On Mon, 21 Mar 2005, Andrew Morton wrote:

> Guennadi Liakhovetski <[EMAIL PROTECTED]> wrote:
> >
> > Hi
> > 
> > Worked on 2.6.10-rc2. With 2.6.11 during boot upon switching to fb, text 
> > becomes orange, penguins look sick (not sharp). X starts and runs normal 
> > (doesn't use fb), switching to vt not possible any more. Disabling 
> > fb-console in kernel config fixes VTs. Reverting pm2fb.c fixes the 
> > problem.
> 
> Guennadi, could you please confirm that
> 
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.12-rc1/2.6.12-rc1-mm1/broken-out/pm2fb-x-and-vt-switching-crash-fix.patch
> 
> fixes this one?

As discussed with Jim on linux-fbdev-devel this patch fixes the vt / X 
switching problem. We still don't know why starting with 2.4.11 I have to 
switch CONFIG_FB_PM2_FIFO_DISCONNECT off to restore colours / images. Jim 
says it is doubtful that this option brings any optimisations at all, 
still, it is a bit worrying, that something that worked with earlier 
kernels stopped working now. I traced this breakage down to the patch to 
pm2fb.c after 2.6.10-rc2. Jim wanted to try to reproduce this problem with 
my fb-geometry / colour settings, but I haven't heard from him since then, 
Jim?

Thanks
Guennadi
---
Guennadi Liakhovetski

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