Daniel Dalton wrote: > But should the knew kernel really improve battery life by apparently > 5-6 hours (according to powertop) Five to six hours of improvement would be a very large amount. Probably more than is reasonable. But smaller amounts would not be unusual. > Wouldn't device drivers be more or less the same on ubuntu and debian? Two points. 1. Drivers release with the kernel and therefore different versions of the kernel have different versions of drivers. 2. The different distributions have different rules about licenses are allowed in the distribution. Debian is a free as in freedom software advocate and has removed all of the non-free drivers. Ubuntu has historically included many non-free drivers in their distribution. I don't know what their current policy says. Therefore it is possible that two installations, one Debian and one Ubuntu, would load different drivers. It is possible that one driver would significantly less efficient in terms of battery life than the other. I am very happy to read in the other message that you have solved your problem. Yay! Bob
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