I have the same laptop and this is what fixed the problem: enter BIOS (press F2 after powering on), look for Video - Switchable Graphics Optimus then turn it off (uncheck).
No more black screen after waking up from sleep. Problem solved !
This has been plaguing me for sometime. I have two precisions. One at home and one at work. If I bring my work laptop home, I get the same behavior. The difference is that I have different monitors as home (cheaper ones not made by Dell). It seems the monitors draw too much power and something akin to a circuit breaker goes off.
For now, I can get the laptop screen back on by disconnecting all devices to include the power cord, shutting down, then powering back up.
mscmilan
8 Posts
0
January 4th, 2020 07:00
I have the same laptop and this is what fixed the problem: enter BIOS (press F2 after powering on), look for Video - Switchable Graphics Optimus then turn it off (uncheck).
No more black screen after waking up from sleep. Problem solved !
HTH
P.S: credit to this answer
https://www.dell.com/community/Laptops-General-Read-Only/Precision-7710-screen-will-not-wake/m-p/4766156#M886465
JAAbbott
1 Message
0
December 23rd, 2020 12:00
This has been plaguing me for sometime. I have two precisions. One at home and one at work. If I bring my work laptop home, I get the same behavior. The difference is that I have different monitors as home (cheaper ones not made by Dell). It seems the monitors draw too much power and something akin to a circuit breaker goes off.
For now, I can get the laptop screen back on by disconnecting all devices to include the power cord, shutting down, then powering back up.
Good luck!