[2.6.27.7] processor.ko messes up ACPI resume

["Andrea R." <7252d9@gmail.com>]

Hi all,

I was having problems resuming my Acer laptop from suspend-to-RAM, where
upon waking up the screen was flashing madly (think detuned TV). This
laptop had no problems waking up using previous kernel releases, the
latest I had tried before 2.6.27 being 2.6.18.

After long trials, I traced the issue to the "processor.ko" kernel
module: if I unload it - even while the screen is being crazy - all goes
back to normal.

Problem is, that module is needed to probe the CPU's temperature and - I
think - for clock frequency stepping.

Does anyone know how do I get to keep it *and* get working resume
functionality?

I'm using 32-bit Slackware 12.2 at the moment, but the exact same
symptoms were shown by Fedora 11 x86_64.

My laptop has an AMD Turion64 processor and an ATI Radeon Xpress1100
graphics card driven by X.Org's "ati" driver. Please write if you need
lspci's output or more detailed info or tests.

Thanks in advance for your comments.


-- 
~> cat /etc/*-{version,release}|head -n1 && uname -moprs|fold -sw72
Slackware 12.2.0
Linux 2.6.27.7-crrm i686 AMD Turion(tm) 64 Mobile Technology MK-36 
GNU/Linux