Force FB off

[Geert Uytterhoeven]

On Wed, Dec 15, 2010 at 14:39, Jan Engelhardt <jengelh at medozas.de> wrote:
> On Tuesday 2010-12-14 21:18, Dave Airlie wrote:
>>On Wed, Dec 15, 2010 at 3:41 AM, Jan Engelhardt <jengelh at medozas.de> wrote:
>>
>>>
>>>booting with video=off nor video=i915:off has any effect on skipping
>>>FB. What is the correct option to stop FB from taking over my boot
>>>consoles?
>>
>>For KMS its not fb taking over its the drm i915 driver, nomodeset will
>>stop it however X will no longer work since it relies on the kernel
>>driver.
>
> That would make sense. Furthermore I discovered that video=vesafb:off
> also has no effect, but here it is clear because the source code ignores
> the return value of fb_get_options, and so ignores any off command.
>
> The real strange thing is that video=offb:off on an Apple Xserve G5
> PPC64, while probably skipping OFFB initialization, still ends up in a
> 640x480 mode with a 8x16 font instead of retaining the PROM
> console/font.

That just means something different than offb is driving the console now.
What does /proc/fb say?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds