Renkin42
n00b
Joined: 11 Jan 2024
Posts: 20
Location: McKinleyville, CA
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 Posted: Sat Apr 26, 2025 2:45 am Post subject: Ryzen TDP control in Steam SteamOS mode? |
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Before reinstalling gentoo recently I was running bazzite on my GPD Win 4 with a Ryzen 5 7640u. I was able to set up a gamescope session for steam and everything works but unfortunately I don't seem to have TDP control ffom the quick assist menu, which was working in bazzite. I tried installing RyzenAdj but no luck there. Would anyone happen to know what tweaks they do to get better TDP control? Notably I do get this error when I run ryzenadj:
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failed to get /sys/kernel/ryzen_smu_drv/pm_table: No such file or directory
failed to map /dev/mem: Operation not permitted
If you don't want to change your memory access policy, you need a kernel module for this task.
We do support usage of this kernel module https://gitlab.com/leogx9r/ryzen_smu
Unable to get memory access
Unable to init power metric table: -5, this does not affect adjustments because it is only needed for monitoring.
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I seem to recall this issue the last time I tried to mess with the tdp on gentoo, but for the life of me I can't remember if or how I got around it. The mentioned kernel module doesn't seem to support newer cpus and I'm not turning up any inffo about the memory access rules bit. Not sure if this is even relevant to my actual goal.
EDIT: I found my old config and figured out the memory thing requires the "iomem=relaxed" kernal command line parameter. Sadly still no luck on tdp control in steam though so that wasn't it. |
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