[BUG] No Interactions on Ubuntu 21.10

[eiswind]

Description
I installed projecteur-0.9.2_ubuntu-21.04-x86_64.deb, and updated my machine to 21.10.
w/o Projecteur running I can move the mouse and use the next/back button.
when I start projecteur, the highlight apperears when I press the button, but I cannot move it at all, also back/next shows no action.
Happens both on wayland and x11.

Desktop/Linux Environment (please complete the following information):

• Linux Distribution and Version: [e.g. Ubuntu 18.04]
  ubuntu 20.10

• Desktop/Window Manager and Version [e.g. GNOME 3.28, KDE 5.4...]

• gnome 40.4.0 on wayland or x11

• Did you built Projecteur yourself?: [y/n] no
  (If yes: Please run cmake for existing build directories, to ensure the generated version info is up to date)

• What is the output of projecteur -f ?: ...
  Projecteur 0.9.2

• git-branch: master

• git-hash: 82d9cfa

• compiler: GNU 10.2.1

• qt-version: (build: 5.15.2, runtime: 5.15.2)

• device-scan: (errors: 0, devices: 1 [readable: 1, writable: 1])

• What is the output of projecteur -d ?: ...
  Projecteur 0.9.2; device scan

• Found 1 supported devices. (1 readable, 1 writable)

+++ name: 'SPOTLIGHT'
userName: 'Logitech Spotlight (Bluetooth)'
vendorId: 046d
productId: b503
phys: 64:6e:e0:5a:27:e1
busType: Bluetooth
devices: /dev/input/event21, /dev/input/event20
readable: true
writable: true

[jahnf]

Hi @eiswind - thanks for the report - so you had Ubuntu 21.04 running with Projecteur and updated to 21.10 - did I get that right?

[eiswind]

Yes. I had some older version of projecteur on 21.04, updated to 0.9.2 when I found that it doesn't work anymore, but that did not help ... :) Let be know if I can be of any assistance.

[benneti]

same thing happening on NixOS with gnome 41.1 (on wayland) with 0.9.2 as well as #173 , x11 works though.

[jahnf]

Thank you for reporting. In the last few months I could not pay much attention to the project.
Question @benneti, did you test it with the latest version from the develop branch?
for #173 - on that feature branch unfortunately nothing has happened yet. 🙁

[benneti]

I just double checked with 21e5e60 and the cursor still does not move.
Maybe it is similar to this problem: ValveSoftware/gamescope#33 and https://bbs.archlinux.org/viewtopic.php?id=228032 .

If it is something like that, an option to keep the os device of the mouse and disable the virtual mouse would be a simple workaround.

EDIT: some more links:
ValveSoftware/steam-for-linux#4738 (comment)
https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/431

[benneti]

Ok so this might be relevant:
On starting projecteur, I see

KERNEL[4924.721502] add      /devices/virtual/input/input47/event23 (input)
KERNEL[4924.721527] add      /devices/virtual/input/input47/mouse3 (input)
UDEV  [4924.723389] add      /devices/virtual/input/input47/mouse3 (input)
UDEV  [4924.740647] add      /devices/virtual/input/input47/event23 (input)

in udevadm monitor
and then moving the pointer leads to

 event23  POINTER_MOTION          +5.041s	94.00/ 40.00 (+47.00/+20.00)
 event23  POINTER_MOTION          +5.057s	74.00/ 18.00 (+37.00/ +9.00)
 event23  POINTER_MOTION          +5.065s	52.00/ -4.00 (+26.00/ -2.00)
 event23  POINTER_MOTION          +5.073s	32.00/-24.00 (+16.00/-12.00)
 event23  POINTER_MOTION          +5.081s	18.00/-44.00 ( +9.00/-22.00)
 event23  POINTER_MOTION          +5.097s	 6.00/-66.00 ( +3.00/-33.00)
 event23  POINTER_MOTION          +5.105s	-4.00/-86.00 ( -2.00/-43.00)
 event23  POINTER_MOTION          +5.113s	-8.00/-106.00 ( -4.00/-53.00)
 event23  POINTER_MOTION          +5.121s	-14.00/-122.00 ( -7.00/-61.00)
 event23  POINTER_MOTION          +5.137s	-14.00/-138.00 ( -7.00/-69.00)
 event23  POINTER_MOTION          +5.145s	-20.00/-152.00 (-10.00/-76.00)
 event23  POINTER_MOTION          +5.153s	-22.00/-162.00 (-11.00/-81.00)
 event23  POINTER_MOTION          +5.161s	-26.00/-168.00 (-13.00/-84.00)

