Solver run: Used merged channels to get stderr.

src/View/RunSolver/Window.py

@@ -156,6 +156,7 @@ class SolverLogWindow(PamhyrWindow):
     def new_process(self, parent):
         new = QProcess(parent)
         new.setWorkingDirectory(self._workdir)
+        new.setProcessChannelMode(QProcess.MergedChannels)
         return new
 
     def setup_action(self):