Thx for the link but issue mentioned in URL is not the same case our issue here.
We have tried to mute local microphone when audio cable is plugged in and starting share presentation but issue is still there. What is really confused me here is when you have audio cable plug in, you should NOT be sound any audio from labtop locally when audio cable is plugged in, right??
I've confirmed that Toshiba and Dell 6320 was working fine but not old Dell model.
This link was relevant to issue with garbled audio on the other end.
When you sharing presentation audio will be hear locally as well.
I think better will be if you open TAC case now so we can do thorough troubleshooting and check logs.
I've open TAC already with logs attached but engineer could not identify any faults in logs. Only suggestion from TAC was replace VGA cable which we already did. Testing result as i mention at earlier.
That's great then!
Please share result with us once case is solved.
Issue is not with VGA cable or misconfig on CODEC, it is related to audio jack on laptop.
There could be possibility of audio jack compatibility on laptop.
Cisco does not have check list of compatibility as there are too much brands on market.
BTW, Cisco also confirmed that when audio cable is plugged in, local room should not hear audio being played locally regardlessly.
Case is now resolved.
Thx for you help Rafal.
I have tried using Dell and HP laptops and my IPad. I get the same result from them all.
I have not tried changing the other settings yet. I will try those today.
in our case, audio jack on Dell and HP are not compatiable with share cable, i dont have exact model. But new Toshiba model works fine. Hople it helped.