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Re: [Xen-devel] no output on console when using 2.6.39 as dom0-kernel



On Sun, May 29, 2011 at 11:52:46PM +0000, Ronny Hegewald wrote:
> This topic was brought up before for the 2.6.38 kernel one month ago 
> 
> http://lists.xensource.com/archives/html/xen-devel/2011-04/msg01345.html
> 
> It wasnt mentioned there that upstream has some missing functionality for the 
> console, so i assume that it should work.
> 
> First my config: xen 4.1, 2.6.39 upstream linux-kernel, both 32-bit
> 
> As soon the dom0-kernel is booting all output is cleared and the screen stays 
> black, but the kernel is booting fine and i can login and start programs etc.

Nice!
> 
> When i start X the output on the screen works normally. As soon i finish X, 
> the screen turns black again.

When you switch consoles do you go to text mode?
> 
> I added the following patch to the 2.6.39-er kernel, and the output on the 
> console works fine for me on 32 and 64 bit dom0 kernel (the following patches 
> are from Jeremys xen repository). 
> 
> 
>       commit 09e5e7caf4eac83c010ec3d209cc3dfbe1444ae0 

Thank you for finding that commit. Let me stick on the queue.


>       Date:   Mon Feb 9 12:05:54 2009 -0800          
>       xen: allow enable use of VGA console on dom0
> 
> 
> There was another patch to make the vga-console work with 32-bit-kernel. But 
> for me it worked without it.
> 
> 
>       commit adec49def29110b1748a861c8a2cee785a0d1052
>       Date:   Mon Apr 27 13:03:13 2009 -0700                      
>       xen/i386: make sure initial VGA/ISA mappings are not overridden
> 
> 
> Or ss the console suppossed to work without this patches?
> 
> 
> 
> 
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