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
>> >
>> > --
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>> >
>> >
>>
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>
>
> 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
>
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