xen-devel.lists.xenproject.org archive mirror
 help / color / mirror / Atom feed
* Intel IGP VGA-passthrough to Ubuntu 11.04/openSUSE domU doesn't quite work
@ 2011-08-29 15:50 Martin Meier
  2011-08-29 19:36 ` Konrad Rzeszutek Wilk
  0 siblings, 1 reply; 3+ messages in thread
From: Martin Meier @ 2011-08-29 15:50 UTC (permalink / raw)
  To: intel-gfx, xen-devel

Hi,
when comparing the dmesgs from a Ubuntu 11.04+xorg-edgers-ppa running on real
hardware ver. running in a HVM-domU, I see this change in dmesg:

real:
[    2.306326] [drm:intel_wait_for_vblank], vblank wait timed out
[    2.307140] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x700
[    2.307143] [drm:gen6_fdi_link_train], FDI train 1 done.
[    2.307798] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x600
[    2.307801] [drm:gen6_fdi_link_train], FDI train 2 done.
[    2.307802] [drm:gen6_fdi_link_train], FDI train done.

domU:
[    3.658150] [drm:intel_wait_for_vblank], vblank wait timed out
[    3.658962] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x700
[    3.658966] [drm:gen6_fdi_link_train], FDI train 1 done.
[    3.659625] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    3.660129] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    3.660633] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    3.661137] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    3.661140] [drm:gen6_fdi_link_train] *ERROR* FDI train 2 fail!
[    3.661142] [drm:gen6_fdi_link_train], FDI train done.

The desktop looks OK on real hardware.
In a domU the display shows 'no signal' and turns it self off during
the boot process.
The domU stays up and does not crash, oops, seg-faults, etc.

I've tried
chvt 1 / 7
xset dpms force off / on
xrandr  --off / --auto
with no visible change.

Hardware:
DQ67SW (vt-d enabled)
i5 2400
Display connected via DVI-D / DVI-I+VGA adapter

Software:
domU kernel: 3.1.0-rc3 x86 32 bit
dom0 kernel: 3.0.3
(git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git) x86_64
xen 4.2-unstable (xen_changeset          : Thu Aug 25 12:03:14 2011
+0100 23791:227130622561)


A short test with openSUSE-NET-Build0136-x86_64.iso shows the same behaviour.

On the other hand, XP-SP3 with the GFX_XP32_6.14.10.5361_PV.exe works
quite well with the same configuration.

Thanks,
Martin

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2011-09-05 16:16 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-08-29 15:50 Intel IGP VGA-passthrough to Ubuntu 11.04/openSUSE domU doesn't quite work Martin Meier
2011-08-29 19:36 ` Konrad Rzeszutek Wilk
2011-09-05 16:16   ` [Xen-devel] " Martin Meier

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).