everybody knows that linux have big problems managing power autonomy of laptops.
But what everybody doesn't know is that the modules that have to manage the battery charging program and powersupply are so bad coded that often battery life is reduced consistently after using a linux system (ubuntu) for just 2-3 month.
Personally i burned 1 battery using it just 3 month with ubuntu when under windows it gives about 5 hours of power (now 50 minutes).
Then I bought a new one, changed the modules, used modules built for my thinkpad x41t and the new battery lost 50% of his life in about 2 month.
How is it possible? I lost something like 200euros cause the 2 batteries where original IBM replacement.
Where I have to submit the bug? Is a kernel bug or the problem is that ubuntu is using not well written modules? or what else?