David you have an interesting problem. I'm not clear if you have one user using the machine at once or if several users have access to the machine. Assuming there is only one user at once, then I think you should investigate to see if udev is setting your /dev/nvidia* file permissions. If so a udev configuration change could be an answer.
I searched and found a thread with many different things to try relating to permissions of those files: http://www.nvnews.net/vbulletin/archive/index.php/t-89965.html Good luck. -Cam On Tue, May 24, 2011 at 4:16 PM, David E. Marshall <[email protected]> wrote: > I just need to start by saying thank you to the people who have made > suggestions. > > That would work however i don't think the user we would setup to run > pacasa can access the /home folder for the actual user who is logged > in. All home directories are nfs mounts to a FAST local server. The > department in question has 60 Linux workstations and 300 users. > (academic department with student users). > > So - i guess I just need to dig into what is going on with the two > files in /dev owned by the linux group video. > > crw-rw---- 1 root video 195, 0 May 19 14:08 nvidia0 > crw-rw---- 1 root video 195, 255 May 19 14:08 nvidiactl > > I just don't know what/how this set of files are created or defined. > If you know who I can ask a question about the linux x server please > let me know. > > Thanks > > Dave/ > > > On Mon, May 23, 2011 at 6:54 PM, Patrick Shanahan <[email protected]> > wrote: >> * David E. Marshall <[email protected]> [05-23-11 19:18]: >>> thanks for the ideas. >>> >>> I don't think this is a problem with the systems, or picasa for that >>> matter - but rather an issue how pacasa runs. We have 20 other >>> software that work OK... Mathematica, Matlab etc... All users belong >>> to the group "domain users". >>> >>> for instance this is a user home dir: >>> >>> drwx------ 49 dem1 domain users 4096 2011-05-20 15:07 dem1 >>> >>> My guess is that the user you are running as belongs to the "linux >>> video" group on your system. i do not know how to add a domain group >>> to the local video group... which I think will fix the problem. >>> >>> The fix suggested by the error pop up when you start pacasa >>> >>> "chmod 666 /dev/nvidia0 /dev/nvidia1": >>> >>> Works when run as root and lets the logged in user run pacasa - but a >>> simple log out and back in changes the >>> them back to 660. >>> >>> Thanks for the help thinking about my problem. >>> >>> Dave/ >>> >>> >>> On Mon, May 23, 2011 at 2:51 PM, Patrick Shanahan <[email protected]> >>> wrote: >>> > * David E. Marshall <[email protected]> [05-23-11 16:28]: >>> >> We find that two files in /dev: >>> >> >>> >> crw-rw---- 1 root video 195, 0 May 19 14:08 nvidia0 >>> >> crw-rw---- 1 root video 195, 255 May 19 14:08 nvidiactl >>> >> >>> >> are causing the picasa error: >>> > >>> > which you mentioned, but out of context :^) >>> > >>> > you *do* have a problem, >>> > ll /dev/nvid* >>> > crw-rw-rw- 1 root root 195, 0 May 23 09:22 /dev/nvidia0 >>> > crw-rw-rw- 1 root root 195, 255 May 23 09:22 /dev/nvidiactl >>> > >>> >> "/dev/nvidia0 pr /dev/nvidiact1 are not accessible. Picasa will crash >>> >> if these files are not accessible. To fix this, as root, please run: >>> >> chmod 666 /dev/nvidia0 /dev/nvidia1" >>> >> >>> >> If you su to root and make the change as suggested - picasa will start >>> >> and run without error. >>> >> >>> >> If you log out and back in (as the same or a different user) the >>> >> files revert to 660 and we get the above error when picasa starts. >>> >> >>> >> All the suggested fixes that I can find we are unable to do. Ether >>> >> because the suggested file we should modify is no-existent in suse >>> >> 11.4 or because the fix did not fix the problem. >>> > >>> > well, something is amiss. >>> > >>> > Log in as a user and w/o running anything, check the perms >>> > >>> > then run: >>> > sudo SuSEconfig >>> > >>> > this should set system file perms to the correct values. >>> > >>> > you have set system file perms to: easy >>> > chk: yast2 -> security and users -> security center and hardening >>> > >>> > past that, I can only thing of two possibilities: >>> > win domain problem >>> > system is rooted. >>> > >>> > if *all* of your system exhibit this behavour, I would believe it is a >>> > "win domain problem". >>> > >>> > FLASH; I changed perms on my system to match yours and ran picasa as a >>> > normal user w/o a problem. Something else is causing your problems >>> > besides the perms (in addition to). I would guess your problem lies in >>> > the "win domain" access. >>> > >>> >> Computer are part of a win domain - we use winbind to authenticate. If >>> >> I could figure out how to add a win domain group to the linux "video" >>> >> group I think that would fix the problem - but as yet I don't see >>> >> how... >>> > >>> > I know neither ??? >>> > >>> > If I can help further... I am around :^) >>> > >>> > -- >>> > (paka)Patrick Shanahan Plainfield, Indiana, USA HOG # US1244711 >>> > http://wahoo.no-ip.org Photo Album: http://wahoo.no-ip.org/gallery2 >>> > http://en.opensuse.org openSUSE Community Member >>> > Registered Linux User #207535 @ http://counter.li.org >>> > >>> > -- >>> > You received this message because you are subscribed to the Google Groups >>> > "Google-Labs-Picasa-for-Linux" group. >>> > To post to this group, send email to >>> > [email protected]. >>> > To unsubscribe from this group, send email to >>> > [email protected]. >>> > For more options, visit this group at >>> > http://groups.google.com/group/google-labs-picasa-for-linux?hl=en. >>> > >>> > >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Google-Labs-Picasa-for-Linux" group. >>> To post to this group, send email to >>> [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit this group at >>> http://groups.google.com/group/google-labs-picasa-for-linux?hl=en. >> >> >> He does belong to the group "video". >> >> Have you considered "ssh -Y" and running picasa remotely. This way you >> could always run as the same user, or as a user who belongs to group >> "video". >> -- >> (paka)Patrick Shanahan Plainfield, Indiana, USA HOG # US1244711 >> http://wahoo.no-ip.org Photo Album: http://wahoo.no-ip.org/gallery2 >> http://en.opensuse.org openSUSE Community Member >> Registered Linux User #207535 @ http://counter.li.org >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google-Labs-Picasa-for-Linux" group. >> To post to this group, send email to >> [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/google-labs-picasa-for-linux?hl=en. >> >> > > -- > You received this message because you are subscribed to the Google Groups > "Google-Labs-Picasa-for-Linux" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-labs-picasa-for-linux?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google-Labs-Picasa-for-Linux" group. 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