ubuntu-sdk-bugs team mailing list archive

[Andrew Hayzen <1627105@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

I'm not sure this is specifically the ubuntu-ui-toolkit, but if I use a
Label vs Text seems to affect the number of windows I can open so
thought I'd check here first.


What happened:
1) Branch the demo-app [0]
2) Launch the app
3) Notice a window appears with a number
4) Click anywhere in the window to launch another window with an incremented number
5) Keep clicking on the first window, generating a large number of windows
6) Notice at a certain number as the window is spawning all the other windows close.

For me this happens at different times depending on the environment/app,
if I change the Label inside the Window to Text it happens later, or if
I switch from the LXD/LXC based SDK to running $ qmlscene directly on
the host this also increases the number of windows I can generate.

------|-Label-|-Text-|
LXD---|---61--|--81--|
Host--|--125--|--143-|

What I expected to happen:
For me to be able to keep generating a number of windows without other windows being closed.


Note: When I found this issue in a more complex app, the lowest limit was 14 not 61 windows, so the complexity of the app may affect this.

0 - https://code.launchpad.net/~ahayzen/+junk/multi-window-issue


Environment:
Unity7, 16.04, with stable overlay PPA.

$ apt-cache policy qtdeclarative5-ubuntu-ui-toolkit-plugin ubuntu-sdk-ide
qtdeclarative5-ubuntu-ui-toolkit-plugin:
  Installed: 1.3.2085+16.04.20160916
  Candidate: 1.3.2085+16.04.20160916
  Version table:
 *** 1.3.2085+16.04.20160916 100
        100 /var/lib/dpkg/status
     1.3.2085+16.04.20160915 500
        500 http://ppa.launchpad.net/ci-train-ppa-service/stable-phone-overlay/ubuntu xenial/main amd64 Packages
     1.3.1918+16.04.20160404-0ubuntu1 500
        500 http://gb.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
ubuntu-sdk-ide:
  Installed: 4.1.0~161+201609151241~ubuntu16.04.1
  Candidate: 4.1.0~161+201609151241~ubuntu16.04.1
  Version table:
 *** 4.1.0~161+201609151241~ubuntu16.04.1 500
        500 http://ppa.launchpad.net/ubuntu-sdk-team/ppa/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

$ lsb_release -rd
Description:	Ubuntu 16.04.1 LTS
Release:	16.04

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09

** Affects: ubuntu-ui-toolkit (Ubuntu)
     Importance: Undecided
         Status: New

-- 
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https://bugs.launchpad.net/bugs/1627105

Title:
  Opening a certain number of windows closes already open windows

Status in ubuntu-ui-toolkit package in Ubuntu:
  New

Bug description:
  I'm not sure this is specifically the ubuntu-ui-toolkit, but if I use
  a Label vs Text seems to affect the number of windows I can open so
  thought I'd check here first.

  
  What happened:
  1) Branch the demo-app [0]
  2) Launch the app
  3) Notice a window appears with a number
  4) Click anywhere in the window to launch another window with an incremented number
  5) Keep clicking on the first window, generating a large number of windows
  6) Notice at a certain number as the window is spawning all the other windows close.

  For me this happens at different times depending on the
  environment/app, if I change the Label inside the Window to Text it
  happens later, or if I switch from the LXD/LXC based SDK to running $
  qmlscene directly on the host this also increases the number of
  windows I can generate.

  ------|-Label-|-Text-|
  LXD---|---61--|--81--|
  Host--|--125--|--143-|

  What I expected to happen:
  For me to be able to keep generating a number of windows without other windows being closed.

  
  Note: When I found this issue in a more complex app, the lowest limit was 14 not 61 windows, so the complexity of the app may affect this.

  0 - https://code.launchpad.net/~ahayzen/+junk/multi-window-issue

  
  Environment:
  Unity7, 16.04, with stable overlay PPA.

  $ apt-cache policy qtdeclarative5-ubuntu-ui-toolkit-plugin ubuntu-sdk-ide
  qtdeclarative5-ubuntu-ui-toolkit-plugin:
    Installed: 1.3.2085+16.04.20160916
    Candidate: 1.3.2085+16.04.20160916
    Version table:
   *** 1.3.2085+16.04.20160916 100
          100 /var/lib/dpkg/status
       1.3.2085+16.04.20160915 500
          500 http://ppa.launchpad.net/ci-train-ppa-service/stable-phone-overlay/ubuntu xenial/main amd64 Packages
       1.3.1918+16.04.20160404-0ubuntu1 500
          500 http://gb.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
  ubuntu-sdk-ide:
    Installed: 4.1.0~161+201609151241~ubuntu16.04.1
    Candidate: 4.1.0~161+201609151241~ubuntu16.04.1
    Version table:
   *** 4.1.0~161+201609151241~ubuntu16.04.1 500
          500 http://ppa.launchpad.net/ubuntu-sdk-team/ppa/ubuntu xenial/main amd64 Packages
          100 /var/lib/dpkg/status

  $ lsb_release -rd
  Description:	Ubuntu 16.04.1 LTS
  Release:	16.04

  $ lspci | grep VGA
  00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09

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