If you have gas pistons, it may be from those. I have to lube mine with liquid silicone about every other month, or they are very annoying.
To lube it, you simply extend the awning, spray some silicone lubricant along the metal (shiny) shaft of the piston, and then retract it.
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2008 F250 Lariat SuperCrew 4X4 6.4 Diesel
Never Enough Time Camping!!