So this has been happening to me and my father, who both own and use Illustrator professionally. When using certain shortcuts, in my case ctrl shift o for outline text, my program seizes for a moment, then stats showing my FPS, GPU temp, CPU temp, and RAM usage appears in the top left corner. Not sure if this is from a third party app, but I can't find any forum answers for this.
You could start with telling us your version and system.
Did you already try a system reboot?
And then: did you already try running Illustrator without anything (nothing, not even browser and stuff) besides it? Preferably after restarting the machine?
Yes it started on the last verison of Illustrator CC 2017. I have since udated to 2018 and am still having the issue. I have tried rebooting the machine. I have run Illustrator alone without programs running in the background, but not as the only installed program on my machine. That would take far too much time to be worth it.
I uninstalled CAM from NZXT and that seemed to be the root of the issue. There must have been some hotkey overlap.
Thank you for digging into this and glad you sorted it out.
Can you please mark your own answer as correct, so others can find it more easily? Thank you.
This is an old thread, but just an FYI for anyone looking into this in 2020.
You dont have to completely uninstall NZXT CAM, just uncheck the offending overlays in the software.
I have them all checked in the screen cap above (because I dont have this specific problem), but if you are seeing them in Photoshop and dont want to uninstall NZXT CAM (you still want that sweet rgb action) then unchecking the options should fix the problem.
You may have to restart Photoshop to see it resolve.
@gigazarek Do you like NZXT CAM? I uninstalled before I read your response, but now I'm debeting reinstalling. I liked it, but now I don't trust it after it offended me in Photoshop! WHY?!?
NZXT is required if you have lighting in your nzxt case, etc. It's a really great program that also handles cooling and level of sound in your machine plus many other things.
All you have to do is change the HOTKEY for the overlay in nzxt settings, you don't have to turn off the overlay entirely if you work on gigantic files like I do sometimes.
Additional note- hte normal hotkey is CTRL + O so you most likely popped this opening a new file as I did.