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Re: [Xen-devel] pvops Dom0 graphics doesnt work with Intel i915

To: sanjay kushwaha <sanjay.kushwaha@xxxxxxxxx>
Subject: Re: [Xen-devel] pvops Dom0 graphics doesnt work with Intel i915
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Thu, 7 Oct 2010 22:33:49 +0300
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
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On Thu, Oct 07, 2010 at 12:12:30PM -0700, sanjay kushwaha wrote:
>    Hi Konrad,
>    Unfortunately T410 doesnt have a serial port and neither does the docking
>    station. I havent had any success with USB-to-Serial port dongles in the
>    past. is there any way to get the serial port output?
> 

Is that vPro laptop? If yes, then it should have Intel AMT (Active Management 
Technology),
which provides SOL (Serial Over Lan).

-- Pasi

>    Thanks,
>    Sanjay
> 
>    On Thu, Oct 7, 2010 at 11:05 AM, Konrad Rzeszutek Wilk
>    <[1]konrad.wilk@xxxxxxxxxx> wrote:
> 
>      On Thu, Oct 07, 2010 at 10:36:34AM -0700, sanjay kushwaha wrote:
>      > Hi Konrad,
>      > I tried your tree. It created a 2.6.32.15 based pvops kernel but
>      graphics
>      > with VT-d still doesn't work. when I give iommu=0 on xen kernel
>      command line
>      > in grub menu, graphics works but with iommu=1 it doesnt work (The
>      whole
>      > screen is garbage).
> 
>      Are there any warnings/debug messages in the serial log? Please follow
>      the PVOPS Wiki on how to enable all the debug options.
>      >
>      >
>      > On Wed, Oct 6, 2010 at 6:07 PM, Konrad Rzeszutek Wilk <
>      > [2]konrad.wilk@xxxxxxxxxx> wrote:
>      >
>      > > On Wed, Oct 06, 2010 at 04:02:51PM -0700, sanjay kushwaha wrote:
>      > > > Thanks Pasi.
>      > > >
>      > > > Hi Konrad,
>      > > > Could you please let me know how to get these backported drivers
>      as
>      > > > indicated by Pasi? This is the tree that I have.
>      > >
>      > > Just follow the Wiki. Oh, I need to update it.
>      > >
>      > > Here do this:
>      > >
>      > > git remote add konrad  git://
>      > > [3]git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git
>      > >
>      > > git pull konrad
>      > > git checkout konrad/devel/next.drm
>      > >
>      > > make
>      > >
>      > > >
>      > > > [evans@vwifi0 linux-2.6.32.x]$ git show
>      > > > commit b297cdac0373625d3cd0e6f2b393570dcf2edba6
>      > > > Merge: c6cfd01 64392f6
>      > > > Author: Jeremy Fitzhardinge <[4]jeremy.fitzhardinge@xxxxxxxxxx>
>      > > > Date:   Mon Sep 13 14:27:24 2010 -0700
>      > > >
>      > > >     Merge branch 'xen/next' into xen/next-2.6.32
>      > > >
>      > > >     * xen/next:
>      > > >       xen/netfront: Fix another potential race condition
>      > > >       Revert "xen/netfront: default smartpoll to on"
>      > > >
>      > > > [evans@vwifi0 linux-2.6.32.x]$
>      > > >
>      > > >
>      > > > Thanks,
>      > > > Sanjay
>      > > >
>      > > > On Wed, Oct 6, 2010 at 1:12 PM, Pasi Kärkkäinen <[5]pasik@xxxxxx>
>      wrote:
>      > > >
>      > > > > 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.
>      > > > >
>      > > > > [6]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][7]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][8]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
