On Wed, Oct 06, 2010 at 10:50:57AM -0700, sanjay kushwaha wrote:
> Hi,
> I have run into more problems now. This time with VT-d.
> When I enable VT-d on this laptop, graphics again stops working in dom0
> with pvops (linux 2.6.32.21). the screen starts showing garbage as soon as
> it switches into graphics mode.this happens when I boot the pvops kernel
> both as dom0 and native linux. However, when I try 2.6.33 based pvops
> kernel (stable-2.6.33.x) graphics seems to work fine with VT-d when
> running native but it doesnt work when running as Dom0.
>
> so now the problem is:
>
> with stable-2.6.32.x: graphics works in Dom0 without Vt-d but not with
> VT-d (neither native nor Dom0).
> with stable-2.6.33.x: graphics works with VT-d when running native but
> doesnt work when running as Dom0 (with or without VT-d).
>
stable-2.6.33.x is not maintained, and you shouldn't use it.
I think Konrad has a backport of the 2.6.34 drm/dri drivers
to stable-2.6.32.x somewhere.. that might help.
http://wiki.xensource.com/xenwiki/XenPVOPSDRM
-- Pasi
> I am experiencing this problem both with Lenovo T410, and Dell latitude
> E6410.
> Has anybody experienced this problem?
>
> Thanks,
> Sanjay
>
> On Fri, Oct 1, 2010 at 11:06 AM, sanjay kushwaha
> <[1]
sanjay.kushwaha@xxxxxxxxx> wrote:
>
> havent tried stable-2.6.32.x on Radeon. It works with nomodeset and
> nopat options with stable-2.6.33.x branch.
>
> On Fri, Oct 1, 2010 at 10:57 AM, Konrad Rzeszutek Wilk
> <[2]
konrad.wilk@xxxxxxxxxx> wrote:
>
> On Fri, Oct 01, 2010 at 10:06:48AM -0700, sanjay kushwaha wrote:
> > When I dont use nomodeset option, dom0 boots fine X runs properly.
> So Fedora
> > 13 (X86_64) distro with stable-2.6.32.x pvops kernel and
> xen-unstable works
> > fine for i915 without nomodeset option.
>
> Good to hear it works for you.
>
> What about your radeon laptop?
> >
> > Thanks,
> > Sanjay
> >
> > On Wed, Sep 29, 2010 at 3:56 PM, sanjay kushwaha
> >
> > > Hi Jeremy,
> > > I switched to stable-2.6.32.x branch (which is 2.6.32.21 based)
> but I get
> > > the same problem. Attached is the Xorg.0.log file when I booted
> with
> > > nomodeset option.
> > >
> > > interestingly I did not see any kernel or driver crash messages in
> the
> > > dmesg output. I do see these messages multiple times in
> /var/log/messages
> > > *
> > > Sep 29 15:40:32 vwifi0 gdm-binary[2244]: WARNING: GdmDisplay:
> display
> > > lasted 0.048984 seconds
> > > Sep 29 15:40:32 vwifi0 gdm-binary[2244]: WARNING:
> GdmLocalDisplayFactory:
> > > maximum number of X display failures reached: check X server log
> for errors
> > > *
> > >
> > > Thanks,
> > > Sanjay
> > >
> > >
> > > On Wed, Sep 29, 2010 at 11:57 AM, Jeremy Fitzhardinge
> <[4]jeremy@xxxxxxxx>wrote:
> > >
> > >> On 09/29/2010 11:12 AM, sanjay kushwaha wrote:
> > >> > Hi Folks,
> > >> > I am trying to boot latest xen-unstable on my laptop which has
> Intel
> > >> > i915 graphics. PVOPS dom0 is 2.6.33.6 based (from branch
> > >> > xen/stable-2.6.33.x)
> > >>
> > >> Don't use that branch; it isn't supported (in fact, I deleted it
> a while
> > >> ago). Use xen/stable-2.6.32.x for now.
> > >>
> > >> J
> > >>
> > >> > and the distro is fedora 13 64-bit. The graphics doesnt come up
> and it
> > >> > seems that i915 driver is crashing multiple times. If I boot in
> > >> > run-level 3 (without X) dom0 boots fine.
> > >> > I tried booting the dom0 kernel with nomodeset and nopat
> options
> > >> > without any success. I searched on internet and found that
> multiple
> > >> > people have reported similar problem but I could not find any
> solution.
> > >> >
> > >> > Has anybody found a solution or workaround to this problem?
> > >> >
> > >> > Thanks,
> > >> > Sanjay
> > >> >
> > >> > PS: I have another laptop with same version of xen and pvops
> dom0 but
> > >> > it has ATI radeon graphics card. This laptop boots dom0 with
> graphics
> > >> > when I give nomodeset and nopat options (but fails if I dont
> give
> > >> > either of those two options).
> > >> >
> > >> >
> > >> >
> > >> > _______________________________________________
> > >> > Xen-devel mailing list
> > >> > [6]http://lists.xensource.com/xen-devel
> > >>
> > >>
> > >
>
> > _______________________________________________
> > Xen-devel mailing list
> > [7]Xen-devel@xxxxxxxxxxxxxxxxxxx
> > [8]http://lists.xensource.com/xen-devel
>
> --
> ----------------------
> Dr. Sanjay Kumar
> Research Scientist
> Intel Corporation
>
> --
> ----------------------
> Dr. Sanjay Kumar
> Research Scientist
> Intel Corporation
>
> References
>
> Visible links
> 1. mailto:sanjay.kushwaha@xxxxxxxxx
> 2. mailto:konrad.wilk@xxxxxxxxxx
> 3. mailto:sanjay.kushwaha@xxxxxxxxx
> 4. mailto:jeremy@xxxxxxxx
> 5. mailto:Xen-devel@xxxxxxxxxxxxxxxxxxx
> 6. http://lists.xensource.com/xen-devel
> 7. mailto:Xen-devel@xxxxxxxxxxxxxxxxxxx
> 8. http://lists.xensource.com/xen-devel
