Right, Google did not yield any direct answers but a few pointers here and there. After messing up my rootfs a couple of times trying different things, I am back to square one. I have discovered that although the "debian" user is member of video and input groups, it only helps in terms of running ts_calibrate and ts_test programs, launching any qt 5.5 program with eglfs, just terminates with failure message that egl could not be initialized - there is no message about permissions or anything else (like running a system command without sudo, you get a command not found error)
Launching program with sudo actually runs the program but with various warnings about environment variables that need to be set in order for qt to know the physical screen size. logging in as debian and doing su, then launching program, everything works 100%, no errors, warnings or anything else. So in my limited knowledge of linux, i have come to the conclusion that all the problems above are due to permissions. 1. How can I determine where the permission failure is happening? 2. How would I grant the correct permissions for user "debian" to be able to run the qt program Any advice, pointers, thoughts would be greatly appreciated. Thanks Rob On Thursday, 6 August 2015 21:39:27 UTC+1, William Hermans wrote: > > The immediate thing to do, if not done already would be to google the > exact error message. This may, or may not give you an answer to your > problem. > > Indeed adding your user to a group in this case seems like the "real" way > to go. So preferable if you can nail down this issue. > > On Thu, Aug 6, 2015 at 1:18 PM, Moscowbob <mosc...@gmail.com <javascript:> > > wrote: > >> Thanks for the replies gents I have opted for Barry's suggestion and just >> added the user to input group for /dev/event1, for fb0, the user is member >> of viseo group by default. >> This seemed to work when testing with ts_calibrate and ts_test - works >> withou sudo but, when trying to rung a QT5 program with eglfs, it fails >> with cannot initialise. >> However, when running as sudo, the program works - I assume thewre are >> further permission problems somewhere so further insight or help will be >> greatly appreciated. >> >> Thabks >> >> Rob >> >> >> On Monday, 3 August 2015 21:19:32 UTC+1, Barry Day wrote: >>> >>> For /dev/fb0 use addgroup to add your user to the video group >>> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to beagleboard...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
