Ansh Gupta <anshgupta1941@xxxxxxxxxxx> wrote: > Hello, > > > > If you play a local music without WiFi connection, does it work well? > > Works a lot better, no disconnections even after going to idle mode. > There is still a delay in providing audio output, but the delay has > reduced to 1 to 2 seconds, after which I can hear. > > > > If only WiFi connection (without Bluetooth), does connection drop? > No. > > > > Bluetooth operates on 2.4GHz band, so is it possible to connect AP on > > 5 GHz band? > > The 5GHz band SSID does not show up in the available network list until > I am 1 to 2 feet away from AP. This happens regardless of whether > bluetooth is on or off. When connected, I can use that network at normal > speeds even if I am about 3 meters away from AP with a wall in > between. I have a separate SSID setup for both the 2.4 and 5GHz bands. I > did cross check with other devices, and they could connect to the 5GHz > SSID from a 3 meter distance. > > Please note that I do not have access to this particular AP anymore than > 9 days, so I would not be able to provide information regarding it after > that. The issue with bluetooth and 2.4GHz band is not unique to this AP. > I tried this with my phone hotspot using 5GHz band, but the results are > same for every device - it would connect only within a 1 foot radius. This is very weird. Actually, STA can find AP passively by listening beacons. Is it possible take your phone with hotspot on 5GHz at a clear place? > > Besides, bluetooth works fine on 5GHz band, although delay in audio > output by 1 to 2 seconds is present. > > > Turn off power saveing entirely by > > sudo iw wlan0 set power_save off > > > > to see if ease symptom. > No improvements noticed in bluetooth and 5GHz wifi detection. > > > Additional details I thought would be useful: > > > I have a wireless usb mouse attached to my laptop, > > $ lsusb -d 3938:1031 > > Bus 003 Device 003: ID 3938:1031 MOSART Semi. 2.4G Wireless Mouse > > However, disconnecting the mouse did not make a noticeable difference. > > > Occasionally, the earphones disconnect when audio profiles are switched, > from A2DP to HSP/HFP and vice versa. > > This only occurred with the 2.4GHz band and not the 5GHz band. Software > which records voice does this profile switching. To diagnose BT disconnection problem, please capture log by: while [ 1 ]; do echo ""; date -R; cat /sys/kernel/debug/ieee80211/phy0/rtw89/btc_info ; sleep 2; done | tee xxxxx.log As I add 'date' in log, please manually record the time BT gets disconnect or abnormal. Also, reproduce symptoms at least three times. (more is better) Summarize what we need: 1. btc_info log (mentioned above) 2. kernel and syslog log (with date to align btc_info log) 3. repeat experiments at least three times, and record/share the disconnection/abnormal time/symptom to us.
