--) CHROME(0): mapping framebuffer @ 0xf0000000 with size 0x8000000
[   549.254] (--) CHROME(0): Frame buffer start: 0xaea5a000, free start: 0x0 end: 0x8000000
[   549.254] (==) CHROME(0): Depth 24, (--) framebuffer bpp 32
[   549.255] (==) CHROME(0): RGB weight 888
[   549.255] (==) CHROME(0): Default visual is TrueColor
[   549.255] (II) CHROME(0): VIASetupDefaultOptions - Setting up default chipset options.
[   549.255] (==) CHROME(0): Shadow framebuffer is disabled.
[   549.255] (==) CHROME(0): Hardware acceleration is enabled.
[   549.255] (==) CHROME(0): Using EXA acceleration architecture.
[   549.255] (==) CHROME(0): EXA composite acceleration enabled.
[   549.255] (==) CHROME(0): EXA scratch area size is 4096 kB.
[   549.255] (==) CHROME(0): Using hardware two-color cursors and software full-color cursors.
[   549.255] (==) CHROME(0): GPU virtual command queue will be enabled.
[   549.255] (==) CHROME(0): DRI IRQ will be enabled if DRI is enabled.
[   549.255] (==) CHROME(0): AGP DMA will be disabled if DRI is enabled.
[   549.255] (==) CHROME(0): PCI DMA will not be used for XV image transfer if DRI is enabled.
[   549.255] (==) CHROME(0): Will not enable VBE modes.
[   549.255] (==) CHROME(0): VBE VGA register save & restore will not be used
[   549.255] (==) CHROME(0): Xv Bandwidth check is enabled.
[   549.255] (==) CHROME(0): Will not impose a limit on video RAM reserved for DRI.
[   549.255] (==) CHROME(0): Will try to allocate 32768 kB of AGP memory.
[   549.255] (==) CHROME(0): TV dotCrawl is disabled.
[   549.255] (==) CHROME(0): TV deflicker is set to 0.
[   549.255] (==) CHROME(0): No default TV type is set.
[   549.255] (==) CHROME(0): No default TV output signal type is set.
[   549.255] (==) CHROME(0): No default TV output port is set.
[   549.260] (==) CHROME(0): Will not print VGA registers.
[   549.260] (==) CHROME(0): Will not scan I2C buses.
[   549.260] (II) CHROME(0): ...Finished parsing config file options.
[   549.260] (EE) CHROME(0): Unknown Card-Ids (7122|1458|D000), Chipset: VX900; please report to <email address hidden>
[   549.260] (EE) 
[   549.260] (EE) Backtrace:
[   549.260] (EE) 0: /usr/bin/X (xorg_backtrace+0x4f) [0xb77551bf]
[   549.261] (EE) 1: /usr/bin/X (0xb75ac000+0x1acfa4) [0xb7758fa4]
[   549.261] (EE) 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb7589410]
[   549.261] (EE) 3: /usr/lib/xorg/modules/drivers/openchrome_drv.so (0xb6c84000+0x13ccc) [0xb6c97ccc]
[   549.261] (EE) 4: /usr/bin/X (InitOutput+0xb43) [0xb762f623]
[   549.261] (EE) 5: /usr/bin/X (0xb75ac000+0x410c7) [0xb75ed0c7]
[   549.262] (EE) 6: /usr/bin/X (0xb75ac000+0x2ae1e) [0xb75d6e1e]
[   549.262] (EE) 7: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0xb7197a83]
[   549.262] (EE) 8: /usr/bin/X (0xb75ac000+0x2ae54) [0xb75d6e54]
[   549.262] (EE) 
[   549.262] (EE) Segmentation fault at address 0x0
[   549.262] (EE) 
[   549.263] (EE) Caught signal 11 (Segmentation fault). Server aborting
[   549.263] (EE) 
[   549.263] (EE) 
[   549.263] (EE) Please also check the log file at "/var/log/Xorg.1.log" for additional information.
[   549.263] (EE) 
[   549.269] (EE) Server terminated with error (1). Closing log file.

Thank you.