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Re: [Xen-devel] Dear Ren Yongjie and Xen Developers



On 01/08/2013 22:39, Singapore Citizen Mr. Teo En Ming (Zhang Enming) wrote:
On 01/08/2013 21:24, Ren, Yongjie wrote:
-----Original Message-----
From: Singapore Citizen Mr. Teo En Ming (Zhang Enming)
[mailto:singapore.mr.teo.en.ming@xxxxxxxxx]
Sent: Thursday, August 01, 2013 7:03 PM
To: Ren, Yongjie
Cc: xen-users@xxxxxxxxxxxxx; xen-devel@xxxxxxxxxxxxx; Teo En Ming (Zhang
Enming)
Subject: Re: Dear Ren Yongjie

On 01/08/2013 15:28, Ren, Yongjie wrote:
-----Original Message-----
From: Singapore Citizen Mr. Teo En Ming (Zhang Enming)
[mailto:singapore.mr.teo.en.ming@xxxxxxxxx]
Sent: Thursday, August 01, 2013 5:25 AM
To: Ren, Yongjie; xen-users@xxxxxxxxxxxxx; xen-devel@xxxxxxxxxxxxx; Teo
En
Ming (Zhang Enming)
Subject: Dear Ren Yongjie

Hi Yongjie,

I have just compiled and installed Xen 4.3-unstable changeset 26666
and
Linux kernel 3.8.1, according to your specifications. However, I still
cannot get success with Intel HD Graphics 4600 IGD VGA passthrough.

Although in Device Manager in Windows 7 HVM domU, it says "This
device
is working properly" for Intel HD Graphics 4600, I can only get 16
colors. Please refer to the following screenshots.

http://i.imgur.com/zaEGys4.jpg

http://i.imgur.com/KRZzxNZ.jpg

http://i.imgur.com/aVyuh4W.jpg

I have attached the relevant configuration files in this email. Please
check to see if there are any mistakes.

Output of sudo xl dmesg: http://pastebin.com/knN7Hdg6

Output of dmesg: http://pastebin.com/ixPuUnni

Output of sudo xl info: http://pastebin.com/JRuqi3ay

Output of sudo lspci -vvv: http://pastebin.com/YnL0zSBW

Please advise. I really hope to be able to make Intel HD Graphics 4600
IGD VGA passthrough work successfully.

Hi Enming,
I can't reproduce your issue even if I use your Dom0 and guest config.
So, can you can try the following two:
1. use upstream Xen/Dom0 to try since that also works for me.
Dear Yongjie,

What do you mean by upstream Xen/Dom0? I don't understand.

I mean using latest Xen and Dom0 is also fine for VGA passthru.
No need to use specific changeset of Xen.

2. try other HSW CPU (e.g. Core i5-4670 which works for me)
I am sorry but it is out of budget for me. I can't buy another cpu to
test vga passthrough.
Best Regards,
       Yongjie (Jay)

By the way, what distro and version are you using for your dom0? Is it
Ubuntu, Debian, Mint or Fedora?

I'm using RHEL6.4. I think it doesn't matter.

Best Regards,
      Yongjie (Jay)


Dear Yongjie and Xen developers,

I have compiled and installed the latest Xen 4.4-unstable changeset 27305 and Linux kernel 3.10.3.

Although I did not get error code 43 for Intel HD Graphics 4600 IGD in device manager, I am still getting 16 colors only for the monitor!!!

How can I solve this problem?


Hi Yongjie,

I have installed Fedora 19 x86_64 as a dom0 and compiled and installed Xen 4.4-unstable changeset 27305 and Linux kernel 3.10.5. Previously I was using Ubuntu 12.04.2 LTS as dom0.

Although I did not get error code 43 for Intel HD Graphics 4600 in device manager, I am still getting only 16 colors on the display. I really do not know where the problem lies. Device manager says "This device is working properly.", yet I am still getting only 16 colors on the display.

Could you share with me your /etc/grub.d/40_custom GRUB2 contents?

Thank you very much.

--
Yours sincerely,

Singapore Citizen Mr. Teo En Ming (Zhang Enming)


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