I have a Sony Vaio VPCSB1X9E (Specification) and on every Linux distro I get the same charging issue. I think it is related to the Linux Kernel but I'm not sure. I'm running Ubuntu 12.10. Basically when I plug in the charger the green light on the power button goes on and off rapidly instead of staying as it is. I don't have this issue on Windows 7 or 8. It doesn't charge the battery and I get annoying warnings stating that it is charging for a second and then that it is on low battery. Unfortunately I can't find any useful help on google regarding this issue. I have tried so many things but none worked. Even if I remove the battery and run the laptop only with the charger connected, the laptop switches off after some random time. This indicates that it is not a battery issue but an issue regarding how the laptop receives energy I guess. I would appreciate any help I could get as I really love ubuntu and want to stick to it. Thank you.