Feedback for pi 2

[maitredede]

Compiled successfully for a raspberry pi 2. I had to restart compilation from a clean ~/raspi directory.

Tried to run piomxtextures_pocplayer :

pi@raspberrypi:~ $ export QT_LOGGING_RULES=qt.qpa.*=true
pi@raspberrypi:~ $ ~/piomxtextures_pocplayer /opt/vc/src/hello_pi/hello_video/test.h264
qt.qpa.egldeviceintegration: EGL device integration plugin keys: ("eglfs_brcm", "eglfs_emu")
qt.qpa.egldeviceintegration: EGL device integration plugin keys (sorted): ("eglfs_brcm", "eglfs_emu")
qt.qpa.egldeviceintegration: Trying to load device EGL integration "eglfs_brcm"
qt.qpa.egldeviceintegration: Using EGL device integration "eglfs_brcm"
Unable to query physical screen size, defaulting to 100 dpi.
To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).
qt.qpa.input: libinput: input device 'Lite-On Technology USB Productivity Option Keyboard( has the hub in # 1 )', /dev/input/event1 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'Lite-On Technology USB Productivity Option Keyboard( has the hub in # 1 )', /dev/input/event1 is a keyboard
qt.qpa.input: libinput: input device 'Lite-On Technology USB Productivity Option Keyboard( has the hub in # 1 )', /dev/input/event2 is tagged by udev as: Keyboard
qt.qpa.input: libinput: input device 'Lite-On Technology USB Productivity Option Keyboard( has the hub in # 1 )', /dev/input/event2 is a keyboard
qt.qpa.input: libinput: input device ' USB OPTICAL MOUSE', /dev/input/event0 is tagged by udev as: Mouse
qt.qpa.input: libinput: input device ' USB OPTICAL MOUSE', /dev/input/event0 is a pointer caps
qt.qpa.input: X-less xkbcommon not available, not performing key mapping
15:35:00.840 INFO:       Showing media: /opt/vc/src/hello_pi/hello_video/test.h264.
15:35:00.842 VERB:       Can't find extension for .
15:35:00.842 VERB:       Can't find extension for image/svg+xml-compressed.
15:35:00.842 VERB:       Can't find extension for image/vnd.microsoft.icon.
15:35:00.843 VERB:       Unrecognized media: assuming video.
15:35:00.843 VERB:       Setting media source...
15:35:00.986 WARN:       Warning: "Jack server not found"
15:35:00.990 WARN:       Warning: "No decoder available for type 'video/x-h264, stream-format=(string)byte-stream'."
15:35:00.991 VERB:       Stopped signal received!
15:35:00.996 WARN:       Error: "Your GStreamer installation is missing a plug-in."

These warnings should be documented :

Unable to query physical screen size, defaulting to 100 dpi.
To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).

For the official touch screen (doc), solution may be to :

export QT_QPA_EGLFS_PHYSICAL_WIDTH=154
export QT_QPA_EGLFS_PHYSICAL_HEIGHT=86

For the others, I don't have any idea yet.

[maitredede]

Simple test of webengine :
On the pi 2, I have cross-compiled a simple app containing a main window with a WebEngineView.

[3652:3678:0705/160228.393352:ERROR:surface_factory_qt.cpp(68)] Failed to load /home/damien/raspi/sysroot/opt/vc/lib/libEGL.so.1: /home/damien/raspi/sysroot/opt/vc/lib/libEGL.so.1: cannot open shared object file:
No such file or directory
[3652:3678:0705/160228.988572:ERROR:gl_surface_qt.cpp(661)] Requested OpenGL implementation is not supported. Implementation: 0

I seams to try to load the libraries from the cross-compiled environment...

If I make symbolic links into recreated directory as the app wants, it works, and I have also mouse interaction. But no keyboard interaction. I will make a fresh raspbian lite install to see if it is not related to additionnal things I have made...

edit :
On the pi, I ran :

sudo mkdir -p <host_home>/raspi/sysroot/opt/vc/lib/
sudo ln -s /opt/vc/lib/libEGL.so <host_home>/raspi/sysroot/opt/vc/lib/libEGL.so.1
sudo ln -s /opt/vc/lib/libGLESv2.so <host_home>/raspi/sysroot/opt/vc/lib/libGLESv2.so.2

[maitredede]

Keyboard :
Inspired from : carlonluca/pot#54

export QT_QPA_EGLFS_NO_LIBINPUT=1

Keyboard is working, but I didn't figure yet how to change the default US layout. Some doc : here.

[zevero]

Wow! I am already waiting for months to get mouse interaction on qtwebengine ... Did you use the master or dev branch of this script? Did you compile for 5.8 or 5.9?
How is performance?
Does it work flawlessly?
I experienced for example when loading html5test.com that it loads fairly quickly, but at some time it reloads and stops at 70% (if you show the progress bar) not moving any further...

[maitredede]

I have compiled Qt 5.9, using the dev scripts, on a Ubuntu 16.04 x64 virtual machine, targeting a Pi 2. Performances look poor, but I don't know if it is the website I am viewing, the pi 2 or other things. I have navigated by clicking menus, and typed things on the keyboard to a contact form. I have also compiled modules qtspeech and qtgamepad. I will do more tests tomorrow, like performances, keyboard layout, video performances. I will also try to see if we can dual screen.

[maitredede]

For html5test, I score a 512/555. I ran the app 5 times, always displaying the result.
I have somme messages from the webbrowser :

js: The <keygen> element is deprecated and will be removed in M57, around March 2017. See https://www.chromestatus.com/features/5716060992962560 for more details.
js: The 'options' directive has been replaced with 'unsafe-inline' and 'unsafe-eval' source expressions for the 'script-src' and 'style-src' directives. Please use those directives instead, as 'options' has no effect.

[Kukkimonsuta]

I have pushed update to dev with hopefully working qtwebengine and maybe even keyboard without QT_QPA_EGLFS_NO_LIBINPUT. Issue with Failed to load ...libEGL.so.1... should be fixed without having to create symlinks.

I don't have time to verify whole build process again, but feel free to try. Note that there were changes (adding xkbcommon-dev as dependency) in qtbase, so full rebuild is required for that.

[Kukkimonsuta]

I have verified the 5.9.1 build on rpi 3:

• keyboard and mouse seem to work fine
• libEGL is loaded properly, but making some symlinks on rpi is still required, so readded to instructions
• HTTPS websites now work too
• html5test results in 512/555
• performance is not the best, but acceptable
• youtube works @ 480p; 720p/1080p lags. I believe the video is not using piomxtextures and likely not even gst-omx, but I don't have any more time to invest into it

All tested using the "minimal" example bundled with QT.

[thijstriemstra]

On the pi, I ran

Found this ticket with google search and a note to others using raspbian stretch

• rpi changed the .so names (see https://bugreports.qt.io/browse/QTBUG-62216)
• update the symlinks using these commands instead:

sudo ln -s /opt/vc/lib/libbrcmGLESv2.so /usr/lib/arm-linux-gnueabihf/libGLESv2.so.2.0.0
sudo ln -s /opt/vc/lib/libbrcmEGL.so /usr/lib/arm-linux-gnueabihf/libEGL.so.1.0.0