-- 
Yours sincerely,

Mr. Teo En Ming (Zhang Enming) 张恩鸣 Dip(Mechatronics) BEng(Hons)(Mechanical Engineering)
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My Open Letter (Plea for Medical Help/Assistance) to World Leaders:-
http://lists.mcs.anl.gov/pipermail/mpich-discuss/2010-August/007811.html
http://mythtv.org/pipermail/mythtv-users/2010-August/295952.html
http://archives.gentoo.org/gentoo-user/msg_f6a341d9623fda17880159b137c07335.xml
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On 09/11/2010 06:21 PM, Pasi Kärkkäinen wrote:

On Sat, Sep 11, 2010 at 01:57:26PM +0800, "Mr. Teo En Ming (Zhang Enming) ????????? of Singapore" wrote:
  

Dear Intel Engineers,

I am unable to get Intel integrated graphics (IGD) VGA passthrough to
work with Xen 4.0.1-rc6-pre, Xen 4.0.1-RELEASE, pv-ops dom0 kernel
2.6.32.19 and 2.6.32.21. The moment the command "xm create <Windows XP
HVM guest>" is executed, the screen immediately goes blank with the
label "NO SIGNAL". It may take anywhere from 3-10 minutes before Windows
XP Home HVM domU starts booting. The HVM guest will subsequently crash
with a BSOD.

I have posted configuration files, scripts, logs and kernel debug
messages in threads in the xen-devel mailing list in August 2010 and
September 2010.

http://lists.xensource.com/archives/html/xen-devel/2010-08/index.html

http://lists.xensource.com/archives/html/xen-devel/2010-09/index.html

Please assist.

    

A couple of questions:

- I assume the IGD is the primary graphics?
  

Yes, the IGD is the primary display adapter.

- Do you have other graphics adapters in the same machine?
  

Yes, I have NVIDIA GeForce 8400 GS PCI Express x16 graphics card in the same machine.

- Can you please paste "lspci -vvv" from dom0.
  

00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
    Subsystem: Intel Corporation Device 1003
    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: 0
    Interrupt: pin A routed to IRQ 26
    Region 0: Memory at d3400000 (64-bit, non-prefetchable) [size=4M]
    Region 2: Memory at b0000000 (64-bit, prefetchable) [size=256M]
    Region 4: I/O ports at e220 [size=8]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: <access denied>
    Kernel driver in use: i915
    Kernel modules: i915

01:00.0 VGA compatible controller: nVidia Corporation GeForce 8400 GS (rev a1) (prog-if 00 [VGA controller])
    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-
    Interrupt: pin A routed to IRQ 11
    Region 0: Memory at d2000000 (32-bit, non-prefetchable) [disabled] [size=16M]
    Region 1: Memory at c0000000 (64-bit, prefetchable) [disabled] [size=256M]
    Region 3: Memory at d0000000 (64-bit, non-prefetchable) [disabled] [size=32M]
    Region 5: I/O ports at d000 [disabled] [size=128]
    Expansion ROM at d3000000 [disabled] [size=128K]
    Capabilities: <access denied>
    Kernel modules: nvidia

- Also paste your grub.conf for the entry you're using for Xen.
  

title Fedora (2.6.32.21-xen-enming.teo)
    root (hd0,0)
    kernel /xen.gz dom0_mem=1024M
    module /vmlinuz-2.6.32.21-xen-enming.teo ro root=/dev/mapper/vg_fedora11_host-lv_root rhgb quiet selinux=0 nomodeset
    module /initrd-2.6.32.21-xen-enming.teo.img

-- Pasi


  

Thank you very much.