[ltp] ACPI S3 power drain and Thinkpad Wiki/radeonfb

[linux-thinkpad@linux-thinkpad.org]

On Thu, 28 Jul 2005, honey@gneek.com wrote:

> On Thu, 28 Jul 2005, Marius Gedminas wrote:
>
>> I assume that Fedora has some way to specify module options for mkinitrd.
>
> Thanks Marius - good tip.  The manual page reveals:
>
> Any  module  options  specified in /etc/modprobe.conf are passed to
> the modules as they are loaded by the initial ramdisk.
>
> - so I guess I could add them there.  It kind of hardcodes it but
> well worth a try - thanks, I will.

Finally tried this: it didn't seem to be working until I realised you
had to actually *remake* your initrd having made a change to
/etc/modprobe.conf, if you are --preload'ing the module into it.
Having done that, it looks like you can hardcode radeonfb into the
initrd - just not switch it on the kernel boot line, which is a
shame.  I'm not sure when, or why, this stopped working for radeonfb,
at least when as a module, but this is a kind of solution.  Thanks
Marius.

If this is useful to anyone with radeonfb as a module, my kernel boot 
line now just contains:
videon=radeonfb

/etc/modprobe.conf:
options radeonfb radeon_force_sleep=1 mode_option=1024x767-24@60

Honey