Am 05.07.23 um 12:47 schrieb Masaru Nomiya:
In the Message; Subject : Re: AMD ryzen 1700 zenstates C6 Message-ID : <4f9479d4-dc5e-0713-d1f4-36929b77d2bb@gmx.net> Date & Time: Wed, 5 Jul 2023 12:08:19 +0200 [PM] == Peter McD <peter.posts@gmx.net> has written:
[...] PM> Now my question: I use Tumbleweed and Leap 15.4/5, my processor needs PM> disabling cstate 6. I think I should change with Yast the present PM> boot-loader settings from:
PM> splash=verbose noresume security=apparmor PM> to: PM> splash=verbose noresume security=apparmor processor.max_cstate=5 PM> Would that be the right location?
This is the ChatGPT's answer: To set the processor.max_cstate=5 on Linux, you can add the following line to the /etc/default/grub file: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash processor.max_cstate=5" After that, you need to run the following command: $ sudo update-grub This will update the grub configuration file and apply the changes
Lazy me! I fired up Yast, Bootloader settings - kernel parameter, added "processor.max_cstate=5" OK Test with less /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="splash=verbose noresume security=apparmor processor.max_cstate=5 mitigations=auto" Bingo. Let's whether it works. Thank you ChatGPT, and you Masaru, too! cu Peter