Still broken after months...
1. First Finder window after reboot always shows some 'default' settings (size, column widths) but never what it was last set to.
2. After switching from internal MacBook display to closed-lid mode the Finder windows are always misaligned. Same goes for Mail windows. Sometimes Finder windows even revert to 'default' settings instead of what the user last set them to.
3. When waking in clamshell mode, the external screen sometimes remains dark despite the MacBook having woken up. Sometimes repeatedly hitting keys or moving the mosue doesn't even help. In these cases, hitting ctrl-shift-eject (= sleep screen) and then hitting other keys (to wake screen again) sometimes does.
4. Alignment of icons on desktop changes for no apparent reason every once in a while.
5. Weather widget in Dashboard gets garbled display after a few days of use.
And yes, it's all been reported to Apple.
My friends wonder why I haven't updated.I wonder what happened to " It Just Works."there was a time when that slogan was true . but since iPod iPhone and iPad I suspect all the best coders work on the toys and Macs get what's left
They seem to have made some significant changes to the GPU subsystem.
On my 2012 rMBP firing up iPhoto or some java apps (Freemind) would cause a switch to the discrete GPU. Now it doesn't.
I noticed this because now my computer crashes within a few minutes of use with my external display connected. To troubleshoot, I decided to try forcing the dGPU without the external display attached. Strange that the graphics switching option in Energy Saver doesn't seem to be having any effect either -- its still using the HD4000.
UPDATE: It seems that not switching to the dGPU was a glitch. After rebooting, my machine switches to the dGPU when I launch iPhoto, or turn off automatic graphics switching. When the dGPU is in use, my system crashes, randomly, but steadily.