After installing also https://launchpad.net/~canonical-kernel-team/+archive/ppa/+files/linux-image-extra-3.13.0-28-generic_3.13.0-28.51_amd64.deb (as suggested by Jonathan here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1303420/comments/21) I can boot with this kernel image. The wifi switch works just like in 3.14-rc4+ (i.e.: it performs a soft block, rfkill list shows no hp-* entries).
After installing also https:/ /launchpad. net/~canonical- kernel- team/+archive/ ppa/+files/ linux-image- extra-3. 13.0-28- generic_ 3.13.0- 28.51_amd64. deb (as suggested by Jonathan here: https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1303420/ comments/ 21) I can boot with this kernel image. The wifi switch works just like in 3.14-rc4+ (i.e.: it performs a soft block, rfkill list shows no hp-* entries).