When i alt tab out of tf2 (full screen) theres a good chance I won't be able to open the game again, the application will freeze and subsequently crash. This issue does not happen in any other game, including other source engine games (CSGO etc.).
this issue has plagued me for just over a year since I upgraded to a GTX 970. Prior to this (GTX 670) I did not have this issue. In that same time I've tried various different launch options, changing some cvars in my config, changing my refresh rate. I have a friend with the EXACT same graphics card and he has this same issue with tf2, but not other games.
I'm using win 10 with 3x24" monitors connected to the 970, 2 at 60hz and main at 144hz.
Obviously if this was killing me I could run windowed mode, but when I tried windowed mode I got 30-40 less frames, which causes me to dip to around 100, which is a bit gross at 144hz.
Any one have any ideas about this?