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elParaguayo / RPi-InfoScreen-Kivy

Improved version of info screen using Kivy. NOTE: This project is no longer actively maintained.
GNU General Public License v3.0
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Photoalbum crashes #68

Open elParaguayo opened 8 years ago

elParaguayo commented 8 years ago

Reported on forum: https://www.raspberrypi.org/forums/viewtopic.php?f=41&t=121392&p=959154#p956896

kivitalo commented 8 years ago

Hi, I was able to make some progress in this. If you increase the gpu memory allocated for the Raspberry PI the photoalbum is able to show the pictures. I still see some glError messages in the log but the pictures are shown correctly. I will do some more testing with larger amount of pictures so I can see if this is really working and if there are any stability issues.

You can check the available memory for arm and gpu with the vcgencmd get_mem arm && vcgencmd get_mem gpu command in the commandline. I had in my Raspberry Pi2 by default 64M allocated for the GPU so I increased that to 512M. This can be done in the /boot/config.txt file by adding/modifing the gpu_mem keyword. In my case I added gpu_mem=512 to the end of the /boot/config.txt file. Depending on the Raspberry Pi model the value might different. I will get back once I have more results.

kivitalo commented 8 years ago

Those glError messages are coming from the ScreenManager Transition effects. Some of the images are not show at all. If I set NoTransition images are show correctly and no glErrors. I am now testing with lot of images to see if there are some issues still. I don't know what would be the best way to solve this. Maybe first load to memory and resize to smaller ( Raspberry screen sized ) image and then show with Transitions. Also I don't know if there are any settings in the Kivy side related to OpenGL and transitions.

elParaguayo commented 8 years ago

Thanks. It would be a shame to lose the transitions as otherwise a sudden change of image can be quite stark.

I know nothing about OpenGL I'm afraid.