From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Date: Wed, 15 Dec 2010 18:40:25 +0000 Subject: Re: Force FB off Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit To: Jan Engelhardt Cc: linuxppc-dev@lists.ozlabs.org, linux-fbdev@vger.kernel.org, Dave Airlie On Wed, Dec 15, 2010 at 14:39, Jan Engelhardt wrote: > On Tuesday 2010-12-14 21:18, Dave Airlie wrote: >>On Wed, Dec 15, 2010 at 3:41 AM, Jan Engelhardt 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@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