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Old 08-11-2016, 11:45 PM   #1
Ayaskull
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bumblebee : /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied


Hi. First time using slackware and I'm not an very experienced Linux user. Iv'e installed bumblebee for my optimus video card using the automated script from http://docs.slackware.com/howtos:har...nvidia_optimus but trying it with glxgears I get this:

With optirun: "[ 581.894094] [ERROR]Cannot access secondary GPU - error: [XORG] (EE) /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied

[ 581.894129] [ERROR]Aborting because fallback start is disabled."

With primusrun: "primus: fatal: Bumblebee daemon reported: error: [XORG] (EE) /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied".

What's wrong? Thanks in advance!
 
Old 08-12-2016, 11:05 AM   #2
bassmadrigal
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I imagine your user is not a member of the necessary groups. You should at least be a member of video and bumblebee (and you should ensure the bumblebee group is created).

You can run the following command to add yourself to all the recommended groups as well as the bumblebee group (replacing $USER with your username).

Code:
usermod -a -G lp,floppy,audio,video,cdrom,plugdev,power,netdev,scanner,bumblebee $USER
 
Old 08-12-2016, 01:45 PM   #3
Ayaskull
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No, that doesn't solve the problem...
 
Old 08-12-2016, 01:59 PM   #4
bassmadrigal
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Can you provide the output of the following commands?

Code:
groups
ls -la /dev/dri/card0
 
Old 08-12-2016, 02:08 PM   #5
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bash-4.3$ ls -la /dev/dri/card0
crw-rw----+ 1 root video 226, 0 Aug 12 14:35 /dev/dri/card0
 
Old 08-12-2016, 02:15 PM   #6
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And the output of the groups command?

EDIT: You might need to log out and log back in if you changed your user's groups. Sorry I didn't mention that earlier...

Last edited by bassmadrigal; 08-12-2016 at 02:18 PM.
 
Old 08-12-2016, 02:17 PM   #7
Ayaskull
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bash-4.3$ groups
users lp wheel floppy audio video cdrom plugdev power netdev scanner bumblebee
 
Old 08-12-2016, 02:19 PM   #8
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I don't know if you noticed my edit above. If you added yourself to those groups, you might need to log out and log back in for it to take effect.
 
Old 08-12-2016, 02:32 PM   #9
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No. It didn't work. I even restarted the computer. The usermod command doesn't work with sudo using my own account so I logged into root and used my username instead of $USER at the end. Sorry if I had to mention that before.
 
Old 08-12-2016, 02:57 PM   #10
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Quote:
Originally Posted by Ayaskull View Post
No. It didn't work. I even restarted the computer.
Check this post. It seems you might need to tweak your xorg config files for bumblebee.

Quote:
Originally Posted by Ayaskull View Post
The usermod command doesn't work with sudo using my own account so I logged into root and used my username instead of $USER at the end. Sorry if I had to mention that before.
Do you have sudo set up properly? It isn't set up in Slackware the same way it's set up in the *buntus. Generally with Slackware, most will just su to root and run any required commands that way. It is certainly possible to set it up to behave like Ubuntu, but it isn't set that way by default.
 
Old 08-12-2016, 04:25 PM   #11
Ayaskull
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Quote:
Originally Posted by bassmadrigal View Post
Check this post. It seems you might need to tweak your xorg config files for bumblebee.



Do you have sudo set up properly? It isn't set up in Slackware the same way it's set up in the *buntus. Generally with Slackware, most will just su to root and run any required commands that way. It is certainly possible to set it up to behave like Ubuntu, but it isn't set that way by default.
I've followed the instructions in the post and still I get the same error...
 
Old 08-12-2016, 05:13 PM   #12
bassmadrigal
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While it's normally not recommended, can you log into X as root and try it that way?
 
Old 08-12-2016, 06:27 PM   #13
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Quote:
Originally Posted by bassmadrigal View Post
While it's normally not recommended, can you log into X as root and try it that way?
Nope. I did startx as root, logged in and then tried the primusrun and optirun commands and I get the same errors.
 
Old 08-12-2016, 07:16 PM   #14
ReaperX7
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Try setting up your Intel chipset completely with an xorg.conf. Don't try automation with Optimus.

Are you also using the Nvidia driver or Nouveau?
 
Old 08-12-2016, 07:42 PM   #15
Ayaskull
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I'm using the nvidia driver. I think the automated bumblebee installer installed it.
Can I install nvidia prime instead of bumblebee (switching graphics by login out)? I know intel hd graphics alone are enough for most applications but I need nvidia to play my steam games.
 
  


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