I am genuinely surprised. Despite 3.17 having worse issues (bugged display dimming as well), 3.18 RC1 appears to work fine without any paramaters at all:
Linux XPS-15Z 3.18.0-031800rc1-generic #201410192135 SMP Mon Oct 20 01:37:04 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
I am genuinely surprised. Despite 3.17 having worse issues (bugged display dimming as well), 3.18 RC1 appears to work fine without any paramaters at all: 031800rc1- generic #201410192135 SMP Mon Oct 20 01:37:04 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Linux XPS-15Z 3.18.0-
Looking forward to 15.04 I guess :)