SOLVED Raspberry Pi display not autostarting magic mirror
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My Raspberry Pi isn’t autostarting Magic Mirror with the 7 inch display connected. It autostarts correctly when connected to a monitor however. Is there something in the pm2 script that I have to do?
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@EphraimB I got it to work now. Thank you.
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@EphraimB when the 7 in is used open a terminal session ctrl-alt-t
and do
echo $DISPLAY
the line in package.json used for npm start, checks for DISPLAY set in the env, and if not uses :0
this is needed by x-windows
you might need to add
export DISPLAY=:?to the installers/mm.sh, before the npm start line
where ? is the display number used for the 7in
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/home/ephraimb/.pm2/logs/mm-error.log last 15 lines: 0|mm | [8401:0722/083808.387458:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization 0|mm | [8449:0722/083808.554707:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported. 0|mm | [8410:0722/083808.663954:ERROR:command_buffer_proxy_impl.cc(126)] ContextResult::kTransientFailure: Failed to send GpuControl.CreateCommandBuffer. 0|mm | /home/ephraimb/MagicMirror/node_modules/electron/dist/electron exited with signal SIGINT 0|mm | [8816:0722/083948.777454:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization 0|mm | [8860:0722/083948.944901:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported. 0|mm | [8825:0722/083949.008201:ERROR:command_buffer_proxy_impl.cc(126)] ContextResult::kTransientFailure: Failed to send GpuControl.CreateCommandBuffer. 0|mm | /home/ephraimb/MagicMirror/node_modules/electron/dist/electron exited with signal SIGINT 0|mm | [9539:0722/084423.587492:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization 0|mm | [9583:0722/084423.754159:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported. 0|mm | [9546:0722/084423.836816:ERROR:command_buffer_proxy_impl.cc(126)] ContextResult::kTransientFailure: Failed to send GpuControl.CreateCommandBuffer. 0|mm | /home/ephraimb/MagicMirror/node_modules/electron/dist/electron exited with signal SIGINT 0|mm | [1692:0722/090756.740898:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization 0|mm | [1734:0722/090757.250763:ERROR:gpu_memory_buffer_support_x11.cc(44)] dri3 extension not supported. 0|mm | /home/ephraimb/MagicMirror/node_modules/electron/dist/electron exited with signal SIGINT ^C ephraimb@raspberrypi:~ $ echo $DISPLAY ephraimb@raspberrypi:~ $ -
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@EphraimB I got it to work now. Thank you.
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@EphraimB what did u change?
