def _handle_nouveau_graphics():
assert objects.backend == usertypes.Backend.QtWebEngine, objects.backend
if version.opengl_vendor() != 'nouveau':
return
if (os.environ.get('LIBGL_ALWAYS_SOFTWARE') == '1' or
'QT_XCB_FORCE_SOFTWARE_OPENGL' in os.environ):
return
button = _Button("Force software rendering", 'force_software_rendering',
True)
_show_dialog(
backend=usertypes.Backend.QtWebEngine,
because="you're using Nouveau graphics",
text="<p>There are two ways to fix this:</p>"
"<p><b>Forcing software rendering</b></p>"
"<p>This allows you to use the newer QtWebEngine backend (based "
"on Chromium) but could have noticable performance impact "
"(depending on your hardware). "
"This sets the <i>force_software_rendering = True</i> option "
"(if you have a <i>config.py</i> file, you'll need to set this "
"manually).</p>",
buttons=[button],
)
# Should never be reached
assert False
def init():
"""Initialize QtWebEngine-specific modules."""
# For some reason we need to keep a reference, otherwise the scheme handler
# won't work...
# https://www.riverbankcomputing.com/pipermail/pyqt/2016-September/038075.html
global _qute_scheme_handler
app = QApplication.instance()
software_rendering = os.environ.get('LIBGL_ALWAYS_SOFTWARE') == '1'
if version.opengl_vendor() == 'nouveau' and not software_rendering:
# FIXME:qtwebengine display something more sophisticated here
raise browsertab.WebTabError(
"QtWebEngine is not supported with Nouveau graphics (unless "
"LIBGL_ALWAYS_SOFTWARE is set as environment variable).")
log.init.debug("Initializing qute://* handler...")
_qute_scheme_handler = webenginequtescheme.QuteSchemeHandler(parent=app)
_qute_scheme_handler.install(webenginesettings.default_profile)
_qute_scheme_handler.install(webenginesettings.private_profile)
log.init.debug("Initializing request interceptor...")
host_blocker = objreg.get('host-blocker')
req_interceptor = interceptor.RequestInterceptor(host_blocker, parent=app)
req_interceptor.install(webenginesettings.default_profile)
req_interceptor.install(webenginesettings.private_profile)
log.init.debug("Initializing QtWebEngine downloads...")
download_manager = webenginedownloads.DownloadManager(parent=app)
download_manager.install(webenginesettings.default_profile)
download_manager.install(webenginesettings.private_profile)
objreg.register('webengine-download-manager', download_manager)
def _handle_nouveau_graphics():
assert objects.backend == usertypes.Backend.QtWebEngine, objects.backend
if os.environ.get('QUTE_SKIP_NOUVEAU_CHECK'):
return
if version.opengl_vendor() != 'nouveau':
return
if (os.environ.get('LIBGL_ALWAYS_SOFTWARE') == '1' or
'QT_XCB_FORCE_SOFTWARE_OPENGL' in os.environ):
return
button = _Button("Force software rendering", 'qt.force_software_rendering',
True)
_show_dialog(
backend=usertypes.Backend.QtWebEngine,
because="you're using Nouveau graphics",
text="<p>There are two ways to fix this:</p>"
"<p><b>Forcing software rendering</b></p>"
"<p>This allows you to use the newer QtWebEngine backend (based "
"on Chromium) but could have noticable performance impact "
"(depending on your hardware). "
"This sets the <i>qt.force_software_rendering = True</i> option "
"(if you have a <i>config.py</i> file, you'll need to set this "
"manually).</p>",
buttons=[button],
)
# Should never be reached
assert False
def init():
"""Initialize QtWebEngine-specific modules."""
# For some reason we need to keep a reference, otherwise the scheme handler
# won't work...
# https://www.riverbankcomputing.com/pipermail/pyqt/2016-September/038075.html
global _qute_scheme_handler
app = QApplication.instance()
software_rendering = (os.environ.get('LIBGL_ALWAYS_SOFTWARE') == '1' or
'QT_XCB_FORCE_SOFTWARE_OPENGL' in os.environ)
if version.opengl_vendor() == 'nouveau' and not software_rendering:
# FIXME:qtwebengine display something more sophisticated here
raise browsertab.WebTabError(
"QtWebEngine is not supported with Nouveau graphics (unless "
"QT_XCB_FORCE_SOFTWARE_OPENGL is set as environment variable).")
log.init.debug("Initializing qute://* handler...")
