suspend-to-ram woes on a thinkpad x41

Alex Mandel tech_dev at
Sun Jan 29 01:37:22 UTC 2006

Michael Shulman wrote:
> Hi,
> I just installed ubuntu breezy on my new thinkpad x41, dual-booting
> with winXP (using PQ BootMagic, if that makes a difference).  Overall
> I like it very much; everything seems to work fine out-of-the-box,
> except suspend-to-ram.  When I try to suspend to ram (either with
> Fn-F4, or by manually running /etc/acpi/, the screen blanks
> and the crescent-moon LED comes on (but the fan doesn't stop, so I'm
> not sure if it is completely suspending).  It is then impossible to
> wake back up.  Pressing the power button doesn't do anything; the
> screen remains blank.  However, if I close and reopen the lid, the
> screen comes back on, showing something like the following:
> [4296198.675000] Stopping tasks:===============================================
> ======================|
> I can then switch consoles with Alt+Fx, but other than that, the
> keyboard is unresponsive; not even Ctrl-Alt-Del has an effect.  If I
> try to switch to the Xwindows console (#7), the computer hangs
> completely.
> If I originally ran /etc/acpi/ from a console, then when I
> switch back to that particular console, I can see that it is still
> running, and moreover accepting input; the keyboard works on that
> particular console.  Of course the input doesn't actually do anything,
> and I can't break the program with Ctrl-C either.
> I have looked everywhere I can for help, including
> and and the ubuntu forums and mailing list archive.  I
> haven't found any description of a problem with the same symptoms
> (athough there are somewhat similar ones), and other people seem to
> have little problem with suspend-to-ram on an X41.  I have tried
> various suggested solutions anyway, including adding
> acpi_sleep=s3_bios to the kernel options, upgrading the package
> acpi-support to v0.51 from dapper, commenting and uncommenting various
> lines in /etc/default/acpi-support, and trying both 'mem' and
> 'standby' as ACPI_SLEEP_MODE.  Nothing seems to help.  As far as I can
> tell, once it goes to sleep, it just refuses to wake up again.
> Any suggestions would be greatly appreciated.  Thanks!
> Mike

Check for a BIOS upgrade from IBM. I couldn't even tell how much battery 
I had left before I did this.

Also if you're running gnome see if using gnome-power-manager works 
instead of the keyboard shortcut. My Keyboard shortcut doesn't work but 
the power manager does.


More information about the ubuntu-users mailing list