Also, it seems unlikely to be related, but does it happen every time, or only when you see, in "dmesg",
[13078.843784] Corrupted low memory at ffff8800000067f0 (67f0 phys) = 2000000100000000 [13078.843808] ------------[ cut here ]------------ [13078.843819] WARNING: CPU: 0 PID: 17156 at /home/kernel/COD/linux/arch/x86/kernel/check.c:140 check_for_bios_corruption+0x10e/0x120() [13078.843821] Memory corruption detected in low memory -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1457490 Title: Chrome using only one core after S3/resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1457490/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs