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Paper Tape
Posts: 6
Registered: ‎02-07-2012
Message 1 of 6 (314 Views)

Flicker on Shutdown

Has anyone experienced flickering or screen shutoffs on computer shutdown? 

Guru
Posts: 9,240
Registered: ‎12-26-2009
Location: Toronto, Canada
Message 2 of 6 (310 Views)

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: 2720QM, Q2000M at 1082/1376, 32GB RAM, 500GB + 750GB HDD, FHD screen & MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 160GB HDD, WXGA+ screen
TPT1: 1839-23U
Paper Tape
Posts: 6
Registered: ‎02-07-2012
Message 3 of 6 (263 Views)

Re: Flicker on Shutdown

sorry I have a w520 I got in Dec.

Punch Card
Posts: 31
Registered: ‎04-10-2012
Location: United States
Message 4 of 6 (259 Views)

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: 9,240
Registered: ‎12-26-2009
Location: Toronto, Canada
Message 5 of 6 (254 Views)

Re: Flicker on Shutdown

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

Try setting all NVIDIA services to manual in Services.
W520: 2720QM, Q2000M at 1082/1376, 32GB RAM, 500GB + 750GB HDD, FHD screen & MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 160GB HDD, WXGA+ screen
TPT1: 1839-23U
Punch Card
Posts: 54
Registered: ‎02-12-2012
Location: ON, Canada
Message 6 of 6 (246 Views)

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
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