[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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https://bugzilla.kernel.org/show_bug.cgi?id=52121


Alan <alan@lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alan@lxorguk.ukuu.org.uk
          Component|Video(Other)                |Video(DRI - non Intel)
         AssignedTo|drivers_video-other@kernel- |drivers_video-dri@kernel-bu
                   |bugs.osdl.org               |gs.osdl.org




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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #3 from Fernando Chaves <fernando@supergg.com.br>  2013-01-02 15:02:44 ---
UPDATE: 
Tested Xen 4.2.1 with Ubuntu 12.10 32-bit kernel 3.7.1 and I got the following
results:

- Xorg with Unity works with poor performance with Xen hypervisor loaded.
- Xorg with Unity is very nice without Xen hypervisor loaded.

- Text-based console performance is bad (as in Centos). Screen refresh is very
slow, text scrolling also slow.
- Text-based console performance is normal without Xen.

Exactly the same issues as in CentOS.

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |konrad.wilk@oracle.com




--- Comment #4 from Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>  2013-01-02 17:14:58 ---
Is the CONFIG_INTEL_IOMMU set in your kernel? Can you also attach the 'xl
dmesg' and 'dmesg' output please?

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #5 from Fernando Chaves <fernando@supergg.com.br>  2013-01-02 17:31:09 ---
Created an attachment (id=90161)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=90161)
My current kernel .config

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #6 from Fernando Chaves <fernando@supergg.com.br>  2013-01-02 17:31:36 ---
Created an attachment (id=90171)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=90171)
content of "xl dmesg"

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #7 from Fernando Chaves <fernando@supergg.com.br>  2013-01-02 17:31:59 ---
Created an attachment (id=90181)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=90181)
content from "dmesg"

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #8 from Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>  2013-01-02 18:10:37 ---
There looks to be something odd with the base value. Can you also run baremetal
and collect the 'dmesg' and the 'xorg.log' please?

Thank you.

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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Fernando Chaves <fernando@supergg.com.br> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #90171|content of "xl dmesg"       |content of "xl dmesg" from
        description|                            |Ubuntu 12.10




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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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Fernando Chaves <fernando@supergg.com.br> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #90181|content from "dmesg"        |content from "dmesg" from
        description|                            |Ubuntu 12.10




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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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Fernando Chaves <fernando@supergg.com.br> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #90161|My current kernel .config   |My current kernel .config
        description|                            |from Ubuntu 12.10




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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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Fernando Chaves <fernando@supergg.com.br> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #89931|lspci_and_xorg-fixed.log    |
           filename|                            |
  Attachment #89931|0                           |1
        is obsolete|                            |




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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #9 from Fernando Chaves <fernando@supergg.com.br>  2013-01-02 23:31:28 ---
Created an attachment (id=90201)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=90201)
List of loaded modules in Ubuntu - without Xen

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #10 from Fernando Chaves <fernando@supergg.com.br>  2013-01-02 23:33:23 ---
Created an attachment (id=90211)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=90211)
dmesg output in Ubuntu (before typing "startx") - Without Xen

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #11 from Fernando Chaves <fernando@supergg.com.br>  2013-01-02 23:35:40 ---
Created an attachment (id=90221)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=90221)
dmesg output in Ubuntu (after typing "startx"), with tons of error messages -
Without Xen

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #12 from Fernando Chaves <fernando@supergg.com.br>  2013-01-02 23:36:38 ---
Created an attachment (id=90231)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=90231)
Xorg.0.log from Ubuntu - Without Xen

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[Bug 52121] mgag200 driver does not work properly with Xen in new Intel Server Board

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--- Comment #13 from Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>  2013-01-03 18:04:34 ---
So is it safe to safe that it does not work without Xen? Or do you see stuff on
the screen in baremetal mode?

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--- Comment #14 from Fernando Chaves <fernando@supergg.com.br>  2013-01-03 22:13:05 ---
I have recorded this video:
http://www.youtube.com/watch?v=T0qHBxla5f8

Note the frame rate of the movie after reboot, with xen loaded.

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--- Comment #15 from Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>  2013-01-04 16:00:10 ---
Let me ask again: Does it work properly under baremetal?

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--- Comment #16 from Fernando Chaves <fernando@supergg.com.br>  2013-01-04 16:35:55 ---
I'm sorry Konrad, but I don't know exactly what you mean when you say "run on
bare metal".

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--- Comment #17 from Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>  2013-01-04 19:26:35 ---
(In reply to comment #16)
> I'm sorry Konrad, but I don't know exactly what you mean when you say "run on
> bare metal".

without Xen.

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--- Comment #18 from Fernando Chaves <fernando@supergg.com.br>  2013-01-04 19:34:06 ---
Yes, everything works at 100% without Xen, both CLI and Xorg, even in CentOS.

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--- Comment #19 from Fernando Chaves <fernando@supergg.com.br>  2013-01-23 04:15:42 ---
I would like to inform that this motherboard uses UEFI.

And, obviously, I'm using Legacy Boot.

This requires some [video] emulation, right?

There is any known issue with Xen about motherboards that uses UEFI? If I
install an UEFI-aware bootloader, like rEFInd or grub-efi, can I boot the
hypervisor?

Big observations made since last message sent:
- BIOS-aware bootloaders (GRUB Legacy, GRUB 2, ISOLINUX, PXELINUX) have a
slower keyboard response AND very slow screen refresh. keystrokes under those
bootloaders have a ~500ms response delay. Also screen refresh is [much] slower,
when entering submenus.
- All behaviors previously mentioned disappears when adding an video card.
Tested with a 10 year-old ATI Rage XL 16MB PCI.

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--- Comment #20 from Fernando Chaves <fernando@supergg.com.br>  2013-01-30 02:08:38 ---
Well...

Same thing with EFI boot. Video still slow.

I think I should use a VGA card for a while (or forever).

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--- Comment #21 from Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>  2013-03-05 20:16:12 ---
Well not forever. Daniel (lets see if I can add him on this bug) is looking at
getting the EFI parts working.

The VGA part is on the list but we haven't yet touched it.

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Daniel Kiper <dkiper@net-space.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dkiper@net-space.pl




--- Comment #22 from Daniel Kiper <dkiper@net-space.pl>  2013-03-06 09:15:46 ---
Now I have added myself to the bug.
Please follow LKML and Xen-devel for more details.

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