If that doesn't work, and you either don't look up often or you don't mind a little ugliness, I've found running cable along the tops of walls near the ceiling works pretty well, and is easy to do. Here's part of my home network cable run and also part of the speaker cable run for the right rear surround sound channel [1].
Where a cable needs to make a turn to follow a corner, I screw in a cup hook. For support along a straight section of wall I nail a wire nail partly in and hang the cable on the protruding part.
[1] https://imgur.com/GVEiubN
