Hi Christopher, I installed 3.18-vivid from http://kernel.ubuntu.com/~kernel- ppa/mainline/v3.18-vivid/, and the results are concerning:
First I rebooted and booted fine into 3.18. I run "uname -a" just to be sure, and listed 3.18 as the current kernel. Of course I didn't have wifi with 3.18, so I wanted to reboot to go back to 3.13.43. Upon reboot I pushed "del" to make grub show its menu, chose 3.43 and then it got stuck with a blinking cursor. So I shut down the machine, booted again and letting it go into 3.18: this time it dit NOT boot, to my surprise. I would appreciate help in understanding what had changed. Upon reboot using the "failsafe" option, I saw that the booting process got stuck at SMP #1. So I shutdown, rebooted and edited the grub kernel options to include the "nosmp" flag, and that booted into 3.18 just fine --from which I am writing this (via USB-ethernet). Haven't tested yet if the thunderbolt ethernet and suspend work. Before I engage into further reboots that could get stuck, I would appreciate assistance in understanding why the second time 3.18 needed the "nosmp" flag, and how can this be addressed. Additionally I would appreciate help in understanding why grub cannot boot the old 3.13.43 kernel when chosen from the grub menu. I recall this issue when I first installed Ubuntu into thhis macbook pro 11,1: only the default menu option would boot from grub; choosing from the list of available kernels did not work, likely because of the SMP issue. Thanks in advance for your insight. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1371159 Title: [MacBookPro11,1] Unable to suspend in ubuntu 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1371159/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
