Bug#567747: Bug#569314: Enabling CONFIG_VT_HW_CONSOLE_BINDING fixed this

[xdrudis]

On Tue, Feb 16, 2010 at 01:37:14PM +0100, maximilian attems wrote:
> On Tue, Feb 16, 2010 at 10:59:05AM +0100, Michel Dänzer wrote:
> > 
> > Interesting, has this been reported to the kernel package maintainers?
> > 
> 
> done in latest 2.6.32-9 will probably be uploaded together with
> 2.6.32.9.
> 
> option was disabled as long time ago as a dev option.
> back then most fb drivers wouldn't unbind.
> 
> thanks for the test.
> 

Thanks, I'll try 2.6.32-9 when I can. I guess I'll still need to patch for my 
laptop quirk.
For now I can confirm that in my tests the kernels that need vga=ext to boot 
have CONFIG_VT_HW_CONSOLE_BINDING
not set. The custom kernel I compiled with inteldrmfb compiled in and efifb and 
vesafb not selected
does not need vga=ext, but I've now seen that i has 
CONFIG_VT_HW_CONSOLE_BINDING=y .




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Bug#567747: workaround for no-video on i915: vga=ext

[xdrudis]

On Sun, Feb 14, 2010 at 12:39:36PM +0100, Erich Schubert wrote:
> Hi,
> I added vga=ext to my boot parameters, and with that my system boots
> fine (although not in the usual vga=ext 50 lines vga mode, but it DOES
> activate my i915 framebuffer?!? it's definitely running the native
> 1440x900 resolution of my screen.)
> Maybe this prevents efifb from running (or resets the video after
> GRUB?), and thus allows i915 to get the video device properly?
> 

Thank you. I have tried and it also works for me (with the forcelvds patch, 
because otherwise inteldrmfb thinks my laptop lid is closed and no use drawing
any screen). 

If I pass to the kernel vga=ext instead of video=i915 I boot in text mode, but 
afterwards
X loads fine and I can switch vts smoothly (Ctrl-Alt-F1, Ctrl-Alt-F7). Must be 
KMS. Efifb 
does no longer appear in logs, and fb0 is inteldrmfb. 

If I use both parameters vga=ext and video=i915 it boots in graphical mode 
and X loads fine, KMS fine.

I'll try 2.6.32-9 when it gets to sid, to see if that works even without 
vga=ext.




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