kernel-2.6.32.10-1.2.92.xendom0.fc12.x86_64 X broken on MacBook

[W. Michael Petullo]

I just tried kernel-2.6.32.10-1.2.92.xendom0.fc12.x86_64 from Mike
Young's repository on my MacBook and found that the video driver does
not seem to work. Lspci reports:

02:00.0 VGA compatible controller: nVidia Corporation GeForce 9400M (rev b1)

The system boots fine until X is supposed to start. Once this happens,
the console freezes. Otherwise, the system continues to operate and
respond to network traffic.

The last thing I seen in Xorg.0.log is "(II) NOUVEAU(0): Opened GPU
channel 2." In a *working* configuration, the next message logged is
"(II) NOUVEAU(0): [DRI2] Setup complete."

There seems to be some related work here:

http://lists.xensource.com/archives/html/xen-devel/2010-02/msg01105.html

I have seen that other people are having some video problems and wanted
to add my own (on the mailing list until we are in Rawhide / Bugzilla).

-- 
Mike

:wq

[Jerry Amundson]

On Wed, Mar 24, 2010 at 8:05 PM, W. Michael Petullo <mike(a)flyn.org&gt; wrote:
>  I just tried kernel-2.6.32.10-1.2.92.xendom0.fc12.x86_64 from Mike
>  Young's repository on my MacBook and found that the video driver does
>  not seem to work. Lspci reports:
>
>  02:00.0 VGA compatible controller: nVidia Corporation GeForce 9400M (rev b1) 
Have previous versions of the xendom0 kernels worked successfully?

>  The system boots fine until X is supposed to start. Once this
> happens,
>  the console freezes. Otherwise, the system continues to operate and
>  respond to network traffic.
>
>  The last thing I seen in Xorg.0.log is "(II) NOUVEAU(0): Opened GPU
>  channel 2." In a *working* configuration, the next message logged is
>  "(II) NOUVEAU(0): [DRI2] Setup complete."
>
>  There seems to be some related work here:
>
>  http://lists.xensource.com/archives/html/xen-devel/2010-02/msg01105.html 
What is the grub.conf entry? Have you passed nomodeset to the kernel module?

jerry

[W. Michael Petullo]

> > I just tried kernel-2.6.32.10-1.2.92.xendom0.fc12.x86_64 from
> Mike
> > Young's repository on my MacBook and found that the video driver does
> > not seem to work. Lspci reports:
> >
> > 02:00.0 VGA compatible controller: nVidia Corporation GeForce 9400M (rev b1) 
 
>  Have previous versions of the xendom0 kernels worked successfully?
Yes. However, I have been away from Xen for a few months. I have lost
track of which kernel I was using before. I know that it worked fine on
my graphics card with no changes to the default (non-Xen) configuration.

>  What is the grub.conf entry? Have you passed nomodeset to the kernel
> module? 
I tried adding nomodeset, but that did not help by itself. I ended up
doing the following:

1. Add nomodeset to kernel command line.

2. Create an xorg.conf that uses the VESA driver (X -configure, edit).

3. Deactivate dri2 and dri in xorg.conf.

4. Boot Xen Dom0 kernel into runlevel 3.

5. rmmod nouveau; init 5.

This works (of course, the VESA driver is not optimal).

-- 
Mike

:wq

[Bill Davidsen]

W. Michael Petullo wrote:
> >> I just tried kernel-2.6.32.10-1.2.92.xendom0.fc12.x86_64 from
> Mike
> >> Young's repository on my MacBook and found that the video driver does
> >> not seem to work. Lspci reports:
> >>
> >> 02:00.0 VGA compatible controller: nVidia Corporation GeForce 9400M (rev b1)
> >>       
>   
>    
> > Have previous versions of the xendom0 kernels worked successfully?
> >     
>
>  Yes. However, I have been away from Xen for a few months. I have lost
>  track of which kernel I was using before. I know that it worked fine on
>  my graphics card with no changes to the default (non-Xen) configuration.
>
>    
> > What is the grub.conf entry? Have you passed nomodeset to the kernel module?
> >     
>
>  I tried adding nomodeset, but that did not help by itself. I ended up
>  doing the following:
>
>  1. Add nomodeset to kernel command line.
>
>  2. Create an xorg.conf that uses the VESA driver (X -configure, edit).
>
>     
In the past I have had success using nomodeset followed by either 
"video=vesafb" or "vga=XXX" for a vesa mode. These have the advantage

(if they work) of (a) not changing the basic config so a better driver 
can be easily tested, and (b) being easily by boot line edit tested 
before making any changes which need file edits.

