[Ao7bei3s]

The X1 Carbon has a Skylake CPU, so the problem that Linux doesn't have support for the higher C-states resulting in reduced battery life and reduced total CPU lifetime should apply to you, right??

Previous HN discussion: https://news.ycombinator.com/item?id=11492070

(I have tested the predecessor (gen3) and liked it. I'm waiting for the 16GB gen4 X1 Carbon to become available here in Germany, drop enough in price to be affordable, and for Linux to support all the C-states.)

[drakonka]

I think an upcoming patch is meant to greatly improve this, at least judging by this, aside from solving the boot parameter requirement issue: https://www.reddit.com/r/thinkpad/comments/4c6q6w/fixing_int...

> I have finally compiled a patched kernel myself and couldn't be happier with results. Not only battery life increased (~1 additional hour), but what's more important, performance on battery improved significantly.

(Note: I have not tried this myself yet...maybe this weekend)

Some other possibly useful links I just came across related to this patch:

- https://www.reddit.com/r/thinkpad/comments/4d6qj5/psa_linux_...

- https://fedoraproject.org/wiki/RawhideKernelNodebug

[nja4]

So, after this, my skylake xps 13 will be a better candidate for Ubuntu?

[jpetso]

Looking at the patch, it doesn't appear to tackle the sleep state coordination issues that mjg59 was talking about. Which doesn't mean that the impact of this patch on power savings isn't still nice to have. I figure it'll take them a while longer to get sleep states working as intended.