In search for a more stable and reliable system I picked up top spec rMBP (with nVidia 750m). However, quite often it displeases me when it enters some non-cooperative mode where it's unable to switch to the dedicated GPU and becomes useless until a restart. And I really can't notice what causes it to go in that state. I would appreciate it if you could help me debug the thing.
I recorded a couple of descriptional clips to clarify the issue:
This one shows that the MacBook is unable to go to sleep: http://youtu.be/H2F4LWa_gYY
OS: 10.9.1 (Up to date - February, 16th, 2014)