[Touch-packages] [Bug 1960947] Re: Graphical issues for GtKGL in software rendering

2022-02-16 Thread J-P Nurmi
I can confirm that libgtk-3-0 3.24.20-0ubuntu1.1 from focal-proposed
fixes the rendering issue.

I have tested with:

1) the attached minimal test case:

gcc -o testcase testcase.c `pkg-config --cflags --libs gtk+-3.0`
./testcase

2) a full-blown flutter app:

snap install --classic flutter
flutter config --enable-linux-desktop
flutter create test_app
cd test_app
flutter run


** Tags removed: verification-needed verification-needed-focal
** Tags added: verification-done-focal

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https://bugs.launchpad.net/bugs/1960947

Title:
  Graphical issues for GtKGL in software rendering

Status in gtk+3.0 package in Ubuntu:
  Fix Released
Status in gtk+3.0 source package in Focal:
  Fix Committed

Bug description:
  * Issue

  GTK applications using GL graphic show corruption problems under
  software rendering

  
  * Test case

  1. install gtk-3-examples
  2. $ LIBGL_ALWAYS_SOFTWARE=1 gtk3-demo
  3. select the gl example, it should render without issues

  * Regression potentiel

  The change is in the GL backend so check for rendering issues in GTK
  softwares using GL, including flutter applications

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1960947] Re: Graphical issues for GtKGL in software rendering

2022-02-16 Thread J-P Nurmi
Hi all. The conditions for reproducing the issue: CSD + OpenGL + swrast.

Notice that the GTK GL example doesn't use CSD i.e. it doesn't set a
custom GtkWindow titlebar. I have attached a small test case that
reproduces the issue.

** Attachment added: "testcase.c"
   
https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1960947/+attachment/5561410/+files/testcase.c

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to gtk+3.0 in Ubuntu.
https://bugs.launchpad.net/bugs/1960947

Title:
  Graphical issues for GtKGL in software rendering

Status in gtk+3.0 package in Ubuntu:
  Fix Released
Status in gtk+3.0 source package in Focal:
  Fix Committed

Bug description:
  * Issue

  GTK applications using GL graphic show corruption problems under
  software rendering

  
  * Test case

  1. install gtk-3-examples
  2. $ LIBGL_ALWAYS_SOFTWARE=1 gtk3-demo
  3. select the gl example, it should render without issues

  * Regression potentiel

  The change is in the GL backend so check for rendering issues in GTK
  softwares using GL, including flutter applications

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1960947/+subscriptions


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