On Wed, 2022-11-30 at 16:19 -0500, Bruno Dantas wrote: > I have an X230 ThinkPad with coreboot and Intel Dual Band Wireless-AC > 7265 card, which uses the iwlwifi kernel module. Module's wifi power > saving is off (the default setting). > > When I scan for wifi hotspots at the command line, every other scan > gives me bogus (too low) signal strengths and every other scan gives > me expected signal strengths: > [...] > Does anyone know why this happens and how to fix it so that every scan shows the expected signal strengths? > I think this NIC might be switching antennas for scan every time. If you're able to open it, it might be a good idea to check if they're both connected well, almost seems like one might not be connected quite correctly? Not sure I have any better idea. You could record debug data with trace-cmd [1] and then at least we could confirm this is the case. johannes [1] https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging#tracing
