[ltp] Trying to get Suspend to RAM working on an X31 (John Magolske)
Alexandre Kalmeijer
linux-thinkpad@linux-thinkpad.org
Sun, 5 Oct 2014 18:01:38 +0200
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Google for TLP and configure it to your needs.
RESTORE_DEVICE_STATE_ON_STARTUP= should solve your problems with
hibernation/sleep.
Hard disk spin down times are also included.
Good luck
On Sat, Oct 4, 2014 at 8:59 PM, Dan Saint-Andre <saint@grillongroup.org>
wrote:
> The last time I fought this issue, I learned that suspend-to-RAM [aka,
> sleep] required a suitable swap space. With 16GB of ram, I never used any
> swap space and thus did not configure a swap file system. Once I added
> swap partition, I got sleep to work.
>
> There are still some wrinkles with sleep operation. These wrinkles are
> worse during suspend-to-disk [aka, hibernate]. Your video hardware might
> not wake up correctly. This depends a lot on what was going on, on screen,
> at the time you went to sleep. This usually involved low-battery event
> causing a sleep/hibernate event while the video was working at something
> like playing a video or similar. For me, CTRL-ALT-BKSP (restart Xorg)
> usually fixed things.
>
> Some network hardware suffers from similar troubles when it wakes up. It
> was rare that I could repair this with any sort of warm-restart of
> connections, drivers, or similar. I usually had to reboot.
>
> Both of the above were very hardware specific.
>
> Regards,
> ~~~ 0;-Dan
>
>
>
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<div dir=3D"ltr">Google for TLP and configure it to your needs.<div><div>RE=
STORE_DEVICE_STATE_ON_STARTUP=3D should solve your problems with hibernatio=
n/sleep.</div></div><div>Hard disk spin down times are also included.</div>=
<div>Good luck=C2=A0</div><div><br></div></div><div class=3D"gmail_extra"><=
br><div class=3D"gmail_quote">On Sat, Oct 4, 2014 at 8:59 PM, Dan Saint-And=
re <span dir=3D"ltr"><<a href=3D"mailto:saint@grillongroup.org" target=
=3D"_blank">saint@grillongroup.org</a>></span> wrote:<br><blockquote cla=
ss=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pa=
dding-left:1ex">
=20
=20
=20
<div text=3D"#000099" bgcolor=3D"#FFFF99">
The last time I fought this issue, I learned that suspend-to-RAM
[aka, sleep] required a suitable swap space.=C2=A0 With 16GB of ram, I
never used any swap space and thus did not configure a swap file
system.=C2=A0 Once I added swap partition, I got sleep to work.<br>
<br>
There are still some wrinkles with sleep operation.=C2=A0 These wrinkle=
s
are worse during suspend-to-disk [aka, hibernate].=C2=A0 Your video
hardware might not wake up correctly. This depends a lot on what was
going on, on screen, at the time you went to sleep. This usually
involved low-battery event causing a sleep/hibernate event while the
video was working at something like playing a video or similar.=C2=A0 F=
or
me, CTRL-ALT-BKSP (restart Xorg) usually fixed things.<br>
<br>
Some network hardware suffers from similar troubles when it wakes
up.=C2=A0 It was rare that I could repair this with any sort of
warm-restart of connections, drivers, or similar. I usually had to
reboot.<br>
<br>
Both of the above were very hardware specific.<br>
<br>
Regards,<br>
~~~ 0;-Dan<br>
<br>
<br>
</div>
</blockquote></div><br></div>
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