Changeset 44ce58 for src/UIElements/Qt4/QtUIFactory.cpp

Timestamp:

Nov 12, 2023, 6:08:27 PM (2 years ago)

Author:

Frederik Heber <frederik.heber@…>

Branches:

Candidate_v1.7.0, stable

Children:

6dde30

Parents:

9a992a

Message:

FIX: solves xcb issues under ubuntu 22.04.

• under Ubuntu 22.04 (with molecuilder compiled under ubuntu 22.04), I've encountered the following issues:
  • missing swrast and fbColor: required mesa-utils package
  • [xcb] ... missing XInitThreads() call: added Qt::AA_X11InitThreads to QApplication settings such that XInitThreads() is called before app is started.
  • X Error: GLXBadContext 170: requires xserver-xorg-video-all package.

File:

• src/UIElements/Qt4/QtUIFactory.cpp (modified) (1 diff)

src/UIElements/Qt4/QtUIFactory.cpp

@@ -65 +65 @@
     testlauncher_thread(NULL)
 {
-
+  /** Initialises XInitThreads before starting the QApplication.
+   * see https://forum.qt.io/topic/85774/qt-application-crash/6
+   * This causes the following issues when starting molecuildergui:
+   * ```
+   * [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
+   * [xcb] Aborting, sorry about that.
+   * ```
+   */
+  QApplication::setAttribute(Qt::AA_X11InitThreads);
   // check whether we are in test mode
   if ((_argc > 1) && (isTestMode(_argv[1]))) {