>      > > > > >        > <[3][9]sanjay.kushwaha@xxxxxxxxx>wrote:
>      > > > > >        >
>      > > > > >        > > 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][10]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
>      > > > > >        > >> > [5][11]Xen-devel@xxxxxxxxxxxxxxxxxxx
>      > > > > >        > >> > [6][12]http://lists.xensource.com/xen-devel
>      > > > > >        > >>
>      > > > > >        > >>
>      > > > > >        > >
>      > > > > >
>      > > > > >        > _______________________________________________
>      > > > > >        > Xen-devel mailing list
>      > > > > >        > [7][13]Xen-devel@xxxxxxxxxxxxxxxxxxx
>      > > > > >        > [8][14]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:[15]sanjay.kushwaha@xxxxxxxxx
>      > > > > >    2. mailto:[16]konrad.wilk@xxxxxxxxxx
>      > > > > >    3. mailto:[17]sanjay.kushwaha@xxxxxxxxx
>      > > > > >    4. mailto:[18]jeremy@xxxxxxxx
>      > > > > >    5. mailto:[19]Xen-devel@xxxxxxxxxxxxxxxxxxx
>      > > > > >    6. [20]http://lists.xensource.com/xen-devel
>      > > > > >    7. mailto:[21]Xen-devel@xxxxxxxxxxxxxxxxxxx
>      > > > > >    8. [22]http://lists.xensource.com/xen-devel
>      > > > >
>      > > > > > _______________________________________________
>      > > > > > Xen-devel mailing list
>      > > > > > [23]Xen-devel@xxxxxxxxxxxxxxxxxxx
>      > > > > > [24]http://lists.xensource.com/xen-devel
>      > > > >
>      > > > >
>      > > >
>      > > >
>      > > > --
>      > > > ----------------------
>      > > > Dr. Sanjay Kumar
>      > > > Research Scientist
>      > > > Intel Corporation
>      > >
>      >
>      >
>      >
>      > --
>      > ----------------------
>      > Dr. Sanjay Kumar
>      > Research Scientist
>      > Intel Corporation
> 
>      > _______________________________________________
>      > Xen-devel mailing list
>      > [25]Xen-devel@xxxxxxxxxxxxxxxxxxx
>      > [26]http://lists.xensource.com/xen-devel
> 
>    --
>    ----------------------
>    Dr. Sanjay Kumar
>    Research Scientist
>    Intel Corporation
> 
> References
> 
>    Visible links
>    1. mailto:konrad.wilk@xxxxxxxxxx
>    2. mailto:konrad.wilk@xxxxxxxxxx
>    3. http://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git
>    4. mailto:jeremy.fitzhardinge@xxxxxxxxxx
>    5. mailto:pasik@xxxxxx
>    6. http://wiki.xensource.com/xenwiki/XenPVOPSDRM
>    7. mailto:sanjay.kushwaha@xxxxxxxxx
>    8. mailto:konrad.wilk@xxxxxxxxxx
>    9. mailto:sanjay.kushwaha@xxxxxxxxx
>   10. mailto:jeremy@xxxxxxxx
>   11. mailto:Xen-devel@xxxxxxxxxxxxxxxxxxx
>   12. http://lists.xensource.com/xen-devel
>   13. mailto:Xen-devel@xxxxxxxxxxxxxxxxxxx
>   14. http://lists.xensource.com/xen-devel
>   15. mailto:sanjay.kushwaha@xxxxxxxxx
>   16. mailto:konrad.wilk@xxxxxxxxxx
>   17. mailto:sanjay.kushwaha@xxxxxxxxx
>   18. mailto:jeremy@xxxxxxxx
>   19. mailto:Xen-devel@xxxxxxxxxxxxxxxxxxx
>   20. http://lists.xensource.com/xen-devel
>   21. mailto:Xen-devel@xxxxxxxxxxxxxxxxxxx
>   22. http://lists.xensource.com/xen-devel
>   23. mailto:Xen-devel@xxxxxxxxxxxxxxxxxxx
>   24. http://lists.xensource.com/xen-devel
>   25. mailto:Xen-devel@xxxxxxxxxxxxxxxxxxx
>   26. http://lists.xensource.com/xen-devel

> _______________________________________________
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