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--- general:raspberry_pi [2022/05/05 16:30] – created sunkan
+++ general:raspberry_pi [2025/10/12 14:09] (current) – sunkan
@@ Line 19: / Line 19: @@
 </code>
+===== Enable WiFi using NetworkManager =====
+Create file /etc/NetworkManager/system-connections/<ssid_name>.nmconnection
+<code>
+[connection]
+id=<ssid>
+uuid=<uuid>
+type=wifi
+interface-name=wlan0
+timestamp=1697375379
+[wifi]
+mode=infrastructure
+ssid=<ssid>
+[wifi-security]
+auth-alg=open
+key-mgmt=wpa-psk
+psk=<PSK in plaintext>
+[ipv4]
+method=auto
+[ipv6]
+addr-gen-mode=default
+method=auto
+[proxy]
+</code>
+Set correct permissions
+<code>
+chmod 600 /etc/NetworkManager/system-connections/<ssid_name>.nmconnection
+</code>
+Remove NetworkManager.state file as that by default disables WiFi
+<code>
+rm /var/lib/NetworkManager/NetworkManager.state
+</code>
+====== Valgrind ======
+[[https://bugs.launchpad.net/raspbian/+bug/1743293]]
+[[https://snapcraft.io/valgrind]]
+Install newer valgrind for example by using a snap package \\
+Use this configuration to suppress some non-real errors
+<code>
+cat ~/.valgrindrc
+--sigill-diagnostics=no
+--suppressions=/home/pi/.valgrind.supp
+cat ~/.valgrind.supp
+{
+  libarmmemv7laddr8
+  Memcheck:Addr8
+  obj:/usr/lib/arm-linux-gnueabihf/libarmmem-v7l.so
+}
+{
+  libarmmemv7laddr4
+  Memcheck:Addr4
+  obj:/usr/lib/arm-linux-gnueabihf/libarmmem-v7l.so
+}
+{
+  libarmmemv7laddr2
+  Memcheck:Addr2
+  obj:/usr/lib/arm-linux-gnueabihf/libarmmem-v7l.so
+}
+{
+  libarmmemv7laddr1
+  Memcheck:Addr1
+  obj:/usr/lib/arm-linux-gnueabihf/libarmmem-v7l.so
+}
+</code>