Comment # 67 on bug 913996 from Takashi Iwai

I tested a few HP laptops with AMD CPU, too, but couldn't see any problem.

The most similar one has originally the following in /proc/cpuinfo:

processor    : 0
vendor_id    : AuthenticAMD
cpu family    : 16
model        : 6
model name    : AMD Athlon(tm) II P340 Dual-Core Processor
stepping    : 3
microcode    : 0x10000b6

After update with ucode-amd, it became:

microcode    : 0x10000c8

The kernel message shows:

[    0.000000] Linux version 3.16.7-7-desktop (geeko@buildhost) (gcc version
4.8.3 20140627 [gcc-4_8-branch revision 212064] (SUSE Linux) ) #1 SMP PREEMPT
Wed Dec 17 18:00:44 UTC 2014 (762f27a)
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.16.7-7-desktop
root=UUID=7d88c9c2-21fe-4cfa-8a1b-45ee3b2f23e9 resume=/dev/sda1 splash=silent
quiet showopts
....
[    0.548736] Unpacking initramfs...
[    1.614490] microcode: updated early to new patch_level=0x010000c8
....
[    1.622607] microcode: CPU0: patch_level=0x010000c8
[    1.622618] microcode: CPU1: patch_level=0x010000c8
[    1.622709] microcode: Microcode Update Driver: v2.00
<tigran@aivazian.fsnet.co.uk>, Peter Oruba