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Re: Activate/deactivate kernel parameters without reboot

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On Thu, Mar 29, 2018 at 11:28 PM, Stefan Monnier
<monnier@iro.umontreal.ca> wrote:
>> I'm running with a 'nouveau.noaccel=1' kernel parameter added at hand
> [...]
>> Is there any way to deactivate and reactivate such a parameter without
>> the need to reboot?
>
> You can try and change it with
>
>     # echo 0 > /sys/modules/<MODULENAME>/parameters/noaccel
>
>
> -- Stefan

Hi, thanks a lot.

I tried it in both situations with same result.

Deactivate:

# cat /sys/module/nouveau/parameters/noaccel
1
# echo 0 > /sys/module/nouveau/parameters/noaccel
bash: /sys/module/nouveau/parameters/noaccel: Permiso denegado

Activate:

# cat /sys/module/nouveau/parameters/noaccel

0
# echo 1 > /sys/module/nouveau/parameters/noaccel
bash: /sys/module/nouveau/parameters/noaccel: Permiso denegado


'Permiso denegado' means 'Permission denied'.


What else shoud/could I do?


Thanks again!

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Thread

Activate/deactivate kernel parameters without reboot rv riveravaldez <riveravaldezmail@gmail.com> - 2018-03-30 00:30 +0200
  Re: Activate/deactivate kernel parameters without reboot Stefan Monnier <monnier@iro.umontreal.ca> - 2018-03-30 04:30 +0200
    Re: Activate/deactivate kernel parameters without reboot rv riveravaldez <riveravaldezmail@gmail.com> - 2018-03-30 10:00 +0200
      Re: Activate/deactivate kernel parameters without reboot <tomas@tuxteam.de> - 2018-03-30 12:00 +0200
        Re: Activate/deactivate kernel parameters without reboot Reco <recoverym4n@gmail.com> - 2018-03-30 13:50 +0200
          Re: Activate/deactivate kernel parameters without reboot <tomas@tuxteam.de> - 2018-03-30 14:00 +0200
          Re: Activate/deactivate kernel parameters without reboot Michael Lange <klappnase@freenet.de> - 2018-03-30 16:30 +0200
            Re: Activate/deactivate kernel parameters without reboot Reco <recoverym4n@gmail.com> - 2018-03-30 18:00 +0200
      Re: Activate/deactivate kernel parameters without reboot Morel Bérenger <berenger.morel@sga-automation.com> - 2018-03-30 13:10 +0200

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