ville
May 4, 2017, 10:03am
1
Hi,
I’m trying to get a snap with a simple OpenGL app (glxgears) to run on Core in Joule with mir-kiosk and apps.
Any tips appreciated.
parts have:
and the wrapper is simply:
#!/bin/bash
echo "running glxgears"
export LIBGL_DRIVERS_PATH=$SNAP/usr/lib/x86_64-linux-gnu/dri
exec $SNAP/usr/bin/glxgears
On the Joule target side from /var/log/syslog
Jan 13 04:15:13 localhost snap[11128]: running glxgears
Jan 13 04:15:13 localhost snap[11128]: Error: couldn't open display (null)
I also checked this https://bugs.launchpad.net/snappy/+bug/1584178
ogra
May 4, 2017, 10:33am
2
dont you also need to have libgl1-mesa-glx in the stage-packages for glx ?
ville
May 4, 2017, 11:44am
3
Thanks. Tested but it fails the same way also with
ogra
May 4, 2017, 11:47am
4
you might need to add $SNAP/usr/lib/x86_64-linux-gnu/mesa to your LD_LIBRABRY_PATH with your wrapper … that is where it ships libGL.so.1
also, since you didnt post the whole snapcraft.yaml i assume you have the opengl plug enabled there ?
ville
May 4, 2017, 11:51am
5
Thanks, really appreciate your help. opengl plug is there.
ville
May 5, 2017, 8:37am
6
Adding $SNAP/usr/lib/x86_64-linux-gnu/mesa to LD_LIBRABRY_PATH did not solve the issue./var/log/syslog shows:
May 5 11:29:37 localhost snap[12130]: running glxgears
May 5 11:29:37 localhost snap[12130]: MIR_CLIENT_PLATFORM_PATH=/snap/mir-kiosk-apps/x1/mir-libs/x86_64-linux-gnu/mir/client-platform
May 5 11:29:37 localhost snap[12130]: SNAP_USER_COMMON=/root/snap/mir-kiosk-apps/common
May 5 11:29:37 localhost snap[12130]: SNAP_REEXEC=
May 5 11:29:37 localhost snap[12130]: LIBGL_DRIVERS_PATH=/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu/dri
May 5 11:29:37 localhost snap[12130]: LD_LIBRARY_PATH=/snap/mir-kiosk-apps/x1/mir-libs/x86_64-linux-gnu:/var/lib/snapd/lib/gl:/var/lib/snapd/void:/snap/mir-kiosk-apps/x1/usr/lib:/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu:/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu/mesa:/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu/mesa-egl:/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu/mesa:/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu/mesa-egl::/snap/mir-kiosk-apps/x1/lib:/snap/mir-kiosk-apps/x1/usr/lib:/snap/mir-kiosk-apps/x1/lib/x86_64-linux-gnu:/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu:/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu/mesa:/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu/mesa-egl:/snap/mir-kiosk-apps/x1/usr/lib/x86_64-linux-gnu/dri
May 5 11:29:37 localhost snap[12130]: SNAP_LIBRARY_PATH=/var/lib/snapd/lib/gl:/var/lib/snapd/void
May 5 11:29:37 localhost snap[12130]: SNAP_COMMON=/var/snap/mir-kiosk-apps/common
May 5 11:29:37 localhost snap[12130]: SNAP_USER_DATA=/root/snap/mir-kiosk-apps/x1
May 5 11:29:37 localhost snap[12130]: SNAP_DATA=/var/snap/mir-kiosk-apps/x1
May 5 11:29:37 localhost snap[12130]: PATH=/snap/mir-kiosk-apps/x1/usr/sbin:/snap/mir-kiosk-apps/x1/usr/bin:/snap/mir-kiosk-apps/x1/sbin:/snap/mir-kiosk-apps/x1/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
May 5 11:29:37 localhost snap[12130]: PWD=/var/snap/mir-kiosk-apps/x1
May 5 11:29:37 localhost snap[12130]: XKB_CONFIG_ROOT=/snap/mir-kiosk-apps/x1/usr/share/X11/xkb
May 5 11:29:37 localhost snap[12130]: MIR_SOCKET=/run/mir_socket
May 5 11:29:37 localhost snap[12130]: LANG=C.UTF-8
May 5 11:29:37 localhost snap[12130]: SNAP_REVISION=x1
May 5 11:29:37 localhost snap[12130]: SHLVL=1
May 5 11:29:37 localhost snap[12130]: HOME=/root/snap/mir-kiosk-apps/x1
May 5 11:29:37 localhost snap[12130]: SNAP_NAME=mir-kiosk-apps
May 5 11:29:37 localhost snap[12130]: SNAP_ARCH=amd64
May 5 11:29:37 localhost snap[12130]: SNAP_VERSION=0.1
May 5 11:29:37 localhost snap[12130]: XDG_RUNTIME_DIR=/run/user/0/snap.mir-kiosk-apps
May 5 11:29:37 localhost snap[12130]: SNAP=/snap/mir-kiosk-apps/x1
May 5 11:29:37 localhost snap[12130]: _=/usr/bin/env
May 5 11:29:37 localhost snap[12130]: Error: couldn't open display (null)
I also checked the environment for missing pieces with https://raw.githubusercontent.com/ubuntu/snapcraft-desktop-helpers/master/common/desktop-exports but to no avail.
