The problem is that the device permissions are ultimately controlled by the kernel module. That means that they'll be reset whenever the module is loaded or unloaded, which can happen whenever the 3D X server starts or someone logs in/out locally. I'm not sure if there is a way to reliably override that. The only reasonable approach seems to be to grant system-wide permission to the devices while restricting the 3D X server to vglusers only. That's a pretty common way of configuring VirtualGL, actually.
On 6/29/20 7:41 AM, Jason Edgecombe wrote: > Hello, > > Can you set the device permissions after boot in a systemd service, a > startup script, or an @boot cron job and have it work? > > Sincerely, > Jason > --------------------------------------------------------------------------- > Jason Edgecombe | Linux Administrator > UNC Charlotte | The William States Lee College of Engineering > 9201 University City Blvd. | Charlotte, NC 28223-0001 > Phone: 704-687-1943 <tel:704-687-1943> > [email protected] <mailto:[email protected]> | http://engr.uncc.edu | > Facebook > --------------------------------------------------------------------------- > If you are not the intended recipient of this transmission or a person > responsible for delivering it to the intended recipient, any > disclosure, copying, distribution, or other use of any of the > information in this transmission is strictly prohibited. If you have > received this transmission in error, please notify me immediately by > reply e-mail or by telephone at > 704-687-1943 <tel:704-687-1943>. Thank you. > > > On Fri, Jun 26, 2020 at 12:11 PM DRC <[email protected] > <mailto:[email protected]>> wrote: > > Sorry for the delay. I looked into this, and unfortunately, I > don't see > a way to accomplish what you want to accomplish. It is possible for > vglserver_config to be more selective about DRI devices, but with > nVidia > devices, the permissions are assigned based on rules that VirtualGL > specifies in /etc/modprobe.d/virtualgl.conf, using nVidia-specific > driver directives. Those driver directives don't appear to allow > permissions to be set per-device. > > On 12/9/19 7:02 AM, trumee wrote: > > Sorry, I wasn't clear before. I have two devices and thus have > /dev/nvidia0 and /dev/nvidia1. I want vglserver_config to put > /dev/nvidia0 in vglserver group but leave /dev/nvidia1 alone. > > > > -- > You received this message because you are subscribed to the Google > Groups "VirtualGL User Discussion/Support" group. > To unsubscribe from this group and stop receiving emails from it, > send an email to [email protected] > <mailto:virtualgl-users%[email protected]>. > To view this discussion on the web visit > > https://groups.google.com/d/msgid/virtualgl-users/ed4f6846-665a-ffb8-56d2-da8c753b0208%40virtualgl.org. > > -- > You received this message because you are subscribed to the Google > Groups "VirtualGL User Discussion/Support" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/virtualgl-users/CAAR6MGCbFwUeSmX%3D%2BKPC0jCrH368qJPTMMhGtz9FajchJ%2BcGmg%40mail.gmail.com > <https://groups.google.com/d/msgid/virtualgl-users/CAAR6MGCbFwUeSmX%3D%2BKPC0jCrH368qJPTMMhGtz9FajchJ%2BcGmg%40mail.gmail.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "VirtualGL User Discussion/Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/virtualgl-users/d34c63f0-e054-d897-ee4b-cde2be01a3a6%40virtualgl.org.
