IRC logs for #automotive for Thursday, 2020-09-17

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chbaeDoes 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
chbaeI 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/card110:14
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smurraychbae: 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 work12:55
chbaesmurray Thank you for the information. Could you share the json files for QT_QPA_EGLFS_KMS_CONFIG if you still have it?12:57
danielschbae: Weston is not QtCompositor12:57
danielsthe 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 separately12:58
smurraychbae: 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 often12:59
chbae> chbae: Weston is not QtCompositorAh right13:00
chbaeGot it.13:02
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rpcmesmurray thank you so much for the feedback.  Let me get on with the configuration and see how it goes.13:09
smurrayrpcme: no worries, good luck13:17
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rpcmesmurray so how do other apps, like nagios and docker, get to add userids without going through this?13:47
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rpcmemeaning, they don't have to override passwd/group13:47
smurrayrpcme: inside a container, you mean?13:47
rpcmeno in their recipes13:48
rpcmethey just use useradd normally, and it works for them.13:48
rpcmefor example, the recipe I have is doing nothing different than external/meta-virtualization/recipes-extended/nagios/nagios-common.inc13:55
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rpcmeokay 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/passwd14:28
rpcmeso how are people who are creating custom apps running in a specific user context supposed to do this?14:29
rpcmeLike, 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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rpcmeok 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 disconnect15:27
rpcmeI thought the packages were just adding to this file15:28
rpcmeomg manually adding the user and group actually worked ... this is good but horrible at the same time15:32
rpcmeOK, 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/7515:43
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