Support in other languages: 
Showing results for 
Search instead for 
Do you mean 
Welcome to the Lenovo Community

Welcome to the Forums!

Welcome to Lenovo's Peer-to-Peer Discussion Community!
Please note our guidelines. How to register and login and Community FAQs.
Shape the Future of PCs

Help Lenovo Shape the Future of PCs

Take the ownership survey. Share your ideas with our product team
Community Spotlight

Visit the Lenovo Blogs!

Check out the ThinkPad Time Machine
Visit the Community Spotlight Blog
Windows  10

Are you ready for Windows 10?

Get to know Windows 10
Visit the Windows 10 Support Center
Reply
Paper Tape
Posts: 6
Registered: ‎02-07-2012
0 Kudos

Flicker on Shutdown

Has anyone experienced flickering or screen shutoffs on computer shutdown? 

Guru
Posts: 8,986
Registered: ‎12-26-2009
Location: Vancouver
0 Kudos

Re: Flicker on Shutdown

What model ThinkPad do you have?

I haven't seen anything of the sort on a W520, T400, X61, T60, X100e.
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen & MB168B+
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen
Highlighted
Paper Tape
Posts: 6
Registered: ‎02-07-2012
0 Kudos

Re: Flicker on Shutdown

sorry I have a w520 I got in Dec.

Punch Card
Posts: 31
Registered: ‎04-10-2012
Location: United States
0 Kudos

Re: Flicker on Shutdown

I have seen that on my w520 also. I would guess its due to some background program not shutting down quickly enough?

Guru
Posts: 8,986
Registered: ‎12-26-2009
Location: Vancouver
0 Kudos

Re: Flicker on Shutdown

Strange. I'm not seeing any flickering during shutdown.

Try setting all NVIDIA services to manual in Services.
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen & MB168B+
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen
Punch Card
Posts: 54
Registered: ‎02-12-2012
Location: ON, Canada
0 Kudos

Re: Flicker on Shutdown

[ Edited ]

Sounds possibly the same as or related to this:

http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/New-ThinkPad-W520-screen-quot-flashes-quot-whe...

 

Would need to clarify - is it just dimming and then re-brightening (could be Win7 waiting on a process to close as mentioned already) or totally blacking out then coming back (graphics driver, which I've seen on other Optimus machines as well, and will vary from configuration to configuration, likely depending on which GPU is active at the time the machine is shut down)

 

For example, if you plug in an external monitor, the internal panel will flash black, then come back on. Does this look the same to you as the flicker during shutdown?

--
12/03 W520 4270-CTO
i7-2760QM / 8GB 1333 / 64GB Crucial M4 mSATA / 500GB Hitachi 7200RPM / 2000M / FHD