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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the documentation of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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/*!
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\page known-issues.html
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\title Known Issues in %VERSION%
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\ingroup platform-specific
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\brief A summary of known issues in Qt %VERSION% at the time of release.
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This page documents known problems with the packaging and installation in
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Qt %VERSION%, as well as issues with third party software that we have
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not been able to work around. For a list of such issues in previous Qt
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versions refer to this page in the respective documentation.
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For a list list of known bugs in Qt %VERSION%, see the \l{Task Tracker}
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on the Qt website.
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An overview of known issues may also be found at:
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\l{http://qt.gitorious.org/qt/pages/Qt460BetaKnownIssues}
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{Known Issues Wiki}.
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\section1 Installation Issues
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\section2 Building the Source Package on Windows 7
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\list
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\o When building Qt 4.5.0 with Windows 7, the build fails with an error
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message regarding failing to embed manifest. This a known issue with
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Windows 7, explained in the Windows 7 SDK Beta
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\l{http://download.microsoft.com/download/8/8/0/8808A472-6450-4723-9C87-977069714B27/ReleaseNotes.Htm}
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{release notes}. A workaround for this issue is to patch the
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\bold{embed_manifest_exe.prf} file with the following:
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\code
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diff --git a/mkspecs/features/win32/embed_manifest_exe.prf b/mkspecs/features/win32/embed_manifest_exe.prf
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index e1747f1..05f116e 100644
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--- a/mkspecs/features/win32/embed_manifest_exe.prf
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+++ b/mkspecs/features/win32/embed_manifest_exe.prf
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@@ -8,4 +8,9 @@ if(win32-msvc2005|win32-msvc2008):!equals(TEMPLATE_PREFIX, "vc"):equals(TEMPLATE
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QMAKE_POST_LINK = $$quote(mt.exe -nologo -manifest \"$$replace(OBJECTS_DIR,/,\\)\\$${NOPATH_TARGET}.intermediate.ma
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nifest\" -outputresource:$(DESTDIR_TARGET);1$$escape_expand(\n\t))
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QMAKE_POST_LINK += $$QMAKE_PREV_POST_LINK
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QMAKE_CLEAN += \"$$replace(OBJECTS_DIR,/,\\)\\$${NOPATH_TARGET}.intermediate.manifest\"
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+ isEmpty(RC_FILE) {
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+ system("echo.>$$replace(OUT_PWD,/,\\)\\$$replace(OBJECTS_DIR,/,\\)\\Windows7WorkAround.rc")
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+ RC_FILE = $$replace(OUT_PWD,/,\\)\\$$replace(OBJECTS_DIR,/,\\)\\Windows7WorkAround.rc
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+ }
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+
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}
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\endcode
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\section2 Installing the Source Package on Unix systems
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\o If you download a Zip source package, you will need to convert
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Windows-style line endings (CR/LF) to Unix-style line-endings (LF) when
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you uncompress the package. To do this, give the "-a" option when you
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run the "unzip' command.
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If you fail to supply the "-a" option when unzipping the package, you
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will see the following error message when you attempt to execute the
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configure command:
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"bash: ./configure: /bin/sh^M: bad interpreter: No such file or directory"
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\endlist
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\section2 Installing on Mac OS X 10.6 "Snow Leopard"
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\list
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\o Performing a new install of the Qt 4.6 beta on Snow Leopard
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triggers a bug in the installer that causes the install to fail.
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Updating an existing Qt installation works fine.
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There are two workarounds, either disable spotlight for the target
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drive during the install, or do a custom install where you deselect
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documentation and examples. Run the installer again as a full
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install to get the documentation and examples installed.
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\endlist
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\section1 Issues with Third Party Software
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\section2 X11
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\list
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\o There is a bug in the 169.xx NVIDIA drivers on certain GeForce 8 series
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cards that is triggered by the OpenGL paint engine when using QPainter
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on a QGLWidget to draw paths and polygons. Some other painting
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operations that end up in the path fallback are affected as well. The
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bug causes the whole X server to repeatedly hang for several seconds at
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a time.
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\o There is an issue with NVIDIA's 9xxx driver series on X11 that causes a
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crash in cases where there are several \l{QGLContext}s and the extended
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composition modes are used (the composition modes between and including
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QPainter::CompositionMode_Multiply and
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QPainter::CompositionMode_Exclusion). This affects the composition mode
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demo in Qt 4.5, for example. The crash does not occur in newer versions
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of the drivers.
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\endlist
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\section2 Windows
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\list
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\o When using version 6.14.11.6921 of the NVIDIA drivers for the GeForce
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6600 GT under Windows XP, Qt applications which use drag and drop will
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display reduced size drag and drop icons when run alongside
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applications that use OpenGL. This problem can be worked around by
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reducing the level of graphics acceleration provided by the driver, or
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by disabling hardware acceleration completely.
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\o With NVIDIA GeForce 7950 GT (driver version 6.14.11.7824), a fullscreen
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QGLWidget flickers when child widgets are shown/hidden. The workaround
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for this is to use \l{QWidget::}{setGeometry()} with a width/height 1
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pixel bigger than your geometry and call \l{QWidget::}{show()}.
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\o A bug in the Firebird database can cause an application to crash when
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\c{fbembed.dll} is unloaded. The bug is fixed in version 2.5.
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\endlist
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\section2 Mac OS X
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\list
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\o If a sheet is opened for a given window, clicking the title bar of that
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window will cause it to flash. This behavior has been reported to Apple
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(bug number 5827676).
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\endlist
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*/
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