Re: Dual screen framebuffer development advice

["Antonino A. Daplas" <adaplas@hotpop.com>]

--- Andrew Walrond <andrew@walrond.org> wrote:

> On Monday 22 Nov 2004 22:14, Antonino A. Daplas
> wrote:
> > On Tuesday 23 November 2004 05:35, Andrew Walrond
> wrote:
> > >
> > > I've got this working nicely now. I have a
> recent agp nvidia card and an
> > > old pci matrox millenium in this dual opteron
> machine running 64bit
> > > linux. I boot into a console on the matrox using
> the built-in matroxfb
> > > driver, then startx which runs on the nvidia
> card using the nv driver. I
> > > can then work on my fb application in X, viewing
> the output on the second
> > > monitor via the matrox card. Nice!
> >
> 
> I've just done a bk pull from linus and build a new
> kernel (was using post rc2 
> before) and now this nice scheme (see above) fails
> to work:
> 
> When I 'startx', the X log complains about no core
> keyboard, my usb keyboard 
> stops responding and both screens go blank. I can
> only get access by ssh from 
> another machine.
> 
> Nothing changed other than kernel; using same
> .config.
> 
> If I boot on rivafb console instead of matroxfb,
> startx and keyboard work 
> fine.
> 
> Before I start hunting down the problem; Do any
> recent changes spring to mind?

-rc3 is bug-fix only, so no, I can't think of any changes in fbdev/fbcon
that will cause your problem, unless someone submitted changes without
passing through this list.

Anyway, here's linus' changelog between rc2 and rc3.

  o fbdev: Fix for using >16 pixel wide font in fb console*** 
  o fbdev: Support for bigger than 16x32 fonts in softcursor
  o fbdev: Support for bigger than 16x32 fonts in rivafb cursor
  o fbcon: Disable fbcon cursor if vt softcursor is enabled***
  o fbdev: Allow mode change even if EDID block is not found
  o fbdev: Fix cursor in doublescan mode in atyfb
  o fbdev: Fix typo in atyfb
  o fbdev: Change the find_mode behavior***
  o rivafb: fix broken burst length calculation
  o fbdev: Fix screen corruption in neofb
  o fbdev: Fix lockup when switching to/from X/console
  o fbdev: Fix module_param in rivafb
  o fbdev: Fix crash if fb_set_var() called before register_framebuffer()***
  o fbdev: fix wrong colors at 16 bpp in tridentfb

*** affects core fbcon/fbdev layer

Tony




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