Jorge Almeida wrote:
On Mon, 25 Jul 2005, Richard Fish wrote:
Jorge Almeida wrote:
I upgraded from kernel 2.6.11 (gentoo-sources r4) to 2.6.12 (r6), and
lost my framebuffer console. No console whatsoever, actually, but xdm
starts OK. Checking .config, I see
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=m
Oh, and also, FRAMEBUFFER_CONSOLE should be =y
Will try that (only tomorrow night, I can't access my home box until
then).
Still, what about the "dummy" thing? The configurator doesn't give a
chance. Is it OK like this?
Seems ok (I have the same thing). Looking at the Kconfig file in
drivers/video/console, I find:
config VGA_CONSOLE
bool "VGA text console" if EMBEDDED || !X86
depends on !ARCH_ACORN && !ARCH_EBSA110 && !4xx && !8xx &&
!SPARC32 && !SPARC64 && !M68K && !PARISC
default y
[...]
Which means that VGA_CONSOLE is only configurable if you are doing an
EMBEDDED or non-x86 configuration. For normal x86 builds, VGA_CONSOLE
will always be available, since it defaults to 'y'
Later on, we find:
config DUMMY_CONSOLE
bool
depends on PROM_CONSOLE!=y || VGA_CONSOLE!=y ||
SGI_NEWPORT_CONSOLE!=y
default y
There seems to be a bit of a hole in the logic here, becuase
PROM_CONSOLE is only configurable if you are on SPARC, and
SGI_NEWPORT_CONSOLE is only configurable if you are on an SGI. So on
x86, you are guaranteed both that VGA_CONSOLE will be =y, which means
the middle conditional fails, but both of the other conditionals are
true, so the whole statement is true. So you will get DUMMY_CONSOLE,
and you will not have a chance to configure it since there is no title
after the "bool".
-Richard
--
gentoo-user@gentoo.org mailing list
