this post was submitted on 27 Aug 2024
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You're describing a problem, but you'll need to provide actual information. Is a process showing 100% util? Which process? What kernel version have you been testing on? Have you checked to ensure the amd-pstate module is loaded and getting frequencies properly?
A big issue i have it does not show any process running at 100% and i tested Kernel 6.8 to 6.11.Rc.x Nvidia Release, Beta etc I used performance and the default's on Ubuntu and Fedora, i even tried to disable USB power saving mode that is a common issue with Linux on laptops, you think something like amd_pstate=guided etc will fix it? I seen many types of hardware, driver and firmware bugs over the years but i have not seen one like this in maybe 6-10 years and the last was a Intel atom CPU? and maybe a few Realtek Driver issue's, i'm going to try Debian unstable etc soon, but i need to buy a USB SSD but my LMDE laptop with a backport Kernel works fine on my other laptop without a Nvidia GPU, and i think Debian's Kernels has AMD-TEE support as of Kernel 6.9.7?, i have not had to debug hardware in a long time and i have a lot going on for the next few month's so if up stream does not fix it i can start debugging I'm going to do a little bit like disabling hardware to see if it is the nic or a usb port etc.
You should almost always use
amd_pstate=guided/activeon anything newer than Zen 2, although Arch Wiki saysactiveis the default since kernel 6.5. Even if it doesn't seem to fix the problem, it's the preferred way to run those CPUs (if it works).guided+conservativescaling governor might help. Maybe it's just a reporting bug tho, wouldn't be a first for AMD.Form what i seen someone reported a bug that AMD APUs will spam a system with a Nvidia GPU.