Challenged with Controlling Samsung Tv Sound and Power with Gemini Air Device

Hi there. We're sorry you're having trouble controlling the Samsung TV sound and power with the Gemini Air device. Programming the remote control helps with this. Visit How to program your DIRECTV remote control | DIRECTV Support to learn more. Let us know if this helps. Jason, DIRECTV Community Specialist.

thank you but still same result

We're also concerned as to why the remote isn't properly working with your Samsung TV. Please try these troubleshooting steps to control the volume. 

Press the ‘Home’ button on the remote

Arrow right and select the ‘Settings’ (Gear Icon), press ‘OK’ on the remote

Select "Systems", press "OK"

Select "Remote & Devices", press "OK"

Select ‘Program Your Remote’, press OK

Select ‘Switch Volume Control’, press OK

Select ‘TV’ or ‘Speaker System’, press OK

Device is now set to control the volume.

And to power off the device please try these troubleshooting steps. 

Remote Programming – Power Off Devices

Scroll right and Select ‘Settings’ (Gear Icon), press ‘OK’

Select ‘Systems’, press ‘OK’ on the remote

Select ‘Remote & Devices’, press OK

Select ‘Program Your Remote’, press OK

Select ‘Power Off Devices’, press OK.
These steps should resolve the issues you're having with the remote control. please let us know if these help. Bernadette, DIRECTV Community Specialist

think those have all been tried with no success but I will report back.

Thanks for the update. You may attempt a factory reset using your remote by pressing and holding the Home and Exit buttons together until the LEDs on both sides show red. Next, input 981 on the remote. Once the LEDs go off and flash blue thrice, proceed to re-pair the remote. Please let us know if issue persists. Shirley, DIRECTV Community Specialist