when running libinput debug-events but the pointer does not move.
However when quitting projecteur (the virtual inputs get removed) and cursor moves and I see

 event25  POINTER_MOTION          +0.106s	-142.00/136.00 (-71.00/+68.00)
 event25  POINTER_MOTION          +0.114s	-130.00/164.00 (-65.00/+82.00)
 event25  POINTER_MOTION          +0.122s	-110.00/180.00 (-55.00/+90.00)
 event25  POINTER_MOTION          +0.130s	-86.00/182.00 (-43.00/+91.00)
 event25  POINTER_MOTION          +0.146s	-64.00/176.00 (-32.00/+88.00)
 event25  POINTER_MOTION          +0.154s	-40.00/164.00 (-20.00/+82.00)
 event25  POINTER_MOTION          +0.162s	-18.00/152.00 ( -9.00/+76.00)
 event25  POINTER_MOTION          +0.170s	28.00/142.00 (+14.00/+71.00)
 event25  POINTER_MOTION          +0.186s	48.00/132.00 (+24.00/+66.00)
 event25  POINTER_MOTION          +0.194s	66.00/124.00 (+33.00/+62.00)
 event25  POINTER_MOTION          +0.202s	82.00/118.00 (+41.00/+59.00)
 event25  POINTER_MOTION          +0.210s	102.00/110.00 (+51.00/+55.00)
 event25  POINTER_MOTION          +0.226s	120.00/102.00 (+60.00/+51.00)
 event25  POINTER_MOTION          +0.234s	134.00/ 90.00 (+67.00/+45.00)

now comparing udevadm info /dev/input/event25

P: /devices/pci0000:00/0000:00:01.3/0000:02:00.0/usb1/1-10/1-10:1.1/0003:046D:C53E.0019/input/input40/event25
N: input/event25
L: 0
S: input/by-id/usb-Logitech_USB_Receiver-if01-event-mouse
S: input/by-path/pci-0000:02:00.0-usb-0:10:1.1-event-mouse
E: DEVPATH=/devices/pci0000:00/0000:00:01.3/0000:02:00.0/usb1/1-10/1-10:1.1/0003:046D:C53E.0019/input/input40/event25
E: DEVNAME=/dev/input/event25
E: MAJOR=13
E: MINOR=89
E: SUBSYSTEM=input
E: USEC_INITIALIZED=2206419819
E: PATH=/nix/store/5j8dddibhvd930gyp3pilif7lvqbia3k-udev-path/bin:/nix/store/5j8dddibhvd930gyp3pilif7lvqbia3k-udev-path/sbin
E: LIBINPUT_DEVICE_GROUP=3/46d/c53e:usb-0000:02:00.0-10
E: ID_INPUT=1
E: ID_INPUT_MOUSE=1
E: ID_VENDOR=Logitech
E: ID_VENDOR_ENC=Logitech
E: ID_VENDOR_ID=046d
E: ID_MODEL=USB_Receiver
E: ID_MODEL_ENC=USB\x20Receiver
E: ID_MODEL_ID=c53e
E: ID_REVISION=4101
E: ID_SERIAL=Logitech_USB_Receiver
E: ID_TYPE=hid
E: ID_BUS=usb
E: ID_USB_INTERFACES=:030101:030102:030000:
E: ID_USB_INTERFACE_NUM=01
E: ID_USB_DRIVER=usbhid
E: ID_PATH=pci-0000:02:00.0-usb-0:10:1.1
E: ID_PATH_TAG=pci-0000_02_00_0-usb-0_10_1_1
E: ID_FOR_SEAT=input-pci-0000_02_00_0-usb-0_10_1_1
E: DEVLINKS=/dev/input/by-id/usb-Logitech_USB_Receiver-if01-event-mouse /dev/input/by-path/pci-0000:02:00.0-usb-0:10:1.1-event-mouse
E: TAGS=:seat:uaccess:
E: CURRENT_TAGS=:seat:uaccess:

to udevadm info /dev/input/event23

P: /devices/virtual/input/input48/event23
N: input/event23
L: 0
E: DEVPATH=/devices/virtual/input/input48/event23
E: DEVNAME=/dev/input/event23
E: MAJOR=13
E: MINOR=87
E: SUBSYSTEM=input
E: USEC_INITIALIZED=5488016370
E: PATH=/nix/store/5j8dddibhvd930gyp3pilif7lvqbia3k-udev-path/bin:/nix/store/5j8dddibhvd930gyp3pilif7lvqbia3k-udev-path/sbin
E: LIBINPUT_DEVICE_GROUP=5/17ef/60db*
E: ID_INPUT=1
E: ID_INPUT_MOUSE=1
E: ID_INPUT_KEY=1
E: ID_INPUT_KEYBOARD=1
E: ID_SERIAL=noserial
E: TAGS=:power-switch:seat:uaccess:
E: CURRENT_TAGS=:power-switch:seat:uaccess:

