[ubuntu-uk] Suspend on lid close - Thinkpad x121e

Simon Greenwood sfgreenwood at gmail.com
Mon Oct 10 13:09:01 UTC 2011

On 10 October 2011 13:45, James Morrissey <morrissey.james1 at gmail.com>wrote:

> Hi,
> I was wondering if anyone could help me in getting my suspend-on-lid-close
> to work on my Thinkpad x121e.
> This is a new piece of hardware and there doesn't appear to be much on the
> web for solving it the problem.
> When i close the lid, the machine seems to suspend, but when i open it i am
> met with a blank screen and can do nothing other than hard power down. I
> have noticed, however, that when i have my machine plugged into an external
> monitor, i can close the lid, observe the suspend and then open the lid to
> get a password login screen.
> So it seems that the suspend is working but that the monitor doesn't come
> back to life when i open the lid. Having an external monitor plugged in
> seems to wake the monitor up and so give me the login screen.
> This makes me think that this might not be too hard to solve. i don't
> really understand a lot of the hardware stuff but think that there might be
> a simple way to make sure that the screen triggers when i open the lid (or
> make the machine think that there is an external monitor plugged in). I am
> guessing that there is just a switch that i need to stick to 'on'.
> Someone has suggested adding nomodeset to the grub kernel parameters, but i
> am not sure how to do this or what other effects of doing it might be.
> The thinkpad x121e is great as a portable machine. Getting this to work
> would vastly increase its portability.
> Any suggestions?
I had a similar problem with a Thinkpad Edge 11 that I bought the other week
as an emergency replacement for my Dell XPS. The solution for that was to
change sata-mode from AHCI to compatibility in the BIOS, which works *most*
but not all of the time. There are also boot args which I can't find online
right now and that I haven't tried. I would be interested to know how you're
finding Ubuntu on it as it's not wholly satisfactory to me.


Twitter: @sfgreenwood
"post-apocalyptic allen keys"
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