Re: Bug: Frame-buffer (icon) rotates right in 2.4.0 when SMP

Mohammad A. Haque (mhaque@haque.net)
Sun, 7 Jan 2001 22:00:58 -0500 (EST)


when you use SMP there's suppOsed to be one icon that shows up for
every CPU you have. 2 cpu = 2 icons, 4 cpu = 4 icon. That's what the for
loop in fbcon_show_logo().

So this really isnt a bug, depending on how you look at it. It's
definitely something the lpp author needs to account for.

On Sun, 7 Jan 2001, Karl O. Pinc wrote:

> When displaying a screen-wide icon in the frame buffer for the
> graphics console:
>
> Linux version 2.4.0
>
> Console Drivers
> Video mode selection support
> Support for frame buffer devices (EXPERMENTAL)
> VESA VGA graphics console
>
> I found the right edge of the image to be displayed on the left edge
> -- perhaps 8 pixels worth?
>
> I compiled for a pentium III, SMP on. I've a dual processor Pentium
> III with a Matrox Graphics, Inc. MGA G400 AGP video card. I
> discovered this using the lpp-0.2.0 patch at http://lpp.freelords.org,
> which displays a startup screen.
>
> Fix: turning SMP off fixed the problem.
>
> FYI: fbcon_show_logo() in drivers/video/fbcon.c seems to have a for
> loop with an odd smp_num_cpus reference.
>

-- 

===================================================================== Mohammad A. Haque http://www.haque.net/ mhaque@haque.net

"Alcohol and calculus don't mix. Project Lead Don't drink and derive." --Unknown http://wm.themes.org/ batmanppc@themes.org =====================================================================

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