21 Apr
2009
21 Apr
'09
3:38 p.m.
On Tue, Apr 21, 2009 at 12:15:56PM +0200, Robert Persson wrote:
Ken Restivo a ??crit :
Good point. You just reminded me why I blew off hibernate and instead I just use
suspend-to-RAM.
In order to get suspend to play nice with RT/Ingo
kernel on my EEE, I had to turn off Hyperthreading in the BIOS. Everything works fine
now.
ACPI suspend/resume is really where the rubber meets the road in terms of hardware
support. If a kernel can handle suspending to RAM, pretty much it can handle anything.
By the way, suspending to disk ("hibernate") is much easier, and there's
built-in support for it in most kernels. That worked fine with my RT kernel, IIRC, it was
only the suspend-to-RAM that gave me fits until I turned off hyperthreading.
I have 3Gb of memory and hibernating takes a year and a day, much longer
than it would take to shut down, reboot, and open all my applications
again, so until hibernation to a compressed image becomes available
(would it not be possible for instance to zero the unused memory and
then pipe the used and unused memory contents through a compressor?), it
isn't an option unfortunately.
As far as I can remember, I have hyperthreading
enabled in the bios, but
it doesn't seem to be giving me any problems.
You're lucky. My EEE doesn't like it.
So basically, as I said before, apart from the
hibernate issue, which
can be worked around easily, the latest rt kernel seems to be working
like a charm. The main challenge now, will be to make jack2 survive
through a suspend-resume cycle, which is something I never managed to do
in the past.
I doubt that would be possible.
I run a script that kills jackd and every other music app before suspending.
-ken