Re: suspend to RAM on lifebook 7110

Stefan Seyfried
2006-12-18T06:38:16Z

Hi Miroslav,

i'm taking suspend-devel into cc:, maybe somebody there has an idea about
this, too.

On Thu, Dec 07, 2006 at 11:18:31PM +0100, Miroslav Ruda wrote:
> Hi,
>
> I'm installing opensuse 10.2 on Fujitsu Siemens Lifebook 7110 (intel
> dual core, intel 965 chipset, intel 945 graphics chipset ...).
> Most of hardware works fine, but I have some problems with suspend to
> ram - suspend/resume using s2ram works fine, but display remains nearly
> black. I can see very hardly what's on display, but machine including
> network works fine.

So the graphics card is back up, it is really just the backlight that stays
off.

> I have tested s2ram on Suse 2.6.18.2-23-default or vanila 2.6.19+swsusp2
> with the same problems.
>
> s2ram -i returns
> This machine can be identified by:
> sys_vendor = "FUJITSU SIEMENS"
> sys_product = "LIFEBOOK S7110"
> sys_version = " "
> bios_version = "Version 1.18 "
>
> s2ram -f -a[0123] gives the same result, -s -p combinations doesn't work
> too. Switching back to text console doesn't help. Using xset dpms force
> off doesn't help too. The same problem I have both on text console and
> using Xserver.

Does this machine have fn-keycombos for adjusting the screen brightness?
Try those. I have seen a FSC Q-series (?) that needed just one touch of
the brightness-up key to turn back on the light.

Once we realized this, we could also poke it via the ACPI video module
(just increase the brightness by one level, then decrease it again) and
this also switched the light back on.

Maybe also playing with the "switch internal/external display" key combo
might do something.

I am of course not sure that this also helps on your machine, but it might :-)

Good luck,

Stefan

--
Stefan Seyfried
QA / R&D Team Mobile Devices | "Any ideas, John?"
SUSE LINUX Products GmbH, Nürnberg | "Well, surrounding them's out."