I have no particular idea what could break it but for me only
the missing ID_TYPE=hid or the different TAGS would make sense
EDIT: ID_TYPE=hid does not help with the movement but at least I now have

Device:           Projecteur_input_device
Kernel:           /dev/input/event23
Group:            8
Seat:             seat0, default
Capabilities:     keyboard pointer 
Tap-to-click:     n/a
Tap-and-drag:     n/a
Tap drag lock:    n/a
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   button
Click methods:    none
Disable-w-typing: n/a
Accel profiles:   flat *adaptive
Rotation:         n/a

in libinput list-devices.

[markoott]

Any news at this point. Would love to use your tool but unfortunately it's not working (same as above) in ubuntu 21.10 :-/

[jahnf]

Yes, sorry I couldn't allocate time for Projecteur.

So it seems it is a two-folded problem.

• wayland
• Ubuntu 21.10 (and probably 22.04) even with X11

I will need to install 21.10 in a VM and do some issue tracking.
I will try to do that during next week.

A question for users on X11 on Ubuntu 21.10:

• Does it work if you start the program with --disable-uinput? (This will essentially also disable custom key mappings)

[benneti]

Ah thanks projecteur --disable-uinput works for me on wayland (with the normal circle pointer)!

[jahnf]

Ah thanks projecteur --disable-uinput works for me on wayland (with the normal circle pointer)!

Good to know, of course the nice feature of mapping custom inputs is disabled 😞 - so this is only kind of a workaround. Seems one issue is around the area of grabbing all the device input and feeding it (mapped) to a virtual uinput device. That definitely narrows down my issue tracking.

[benneti]

indeed, but it is far better than a pointer that does not move 😅

[jahnf]

Now that Ubuntu 22.04 is released I will check with that release and see if anything from earlier versions changed in regards to the uinput device handling.

Edit: @eiswind In case you updated already to 22.04 (I haven't yet) - is the issue the same on 22.04?

[jahnf]

It is definitely related on how to uinput and wayland on newer distribution releases. Sadly I do not have a quick fix or workaround at the moment. I need to see how other projects might solve this issue.

[utuser]

I know such time problems too well...... So thanks a million that the tool exists at all with such comprehensive functionality!

Yes, I can confirm that in a regular 22.04-setup (no vm, fresh install yesterday). On 18.04 it works out of the box with your binary. On 22.04 the above workaround is necessary. However, it is strange that everything worked during the very first start-up on 22.04. Then I switched to Win10 (dual boot machine), installed the respective app and configured the device. Back in 22.04 no movement anymore. The Pointer with all features is displayed though. Maybe this is a useful additional information or just coincidence?

[cuathro]

Thanks @jahnf for the wonderful work. Hopefully I can continue working on Projecteur, it would be great to have it running on Ubuntu 22.04 100%. I'm not a developer, but if I can collaborate with something, with testing or with any situation, I'm attentive. This is the only alternative to bring Logitech Spotlight to life on Linux-Ubuntu.

When executing: projecteur --disable-uinput the following error messages appear:

[2022-09-15T00:01:26.086][inf][default] Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
[2022-09-15T00:01:26.283][inf][projecteur.device] Virtual device initialization was skipped.
[2022-09-15T00:01:26.427][wrn][projecteur.mainapp] Qt 'xcb' platform and Wayland session detected.
[2022-09-15T00:01:26.492][inf][projecteur.device] Connected device: Logitech Spotlight (Bluetooth) (046d:b50e)
[2022-09-15T00:01:30.030][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:01:34.698][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:01:42.145][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:01:52.832][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:01:58.402][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:02:04.094][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:34:55.631][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:34:58.066][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:35:06.220][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:35:12.464][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:35:15.780][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:35:20.847][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:35:26.033][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:35:34.595][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:35:38.622][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:35:42.600][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.
[2022-09-15T00:35:47.949][err][projecteur.desktop] Screenshot via GNOME DBus interface failed.

SO: Ubuntu 22.04
Projecteur versión: 1.0-alpha.120 (for Ubuntu 21.10)