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leon-anavi | morning | 07:03 |
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chbae | Does anyone have experience to use 2 displays in RPI4? I would like to test 2 different QT applications on different displays on RPI4. | 10:13 |
chbae | I tried to refer https://www.qt.io/blog/2016/09/19/qt-graphics-with-multiple-displays-on-embedded-linux but it seems not work. both of 2 displays on RPI4 uses /dev/dri/card1 | 10:14 |
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smurray | chbae: dl9pf and I tried it briefly with a Halibut at ELCE in Lyon, but didn't have success. That was with weston + ivi-shell + AGL windowmanager, but the issue seemed on the f/w side. I've done it on H3+KF, so the stack should work | 12:55 |
chbae | smurray Thank you for the information. Could you share the json files for QT_QPA_EGLFS_KMS_CONFIG if you still have it? | 12:57 |
daniels | chbae: Weston is not QtCompositor | 12:57 |
daniels | the config given in that blogpost seems like it should work fine - there's no issue with both displays being part of the same KMS device, because KMS allows you to enumerate and control displays separately | 12:58 |
smurray | chbae: what daniels said, we don't touch those usually. The only qtcompositor demo in the AGL tree is a cluster demo Fujitsu contributed that's not tested too often | 12:59 |
chbae | > chbae: Weston is not QtCompositorAh right | 13:00 |
chbae | Got it. | 13:02 |
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rpcme | smurray thank you so much for the feedback. Let me get on with the configuration and see how it goes. | 13:09 |
smurray | rpcme: no worries, good luck | 13:17 |
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rpcme | smurray so how do other apps, like nagios and docker, get to add userids without going through this? | 13:47 |
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rpcme | meaning, they don't have to override passwd/group | 13:47 |
smurray | rpcme: inside a container, you mean? | 13:47 |
rpcme | no in their recipes | 13:48 |
rpcme | they just use useradd normally, and it works for them. | 13:48 |
rpcme | for example, the recipe I have is doing nothing different than external/meta-virtualization/recipes-extended/nagios/nagios-common.inc | 13:55 |
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rpcme | okay I removed --system - and get: greengrass was skipped: greengrass - greengrass: normal username ggc_user does not have a static ID defined. Add ggc_user to one of these files: /home/ubuntu/agl-jellyfish-9.99.3/meta-agl/meta-agl-profile-core/files/passwd | 14:28 |
rpcme | so how are people who are creating custom apps running in a specific user context supposed to do this? | 14:29 |
rpcme | Like, if I'm writing my custom app via my custom layer, and I need to create a user id, then basically everyone runs into this? | 14:29 |
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rpcme | ok now I understand what's going on. I downloaded the src package so I didn't know these passwd/group files were actually committed to git! that is why I had such a disconnect | 15:27 |
rpcme | I thought the packages were just adding to this file | 15:28 |
rpcme | omg manually adding the user and group actually worked ... this is good but horrible at the same time | 15:32 |
rpcme | OK, I responded to the customer on how to proceed. I think this is going to create customer friction and requires documentation. If I can find a clear and repeatable path, I am happy to contribute the documentation, but these files are definitely not something we are committing to our layer. https://github.com/aws/meta-aws/issues/75 | 15:43 |
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