This issue is related to Raspi 4 or 5 on bookworm, I didn't test others.
Suppose e.g. your Raspi has hdmi_force_hotpug=1 enabled in the config.txt file, it happens sometimes that the WLAN connection interrupts - and does not return back again - even if the connection to your second monitor is established by (hot) plugging. This might drive you crazy.
Even more, because this happens with high-res monitors only (e.g. 2560x1440 and above). And it happens "sometimes".
And here's the good news.: A workaround is available. The behaviour described above happens only, if the WLAN 2.4GHz channel is 1, 2 or 3. In almost any case the WLAN router selects the channel automatically by default. Therefore it happens "sometimes". Change this to a fixed channel, say 8 or 13 or something like this, far above 3.
Ask me why?
No Idea, folks.
Suppose e.g. your Raspi has hdmi_force_hotpug=1 enabled in the config.txt file, it happens sometimes that the WLAN connection interrupts - and does not return back again - even if the connection to your second monitor is established by (hot) plugging. This might drive you crazy.
Even more, because this happens with high-res monitors only (e.g. 2560x1440 and above). And it happens "sometimes".
And here's the good news.: A workaround is available. The behaviour described above happens only, if the WLAN 2.4GHz channel is 1, 2 or 3. In almost any case the WLAN router selects the channel automatically by default. Therefore it happens "sometimes". Change this to a fixed channel, say 8 or 13 or something like this, far above 3.
Ask me why?
No Idea, folks.
Statistics: Posted by AgeGrimm — Wed Sep 18, 2024 1:08 am