Matthew Saltzman wrote:
On Wed, 2007-07-25 at 09:50 -0400, Bill Davidsen wrote:
Matthew Saltzman wrote:
On Tue, 2007-07-24 at 22:38 -0400, Bill Davidsen wrote:
I generally don't care about using framebuffers, and when I do I have
been building a kernel from source with the framebuffer built in.
However, in the last month, I've had three cases where I wanted to boot
with a stock modular kernel and framebuffer, and it hasn't worked.
I have built a new initrd with the framebuffer and any needed modules
added with "--preload" to get them in early. I have put video=<fb>
information in the boot, and always the kernel boots, reads the boot
options, and just goes away. Verified using intelfb, radeonfb, and
atyfb, each with any needed drivers. But if I build these kernels from
source, changing the default config only by building-in the same
modules, it works fine.
The last time I tried this with a post-2.4 kernel, it worked, but that
was a 2.5 kernel, and I haven't needed any video performance since.
Is this typical, should it just work, or ??? I have multiple systems to
try, and all with work fine if I build in the exact same modules.
Not sure if this is your exact issue, but it may help anyway.
To get the FB module inserted whenever you install a distro kernel,
create /etc/sysconfig/mkinitrd with contents:
MODULES="radeonfb"
Put any module options in /etc/modprobe.conf before rebuilding the
initrd.
I use the radeonfb on my Thinkpad to deal with a suspend power issue,
and those two steps work for me.
Thanks for the thought, I have the distro kernel installed, but I can
set that and wait, or try to just do a mkinitrd. From the somewhat
sparse docs it looks as if this does the same thing as using "--preload"
which I was trying, but it certainly won't hurt to try again!
Once the options are in /etc/modprobe.conf, you can go ahead and remake
the current kernel's initrd. In fact, I think if you
have /etc/sysconfig/mkinitrd set up, you don't even need to specify the
module when you mkinitrd by hand. That's the implication here, anyway:
http://www.ces.clemson.edu/linux/fc6_setup.shtml#radeon
Thanks for the useful link.
--
Bill Davidsen <davidsen@xxxxxxx>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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