Here is a 4 steps procedures that worked on AB350 Gaming 3 Ryzen 1600 (F4 bios) to get 17.04 with all cores and threads
1)Ubuntu 17.04 install from usb bootable drive with acpi=off (press F6 when display menu) 2)log in and install sudo dpk -i *deb the kernel compiled by nextized worked: http://www.nextized.net/repo/linux/ubuntu-linux-4.10.3_ryzen01_amd64_generic.tar.gz 3) push back acpi=on to your 17.04 system to get all core and threads from your Ryzen sudo gedit /etc/default/grub Change line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=on" sudo update-grub 4) reboot and you should have all cores and threads on 17.04 new install -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1671360 Title: System doesn't boot properly on Gigabyte AM4 motherboards (AMD Ryzen) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1671360/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
