Hi Maximilian, thank you again for your response. > but are you sure that these > bootflags are still adequate for the latest cypress firmware?
What did you mean by "bootflags"?? Did you mean /proc/cmdline (i.e. cmdline.txt in Raspberry Pi)? > concerning bluetooth unfortunately this seems missing firmware > in latest upstream firmware git (see #962038 ) or possible wget info > https://wiki.debian.org/RaspberryPi4#Bluetooth I know that bluetooth interferes with 2.4GHz WiFi with pure Debian packages as reported in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=984844 I do not see any intererence between bluetooth and 5GHz WiFi. I doubt the intererence as bluetooth frequency does not overlap with 5GHz WiFi at all. With the firmware 20210208-4, 2.4GHz WiFi works fine provided that bluetooth is turned off by rfkill etc. I am running a combination of pure Debian packages and encountered the reported symptom. What is a Debian way to use 5GHz WiFi? Do you need additional information? > this should not be reproducible as 20210315-1 and 20210315-1~exp1 are > unchanged (just uploaded into experimental before unstable). I will re-check 20210315-1. Best regards, Ryutaroh
