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[Bug 1326322] [NEW] Progress bar shader fails to render with Qt 5.3

 

Public bug reported:

With Qt 5.3 (see https://launchpad.net/~canonical-
qt5-edgers/+archive/qt5-beta2 for instructions on how to upgrade) and
https://code.launchpad.net/~osomon/webbrowser-app/qt53-workaround-
QTBUG-39255/+merge/220985, webbrowser-app runs fine on devices, but the
progress bar embedded inside the address bar fails to render correctly.
All I’m seeing is a black rectangle that becomes progressively white as
the page is loading.

The underlying code uses a shader (see http://bazaar.launchpad.net
/~phablet-team/webbrowser-
app/trunk/view/head:/src/app/EmbeddedProgressBar.qml), and I’m not
seeing any errors in the application’s log.

** Affects: webbrowser-app
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1326322

Title:
  Progress bar shader fails to render with Qt 5.3

Status in Web Browser App:
  New

Bug description:
  With Qt 5.3 (see https://launchpad.net/~canonical-
  qt5-edgers/+archive/qt5-beta2 for instructions on how to upgrade) and
  https://code.launchpad.net/~osomon/webbrowser-app/qt53-workaround-
  QTBUG-39255/+merge/220985, webbrowser-app runs fine on devices, but
  the progress bar embedded inside the address bar fails to render
  correctly. All I’m seeing is a black rectangle that becomes
  progressively white as the page is loading.

  The underlying code uses a shader (see http://bazaar.launchpad.net
  /~phablet-team/webbrowser-
  app/trunk/view/head:/src/app/EmbeddedProgressBar.qml), and I’m not
  seeing any errors in the application’s log.

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