I have recently installed LM 15 x64 (dual-boot with Win7 where LM has its own partition, i.e. there's no Windows installer for Linux involved). It's the first time I have Linux running on this machine and it's doing fine so far, alas, the suspend and hibernate functionality does not seem to work properly. Whenever I try to activate either of them, the display will go blank but immediately come back up, give me a login prompt and the machine will keep running.
I have a hunch that this problem could be related to the hybrid graphics built into the notebook: it has both an Intel onboard chip and a dedicated NVIDIA graphics card, as well as a hardware multiplexer to switch between the two. The multiplexer, however, does not seem to work properly and shows none of the led lights which, under Windows, would indicate which graphics solution is active.
Here's the output of inxi -G, if that's any help:
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Graphics: Card-1: Intel Mobile 4 Series Chipset Integrated Graphics Controller Card-2: NVIDIA G98M [GeForce 9300M GS] X.Org: 1.13.3 drivers: (unloaded: fbdev,vesa) FAILED: nouveau,intel Resolution: firstname.lastname@example.org, email@example.com GLX Renderer: Mesa DRI Mobile Intel GM45 Express Chipset GLX Version: 2.1 Mesa 9.1.7