[blfs-support] /dev/fb0 not being created on boot

Ken Moffat zarniwhoop at ntlworld.com
Thu Nov 21 09:20:50 PST 2013


On Thu, Nov 21, 2013 at 10:33:25AM -0600, Bruce Dubbs wrote:
> Richard Melville wrote:
> > I've just configured a new 3.12 kernel and now /dev/fb0 is not being
> > created, despite all the necessary configurations being built into the
> > kernel.  This means that I can't get a decent resolution in the console; I
> > was using vga=792.
> >
> > My old kernel was a 3.7-rc8 and worked without problems.  The config file
> > (in relation to the framebuffer at least) appears to be identical for both
> > kernels.
> >
> > This is driving me crazy.  Any help or suggestions much appreciated.
> 
> The vga= setting has been deprecated for some time.  Use video=1024x768 
> or similar resolution.
> 
> I'm not sure why you don't have /dev/fb0, my 3.11.4 kernel has it:
> 
 3.7 was a year ago : 5 kernel releases.  A lot has changed in that
time.  Which video driver are you using ?  Are you using KMS (if it
is supported for your driver) ?

ĸen
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