Another interesting development, Spotify, while open, forces the computer onto the dedicated card.
So it seems that most of my use of this thing is on the 330m card. I would think that the computer ought to be trying to make use of the integrated graphics as much as possible and activating the discrete card when the oomph is needed. Am I wrong here? Should I be dancing around these apps which appear to have sloppy development?
You're close to nailing it on the head, there. Apple can't control (I don't believe) the dependencies these 3rd-party apps like Chrome and Spotify need in terms of our graphics card set-ups.
Basically, this whole switching idea has been a disaster compared to the reliability standards Apple set over 20 years (last-gen Powerbook G4 workhorse FTW).
Yes, Spotify, Chrome, even rinky dink little apps that you wouldn't expect will kick your MBP into using the 330m chip.
This is why I suggest using the
old version of gfxCardStatus - version 2.2.1. This was the last version, for whatever reason, that *truly* allows you to force the computer into integrated-only mode. At least in my experience...I tried the newest version on my 2010, attempted to use Integrated Only mode & still ended up getting kernel panics/crazy screen glitches:
https://gfx.io/switching.html
https://software.com/mac/apps/gfxcardstatus/2.2.1
Download that version and give it a spin. Avoid/disable updates on it. The menu bar icon should always have that italicized "i" and have "Integrated Only" selected. Youtube, HD streaming, Netflix, the basics should work fine. Chrome, Spotify, etc. will still run just fine, they'll just be utilizing the onboard Intel HD chip. Recent games and possibly something on the order of Final Cut probably aren't gonna be usable, though.
On the Apple Store front, it sounds like you weren't given good info. There is a
special test, specific to our machines, that a Genius can perform right at the bar that will let you know whether or not you have the switching issue. Took me all of 5 minutes to get the diagnosis, another 5 to get a price quote on replacing the logic board.
I was frustrated for a moment at first, as I was gonna sink a couple hundred into this bad boy to extend its life out (SSD + more RAM) but the gimpy card issue has me sailing on crippled legs till I get my hands on a new rMBP.