Have tried both the desktop and server options provided by Radxa as well as the T3 release candidate. All have the same issue - no audio out of the aux jack, just static. When I try to test the audio in the desktop versions, it reports “Error playing test sound. No Such Driver”. I have tried 2 different speakers just to make sure that it wasn’t the speaker or cable that was the issue.
I decompiled the rk3588s-rock-5c.dtb file to compare it to the changes made at arm64: dts: rock 5c: modify es8316 clk per this forum link: CM5 and Rock 5C Headphone jack no audio via ES8316 and it looks like the change was pushed into the Desktop image. I tried the T3 release candidate just to be sure but the behavior is the same. I did not see anything in the rsetup Hardware or Overlays section that would indicate I had to enable anything.
Anyone else experiencing this issue? If audio is working for you, what OS type and version are you using?