_qute_scheme_handler = webenginequtescheme.QuteSchemeHandler(parent=app)
_qute_scheme_handler.install(webenginesettings.default_profile)
_qute_scheme_handler.install(webenginesettings.private_profile)
log.init.debug("Initializing request interceptor...")
host_blocker = objreg.get('host-blocker')
req_interceptor = interceptor.RequestInterceptor(
host_blocker, parent=app)
req_interceptor.install(webenginesettings.default_profile)
req_interceptor.install(webenginesettings.private_profile)
log.init.debug("Initializing QtWebEngine downloads...")
download_manager = webenginedownloads.DownloadManager(parent=app)
download_manager.install(webenginesettings.default_profile)
download_manager.install(webenginesettings.private_profile)
objreg.register('webengine-download-manager', download_manager)
def _handle_nouveau_graphics(self) -> None:
"""Force software rendering when using the Nouveau driver.
WORKAROUND for
https://bugreports.qt.io/browse/QTBUG-41242
Should be fixed in Qt 5.10 via
https://codereview.qt-project.org/#/c/208664/
"""
self._assert_backend(usertypes.Backend.QtWebEngine)
if os.environ.get('QUTE_SKIP_NOUVEAU_CHECK'):
return
if qtutils.version_check('5.10', compiled=False):
return
if version.opengl_vendor() != 'nouveau':
return
if (os.environ.get('LIBGL_ALWAYS_SOFTWARE') == '1' or
# qt.force_software_rendering = 'software-opengl'
'QT_XCB_FORCE_SOFTWARE_OPENGL' in os.environ or
# qt.force_software_rendering = 'chromium', also see:
# https://build.opensuse.org/package/view_file/openSUSE:Factory/libqt5-qtwebengine/disable-gpu-when-using-nouveau-boo-1005323.diff?expand=1
'QT_WEBENGINE_DISABLE_NOUVEAU_WORKAROUND' in os.environ):
return
button = _Button("Force software rendering",
'qt.force_software_rendering',
'chromium')
self._show_dialog(
backend=usertypes.Backend.QtWebEngine,
because="you're using Nouveau graphics",
text=("<p>There are two ways to fix this:</p>"
"<p><b>Forcing software rendering</b></p>"
"<p>This allows you to use the newer QtWebEngine backend "
"(based on Chromium) but could have noticeable performance "
"impact (depending on your hardware). This sets the "
"<i>qt.force_software_rendering = 'chromium'</i> option "
"(if you have a <i>config.py</i> file, you'll need to set "
"this manually).</p>"),
buttons=[button],
)
raise utils.Unreachable
def _handle_nouveau_graphics():
"""Force software rendering when using the Nouveau driver.
WORKAROUND for https://bugreports.qt.io/browse/QTBUG-41242
Should be fixed in Qt 5.10 via https://codereview.qt-project.org/#/c/208664/
"""
assert objects.backend == usertypes.Backend.QtWebEngine, objects.backend
if os.environ.get('QUTE_SKIP_NOUVEAU_CHECK'):
return
if version.opengl_vendor() != 'nouveau':
return
if (os.environ.get('LIBGL_ALWAYS_SOFTWARE') == '1' or
# qt.force_software_rendering = 'software-opengl'
'QT_XCB_FORCE_SOFTWARE_OPENGL' in os.environ or
# qt.force_software_rendering = 'chromium', also see:
# https://build.opensuse.org/package/view_file/openSUSE:Factory/libqt5-qtwebengine/disable-gpu-when-using-nouveau-boo-1005323.diff?expand=1
'QT_WEBENGINE_DISABLE_NOUVEAU_WORKAROUND' in os.environ):
return
button = _Button("Force software rendering", 'qt.force_software_rendering',
'chromium')
_show_dialog(
backend=usertypes.Backend.QtWebEngine,
because="you're using Nouveau graphics",
text="<p>There are two ways to fix this:</p>"
"<p><b>Forcing software rendering</b></p>"
"<p>This allows you to use the newer QtWebEngine backend (based "
"on Chromium) but could have noticeable performance impact "
"(depending on your hardware). "
"This sets the <i>qt.force_software_rendering = 'chromium'</i> "
"option (if you have a <i>config.py</i> file, you'll need to set "
"this manually).</p>",
buttons=[button],
)
raise utils.Unreachable
def test_opengl_vendor(qapp):
"""Simply call version.opengl_vendor() and see if it doesn't crash."""
pytest.importorskip("PyQt5.QtOpenGL")
return version.opengl_vendor()
def test_opengl_vendor():
"""Simply call version.opengl_vendor() and see if it doesn't crash."""
pytest.importorskip("PyQt5.QtOpenGL")
return version.opengl_vendor()