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>>>> "Dave" == Dave Jones
<davej(a)redhat.com> writes:
Dave> On Fri, Jan 06, 2006 at 11:30:39PM -0600, Paul Johnson wrote:
> Is suspend & resume working on your laptop?
>
> I was told that one of the goals in FC5 is to make laptop
> suspend/restore work. I've been testing with various kernels and
> have been having the same problem since 2.6.13. The system will
> suspend, but when I resume, the video stays dark. This is
> happening now with the testing kernel-2.6.15-1.1823_FC4
Dave> You may need to run vbetool before/after. For a lot of video
Dave> hardware, we don't know enough details to bring the screen back
Dave> to life. On these systems, we re-run the video bios to reinit
Dave> the screen using vbetool.
Dave> you can find this tool in pm-utils.
Sometimes it also helps to run another 'startx' on resume and then
just quit the X server... (not in this case since you have the
problem even without X).
You don't say what kind of laptop, but you might also try playing with
the acpi_sleep= options. On my thinkpad T42p, I need to pass
'acpi_sleep=s3_bios'. You can find more info on them in:
/usr/share/doc/kernel-doc-2.6.14/Documentation/power/video.txt
You might find it helpful to use the 'hibernate' script from:
http://suspend2.net/downloads/all/hibernate-1.12-1.i386.rpm
It comes with a ram.conf config for syspend to ram.
It also has handy things like a blacklist of kernel modules that need
to be unloaded/reloaded on suspend resume, services that should be
restarted, etc. It can use optionally use vbetool for video
save/restore.
Dave> Dave
kevin
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