[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[kevin gunn]

** Changed in: canonical-devices-system-image
Milestone: u8c-1 => p2

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Michał Sawicz]

** No longer affects: qtubuntu

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[kevin gunn]

** Tags added: unity8-desktop

** Tags removed: unity8-desktop
** Tags added: unity8-session-snap

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Gerry Boland]

> Also very important that those apps (toolkits) choose native Mir over 
> X when both are available.
Qt isn't designed to make the choice itself, it expects to be told if either X 
or Mir should be used.

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Daniel van Vugt]

** Changed in: canonical-devices-system-image
Milestone: p2 => u8c-1

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Launchpad Bug Tracker]

** Branch linked: lp:~ci-train-bot/webbrowser-app/webbrowser-app-ubuntu-
zesty-2504

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Launchpad Bug Tracker]

** Branch linked: lp:webbrowser-app/staging

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Michael Terry]

They should add mir, yeah.  No need to replace unity8, necessarily [1].

[1] For the moment, plugging unity8 will make you uninstallable.  This
is to prevent widespread use of that interface before we finish it.  The
default set of core apps have an exception to this, though.

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Olivier Tilloy]

Does that mean that apps that plug to the "unity8" iface should be
updated to plug to "mir" now?

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Michael Terry]

Agreed.  I was just trying to highlight that an app that used to work as
Mir might now be run under XMir because we switched which interface we
look at.

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Daniel van Vugt]

Sure, it's important to offer both X and Mir sockets to all apps.

Also very important that those apps (toolkits) choose native Mir over X
when both are available.

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Michael Terry]

Daniel, that may be because now we choose whether to use xmir or not
based on the presence of the 'mir' interface (used to be the 'unity8'
interface).  Not all apps may plug into that interface.

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Daniel van Vugt]

Further to comment #12, I've noticed in a few other bug reports people
are experiencing rendering glitches in Qt apps that should only happen
with Xmir. So we seem to have a problem with our own Qt apps incorrectly
choosing X(mir) when native Mir is available and should be used instead.

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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Re: [Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Andy Bleaden]

Seemed to have been fixed with develop rc_proposed but then the wifi
broke!

On 23 February 2017 at 15:53, Michael Terry 
wrote:

> Is this still happening?
>
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> Title:
>   [regression] Some apps fail to start with [QPA]
>   UbuntuClientIntegration: connection to Mir server failed.
>
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  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Michael Terry]

Is this still happening?

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  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Ted Gould]

The log file makes this look like an app that is exporting the unity7
interface as well as the unity8 one. But the snapd in zesty doesn't have
a unity8 interface. So we're starting it as a unity7 app. It is not
realizing this and trying to connect to Mir, even after we've setup XMir
for it.

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Daniel van Vugt]

I understand. Unfortunately we're hitting new launch failure bugs every
few days now. So the launch failure one logged days ago might not be the
same bug experienced today.

Regardless of bug status we just need to get the code back to a semi-
working state where apps will actually run, and then we can clarify the
bugs.

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Title:
  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Michael Terry]

This is not the original issue, but yesterday I switched the unity8 snap
to use a different, more standard path (/run/user/xxx/mir_socket) for
the socket.

So if testing against the u8 snap, please re-create your app snaps to
pull down the latest version of the desktop-launch script which will
point your app at the new, correct socket location.  Again, this isn't
the same issue as OP, but I didn't want this new issue to confuse your
testing of this bug.

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  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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[Bug 1662145] Re: [regression] Some apps fail to start with [QPA] UbuntuClientIntegration: connection to Mir server failed.

[Daniel van Vugt]

** Description changed:

  Zesty
  unity8-session  16.04   396   canonical  
devmode
  
  Test Case
  1. Open the app drawer
  2. Launch an app (eg calculator)
  
  Expected result
  It starts successfully and the app works as expected
  
  Actual Result
  It launches, the loading screen then a black screen is shown for a sort 
moment, then the window closes.
  
  They all report:
  
  >>>
  Loading module: 'libubuntu_application_api_desktop_mirclient.so.3.0.0'
  [QPA] UbuntuClientIntegration: connection to Mir server failed.
  
- Mir returned: "Failed to connect to server socket: No such file or directory"
+ Mir returned: "Failed to connect to server socket: Permission denied"
  <<<
- 
- Examples:
- 
- $ ubuntu-calculator-app 
- Loading module: 'libubuntu_application_api_desktop_mirclient.so.3.0.0'
- [QPA] UbuntuClientIntegration: connection to Mir server failed.
- 
- Mir returned: "Failed to connect to server socket: No such file or
- directory"
- 
- $ mirrun webbrowser-app
- Loading module: 'libubuntu_application_api_desktop_mirclient.so.3.0.0'
- [QPA] UbuntuClientIntegration: connection to Mir server failed.
- 
- Mir returned: "Failed to connect: not accepted by server"
- 
- $ ubuntu-calendar-app 
- Loading module: 'libubuntu_application_api_desktop_mirclient.so.3.0.0'
- [QPA] UbuntuClientIntegration: connection to Mir server failed.
- 
- Mir returned: "Failed to connect to server socket: No such file or
- directory"

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  [regression] Some apps fail to start with [QPA]
  UbuntuClientIntegration: connection to Mir server failed.

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