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In /var/log/suspend.log, all is a success or not applicable, except these lines:

Having NetworkManager put all interaces to sleep...Failed.

Failed to connect to wpa_supplicant - wpa_ctrl_open: No such file or directory

Having NetworkManager wake interfaces back up...Failed.

I'm not sure that they are relevant, but I'm stymied.

I tried adjusting the brightness via keyboard, and also tried opening a terminal and commanding a shutdown, but neither worked, so it appears to not load properly at all, though the screen backlight is powered and the system is running.

This is an HP Pavillion Dv7 notebook.

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up vote 2 down vote accepted

I have a suggestion which might be worth trying,

If your system has AMD/ATI graphic card and you are using Proprietary drivers then try disabling them and using the default/ Xorg Radeon drivers, one that Ubuntu selects.

(This may or may not work.. Its Only a guess..)

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I had a similar issue, and it's pretty easy to solve. I'm assuming that this is happening when you open the lid, and it just doesn't seem to wake. What I did was go into system settings, open Power, and under both columns set "When lid is closed" to "Do nothing". I also have it set under Brightness and Lock to not lock the screen. I hope that this helps. Good luck.

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Well the lid isn't necessarily closed when I put it to sleep. That's not really a solution such as a workaround. I'd like to be able to put my laptop to sleep. – Alex Nye Oct 31 '12 at 2:58
Yeah, I haven't figured out how to fix that yet. In the meantime, this has worked relatively well, so I would recommend using it until you find a better solution. – Evan Pak Oct 31 '12 at 13:43

You can fix it by updating BIOS

  1. Reinstall Windows
  2. Download and install bios-update from HP's website

Now it should suspend perfectly!

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