>  3. Deactivate dri2 and dri in xorg.conf.
>
>  4. Boot Xen Dom0 kernel into runlevel 3.
>
>  5. rmmod nouveau; init 5.
>
>  This works (of course, the VESA driver is not optimal).
>
>     

-- 
Bill Davidsen <davidsen(a)tmr.com&gt;
  "We can't solve today's problems by using the same thinking we
   used in creating them." - Einstein

[W. Michael Petullo]

> >> I just tried kernel-2.6.32.10-1.2.92.xendom0.fc12.x86_64 from
> Mike
> >> Young's repository on my MacBook and found that the video driver does
> >> not seem to work. Lspci reports:
> >>
> >> 02:00.0 VGA compatible controller: nVidia Corporation GeForce 9400M (rev b1)
  
> > What is the grub.conf entry? Have you passed nomodeset to the
> kernel module? 
 
>  I tried adding nomodeset, but that did not help by itself. I ended
> up
>  doing the following:
>  
>  1. Add nomodeset to kernel command line.
>  
>  2. Create an xorg.conf that uses the VESA driver (X -configure, edit).
>  
>  3. Deactivate dri2 and dri in xorg.conf.
>  
>  4. Boot Xen Dom0 kernel into runlevel 3.
>  
>  5. rmmod nouveau; init 5. 
I was able to simplify this a bit:

1. Add nomodeset to kernel command line.

2. Remove all xorg video drivers except the VESA driver.

3. Add "blacklist nouveau" to /etc/modprobe.d/blacklist-nouveau.conf.

4. Run "dracut --force" to rebuild initramfs with new blacklist entry.

This avoids the requirement for a hard-coded xorg.conf. I previously
had trouble keeping the nouveau module from loading. I had forgotten
that it is necessary to rebuild an initramfs to ensure the system does
not load blacklisted modules.

-- 
Mike

:wq

[Boris Derzhavets]

  Kernel been built on branch xen/stable-2.6.32.x checked out via JF's Git Repo does
work with DRM enabled  under Xen 4.0-rc7 on F12. (Radeon HD 4650).  Appears to be
2.6.32.10 in meantime.
  How much sense does make using rpm's based kernel with "nomodeset"
option ?

Boris

--- On Wed, 3/24/10, Jerry Amundson <jamundso(a)gmail.com&gt; wrote:

From: Jerry Amundson <jamundso(a)gmail.com&gt;
Subject: Re: [Fedora-xen] kernel-2.6.32.10-1.2.92.xendom0.fc12.x86_64 X broken on MacBook
To: xen(a)lists.fedoraproject.org
Date: Wednesday, March 24, 2010, 10:36 PM

On Wed, Mar 24, 2010 at 8:05 PM, W. Michael Petullo <mike(a)flyn.org&gt; wrote:
>  I just tried kernel-2.6.32.10-1.2.92.xendom0.fc12.x86_64 from Mike
>  Young's repository on my MacBook and found that the video driver does
>  not seem to work. Lspci reports:
>
>  02:00.0 VGA compatible controller: nVidia Corporation GeForce 9400M (rev b1) 
Have previous versions of the xendom0 kernels worked successfully?

>  The system boots fine until X is supposed to start. Once this
> happens,
>  the console freezes. Otherwise, the system continues to operate and
>  respond to network traffic.
>
>  The last thing I seen in Xorg.0.log is "(II) NOUVEAU(0): Opened GPU
>  channel 2." In a *working* configuration, the next message logged is
>  "(II) NOUVEAU(0): [DRI2] Setup complete."
>
>  There seems to be some related work here:
>
>  http://lists.xensource.com/archives/html/xen-devel/2010-02/msg01105.html 
What is the grub.conf entry? Have you passed nomodeset to the kernel module?

jerry
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