[ltp] T520 won't resume from sleep (suspend to ram) properly

[Marius Gedminas]

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On Tue, Aug 16, 2011 at 05:51:06PM -0700, keitho@strucktower.com wrote:
> I am frustrated that I can't find a solution to this. My new Thinkpad T520
> has never properly resumed from suspend-to-ram.
>=20
> It sleeps fine when I press FN-F4, then wakes up fast when I press FN
> only. However, even though the screen is recovered and the mouse cursor
> moves, I can't activate any menus, select any windows, use the keyboard,
> or do anything productive. The only way I can recover is to force a hard
> reboot by pressing and holding the power button for 5 seconds (argh!).

Have you tried accessing the laptop over the network?

Have you tried to switch to a different virtual console with
Ctrl+Alt+Fx?

Have you tried the magic Alt+SysRq?

Do you use Compiz as a window manager?

It could be an Intel graphics driver bug.  I've seen something very much
like what you described sometimes on my T61 on resume; killall -9 compiz
(from /dev/tty1 or SSH) fixes the situation for me.

> There was this thread on debian-laptop thoroughly describing the same iss=
ue:
> http://www.mail-archive.com/debian-laptop@lists.debian.org/msg52285.html

Sounds like the same thing.  I also sometimes see this sort of video
freeze when I leave the laptop idle for too long (and trigger the
screensaver).

> a few months ago with no real solution- Martin Steigerwald suggested that
> upgrading the kernel would solve the problem, but I have moved up to
> version 3.1.0-rc1 with no luck.

Hm.

> Any suggestions would be greatly appreciated. I am running Debian with the
> 3.1.0-rc1 kernel, 4Gb ram, onboard integrated Intel graphics only, SSD
> drive, standard gnome desktop, MBR boot.

Marius Gedminas
--=20
Undergraduates owe their happiness chiefly to the fact that they are no
longer at school...The nonsense which was knocked out of them at school is
all gently put back at Oxford or Cambridge
	        -- Sir Max Beerbohm (1872-1956)

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