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Blue Screen Again
Posts: 6
Registered: ‎04-08-2010
Location: China
Message 81 of 90 (2,264 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

@TinyRK

 

First

 

 

second: Plugg in AC adapter, The backlight don't be closed.

 

Try it !!!

 

 

Ctrl-Alt-Del
Posts: 9
Registered: ‎12-02-2008
Location: Germany
Message 82 of 90 (2,235 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

Hi TinyRK, thank you for reporting this problem, I also have this since I bought my T410.

 

And, I also did not get this issue repaired by the onsite service, actually. My motherboard was also already changed

 

I also cofirm that this is not an OS problem and, for my T410, a thing of battery charge level, it also occurs when changing to power supply in BIOS mode, also with a high level of battery charge.

SCSI Port
Posts: 66
Registered: ‎02-07-2010
Location: USA
Message 83 of 90 (2,233 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

My T410 is now at Lenovo directly with actual engineers, not just technicians. 

We'll see what happens next.

 

But I am seriously annoyed! Smiley Mad

Ctrl-Alt-Del
Posts: 9
Registered: ‎12-02-2008
Location: Germany
Message 84 of 90 (2,231 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

Okay, good luck. Keep us informed.
Paper Tape
Posts: 2
Registered: ‎01-09-2012
Location: Romania
Message 85 of 90 (2,211 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

[ Edited ]

Hello,
Recently I had the same issue with a Lenovo T520 machine.
In my case,the problem was that Windows 7 automatically changed the refresh rate from 60HZ (on power) to 50HZ(on battery).
I solved the problem by editing the Windows7 power management for the Intel Graphics and changing the value from Balanced to Maximum Performance.

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SCSI Port
Posts: 66
Registered: ‎02-07-2010
Location: USA
Message 86 of 90 (2,206 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

That only makes the screen look weird (washed out colors), but does not turn off the LED-Backlight.

And I have a dedicated nvidia-GPU, not the Intel GMA, so this is not related, i guess.

Paper Tape
Posts: 2
Registered: ‎01-09-2012
Location: Romania
Message 87 of 90 (2,204 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

[ Edited ]

I am sure that my T520 had the same yimptoms as in the movie on youtube.

I have an NVIDIA 240M with Optimus technology ,but when I tested the NVIDIA card wasn't used , only the Intel.

The test was simple:

- right click on Desktop,Properties->Monitor->Refresh Rate = 60HZ - on power

- unplug the power cord,the screen turn off,then on . Refresh Rate = 50HZ - on battery (the colors were the same)

- edit the power management settings,then retested - everything OK

 

The only difference in my case is that the screen turns on automatically .

 

Regards,

Ctrl-Alt-Del
Posts: 9
Registered: ‎12-02-2008
Location: Germany
Message 88 of 90 (2,164 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

On my T410, the error seems to be fixed.

The technician did an onsite service and swapped my display panel and display cable. Now the backlight is still on after plugging in.

SCSI Port
Posts: 66
Registered: ‎02-07-2010
Location: USA
Message 89 of 90 (2,143 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

After the awesome lenovo Squad Team (yes, there is such a thing Smiley Very Happy )checked my T410, I will get it replaced.

I would have not accepted any other solution, since it took only 5 service-calls on this issue.

 

Anyways, thank you Lenovo and this is why I bought the 3-year accidental Thinpad yadayada insurance protection masterplan!

 

I will be happy once I have my new Thinkpad in my hand.

 

Fanfold Paper
Posts: 3
Registered: ‎04-06-2012
Location: Serbia
Message 90 of 90 (2,067 Views)

Re: T410 - LED backlight turns off as soon its plugged in and battery threshold warning pops up

[ Edited ]

Hi all,

 

I m having similar problem with T410s - no backlight no matter what I do. Changed display twice, motherboard once and LED cable once. 

Is there a solution?

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