--- a/libervia/desktop_kivy/core/kivy_hack.py	Mon Aug 28 17:09:15 2023 +0200
+++ b/libervia/desktop_kivy/core/kivy_hack.py	Mon Aug 28 18:29:18 2023 +0200
@@ -1,5 +1,4 @@
-#!/usr//bin/env python2
-
+#!/usr//bin/env python3
 
 #Libervia Desktop-Kivy
 # Copyright (C) 2016-2021 Jérôme Poisson (goffi@goffi.org)
@@ -17,54 +16,24 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-CONF_KIVY_LEVEL = 'log_kivy_level'
+from .constants import Const as C
+from libervia.backend.core import log_config
+import os
+import sys
 
 
 def do_hack():
     """work around Kivy hijacking of logs and arguments"""
     # we remove args so kivy doesn't use them
     # this is need to avoid kivy breaking QuickApp args handling
-    import sys
     ori_argv = sys.argv[:]
     sys.argv = sys.argv[:1]
-    from .constants import Const as C
-    from libervia.backend.core import log_config
     log_config.libervia_configure(C.LOG_BACKEND_STANDARD, C)
 
-    from . import config
-    kivy_level = config.config_get(C.CONFIG_SECTION, CONF_KIVY_LEVEL, 'follow').upper()
+    os.environ["KIVY_LOG_MODE"] = "PYTHON"
 
-    # kivy handles its own loggers, we don't want that!
-    import logging
-    root_logger = logging.root
-    kivy_logger = logging.getLogger('kivy')
-    ori_addHandler = kivy_logger.addHandler
-    kivy_logger.addHandler = lambda __: None
-    ori_setLevel = kivy_logger.setLevel
-    if kivy_level == 'FOLLOW':
-        # level is following SàT level
-        kivy_logger.setLevel = lambda level: None
-    elif kivy_level == 'KIVY':
-        # level will be set by Kivy according to its own conf
-        pass
-    elif kivy_level in C.LOG_LEVELS:
-        kivy_logger.setLevel(kivy_level)
-        kivy_logger.setLevel = lambda level: None
-    else:
-        raise ValueError("Unknown value for {name}: {value}".format(name=CONF_KIVY_LEVEL, value=kivy_level))
-
-    # during import kivy set its logging stuff
     import kivy
-    kivy # to avoid pyflakes warning
-
-    # we want to separate kivy logs from other logs
-    logging.root = root_logger
-    from kivy import logger
-    sys.stderr = logger.previous_stderr
-
-    # we restore original methods
-    kivy_logger.addHandler = ori_addHandler
-    kivy_logger.setLevel = ori_setLevel
+    assert kivy # to avoid pyflakes warning
 
     # we restore original arguments
     sys.argv = ori_argv