I shared my simple OpenGL test on Joule at https://git.launchpad.net/opengl-test with my test_joule script
In general, I’m just interested in any simple OpenGL snap to render graphics on Ubuntu Core with Joule so if you have ideas, please share.
ville
May 5, 2017, 8:39am
7
With above:
vilvo@localhost:~$ snap list
Name Version Rev Developer Notes
bluez 5.44-1 65 canonical -
classic 16.04 17 canonical devmode
core 16-2 1689 canonical -
joule 16.04-0.8+3 4 canonical -
joule-linux 4.4.0-1000.0+joule21-6 8 canonical -
mir-kiosk 1.2.0 30 canonical -
mir-kiosk-apps 0.1 x1 -
mir-libs 0.26.1 25 canonical -
pulseaudio 8.0-3 9 canonical -
snapweb 0.26.1 207 canonical -
and interfaces:
vilvo@localhost:~$ snap interfaces
Slot Plug
bluez:service bluez:client
:account-control -
:alsa -
:autopilot-introspection -
:bluetooth-control -
:browser-support -
:camera -
:classic-support -
:core-support core:core-support-plug
:dcdbas-control -
:docker-support -
:firewall-control -
:framebuffer -
:fuse-support -
:hardware-observe -
:home pulseaudio
:io-ports-control -
:joystick -
:kernel-module-control -
:locale-control -
:log-observe -
:lxd-support -
:mount-observe -
:network mir-kiosk-apps,pulseaudio,snapweb
:network-bind snapweb
:network-control -
:network-observe -
:network-setup-control -
:network-setup-observe -
:opengl mir-kiosk,mir-kiosk-apps
:openvswitch-support -
:physical-memory-control -
:physical-memory-observe -
:ppp -
:process-control -
:raw-usb -
:removable-media -
:shutdown -
:snapd-control snapweb
:system-observe -
:system-trace -
:time-control -
:timeserver-control snapweb
:timezone-control snapweb
:tpm -
:uhid bluez
joule:alsa -
joule:gpio-led-0 -
joule:gpio-led-1 -
joule:gpio-led-2 -
joule:gpio-led-3 -
joule:i2c-0 -
joule:i2c-1 -
joule:i2c-10 -
joule:i2c-11 -
joule:i2c-2 -
joule:i2c-3 -
joule:i2c-4 -
joule:i2c-5 -
joule:i2c-6 -
joule:i2c-7 -
joule:i2c-8 -
joule:i2c-9 -
joule:serial-usb -
mir-kiosk:mir mir-kiosk-apps
mir-libs:mir-libs mir-kiosk,mir-kiosk-apps
pulseaudio:service pulseaudio:client
- bluez:bluetooth-control
- bluez:network-control
ogra
May 5, 2017, 8:47am
8
since you are using the mir-kiosk-apps package as a blueprint for your GL testing, would you mind trying the package from the store to be sure the whole mir setup runs at all (afaik there are also GL based demos like the photoviewer included).
it could well be that direct GL stuff does not work in this constellation (i.e. not going through the Qt/QML interface).
ville
May 5, 2017, 9:09am
9
photoviewer in mir-kiosk-apps from edge works but when I build the snap from Alberto Aguirre launchpad repository (baseline of my fork), the snap fails to build with photoviewer. That’s why I removed it - other demos run with self-built snap, though.
