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| wiki:system_configuration [2026/01/29 20:45] – [cyclictest] autostatic | wiki:system_configuration [2026/08/11 20:04] (current) – [Power management] autostatic |
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| And ''/dev/cpu_dma_latency'' should now have read-write permissions for root and the audio group (mode 0660). Now you can set CPU latency as low as you like. Bear in mind that setting it to 0 will put your CPU's in an always-on state which wil run them hotter. So be prepared for some extra fan noise. | And ''/dev/cpu_dma_latency'' should now have read-write permissions for root and the audio group (mode 0660). Now you can set CPU latency as low as you like. Bear in mind that setting it to 0 will put your CPU's in an always-on state which wil run them hotter. So be prepared for some extra fan noise. |
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| | === USB autosuspend === |
| | When using an USB audio interface it is recommended to disable the power management of the USB subsystem. This way your USB audio interface won't be disconnected when the kernel thinks it is in an idle state. Disabling the power management can be done by adding the following kernel parameter to your the ''GRUB_CMDLINE_LINUX_DEFAULT'' line in your GRUB configuration: |
| | usbcore.autosuspend=-1 |
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| | And then run ''sudo update-grub''. After a reboot this setting will then be picked up. To activate the setting immediately use the following command: |
| | echo "-1" | sudo tee /sys/module/usbcore/parameters/autosuspend |
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| ==== Filesystems ==== | ==== Filesystems ==== |
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