Unable to Change power_profile for AMD Radeon Graphics Card
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I wanted to change power_profile to a lower one for my gpu/cpu.
And it seems I'm unable to change anything in the folders or subfolders of /sys/class/drm/card0/device via combinations of sudo, tee or complete root command: sudo -i
In case you don't know, I have a completely new and clean Ubuntu installation, and I'm not sure why this is happening.
On any of the files, I either get permission denied error (even if I run as root) or invalid argument if I edit any of the files with sudo gedit or echo | sudo tee.
root@SATELLITE-L855:/sys/class/drm/card0/device# echo low | sudo tee power_profile
low
tee: power_profile: Invalid argument
vaidas@SATELLITE-L855:/sys/class/drm/card0/device$ sudo echo "low" > power_profile
bash: power_profile: Permission denied
vaidas@SATELLITE-L855:/sys/class/drm/card0/device$ sudo echo manual > power_dpm_force_performance_level
bash: power_dpm_force_performance_level: Permission denied
command-line drivers permissions graphics amd-graphics
edited Mar 21 at 16:17
Jeff
812719
asked Mar 21 at 16:01
user3789797user3789797
345
add a comment |
I wanted to change power_profile to a lower one for my gpu/cpu.
And it seems I'm unable to change anything in the folders or subfolders of /sys/class/drm/card0/device via combinations of sudo, tee or complete root command: sudo -i
In case you don't know, I have a completely new and clean Ubuntu installation, and I'm not sure why this is happening.
On any of the files, I either get permission denied error (even if I run as root) or invalid argument if I edit any of the files with sudo gedit or echo | sudo tee.
root@SATELLITE-L855:/sys/class/drm/card0/device# echo low | sudo tee power_profile
low
tee: power_profile: Invalid argument
vaidas@SATELLITE-L855:/sys/class/drm/card0/device$ sudo echo "low" > power_profile
bash: power_profile: Permission denied
vaidas@SATELLITE-L855:/sys/class/drm/card0/device$ sudo echo manual > power_dpm_force_performance_level
bash: power_dpm_force_performance_level: Permission denied
command-line drivers permissions graphics amd-graphics
edited Mar 21 at 16:17
Jeff
812719
asked Mar 21 at 16:01
user3789797user3789797
345
1
Please don't bold code or command snippets. instead please use the guidelines here to display your snippets. see editing-help on how to use backticks for your inline code.
– Jeff
Mar 21 at 16:20
add a comment |
I wanted to change power_profile to a lower one for my gpu/cpu.
And it seems I'm unable to change anything in the folders or subfolders of /sys/class/drm/card0/device via combinations of sudo, tee or complete root command: sudo -i
In case you don't know, I have a completely new and clean Ubuntu installation, and I'm not sure why this is happening.
On any of the files, I either get permission denied error (even if I run as root) or invalid argument if I edit any of the files with sudo gedit or echo | sudo tee.
root@SATELLITE-L855:/sys/class/drm/card0/device# echo low | sudo tee power_profile
low
tee: power_profile: Invalid argument
vaidas@SATELLITE-L855:/sys/class/drm/card0/device$ sudo echo "low" > power_profile
bash: power_profile: Permission denied
vaidas@SATELLITE-L855:/sys/class/drm/card0/device$ sudo echo manual > power_dpm_force_performance_level
bash: power_dpm_force_performance_level: Permission denied
command-line drivers permissions graphics amd-graphics
edited Mar 21 at 16:17
Jeff
812719
asked Mar 21 at 16:01
user3789797user3789797
345
I wanted to change power_profile to a lower one for my gpu/cpu.
And it seems I'm unable to change anything in the folders or subfolders of /sys/class/drm/card0/device via combinations of sudo, tee or complete root command: sudo -i
In case you don't know, I have a completely new and clean Ubuntu installation, and I'm not sure why this is happening.
On any of the files, I either get permission denied error (even if I run as root) or invalid argument if I edit any of the files with sudo gedit or echo | sudo tee.
root@SATELLITE-L855:/sys/class/drm/card0/device# echo low | sudo tee power_profile
low
tee: power_profile: Invalid argument
vaidas@SATELLITE-L855:/sys/class/drm/card0/device$ sudo echo "low" > power_profile
bash: power_profile: Permission denied
vaidas@SATELLITE-L855:/sys/class/drm/card0/device$ sudo echo manual > power_dpm_force_performance_level
bash: power_dpm_force_performance_level: Permission denied
command-line drivers permissions graphics amd-graphics
command-line drivers permissions graphics amd-graphics
edited Mar 21 at 16:17
Jeff
812719
asked Mar 21 at 16:01
user3789797user3789797
345
edited Mar 21 at 16:17
Jeff
812719
asked Mar 21 at 16:01
user3789797user3789797
345
edited Mar 21 at 16:17
Jeff
812719
edited Mar 21 at 16:17
Jeff
812719
edited Mar 21 at 16:17
Jeff
812719
812719
asked Mar 21 at 16:01
user3789797user3789797
345
asked Mar 21 at 16:01
user3789797user3789797
345
asked Mar 21 at 16:01
user3789797user3789797
345
345
1
Please don't bold code or command snippets. instead please use the guidelines here to display your snippets. see editing-help on how to use backticks for your inline code.
– Jeff
Mar 21 at 16:20
add a comment |
1
Please don't bold code or command snippets. instead please use the guidelines here to display your snippets. see editing-help on how to use backticks for your inline code.
– Jeff
Mar 21 at 16:20
1
1
Please don't bold code or command snippets. instead please use the guidelines here to display your snippets. see editing-help on how to use backticks for your inline code.
– Jeff
Mar 21 at 16:20
Please don't bold code or command snippets. instead please use the guidelines here to display your snippets. see editing-help on how to use backticks for your inline code.
– Jeff
Mar 21 at 16:20
add a comment |
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Please don't bold code or command snippets. instead please use the guidelines here to display your snippets. see editing-help on how to use backticks for your inline code.
– Jeff
Mar 21 at 16:20