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3 Posts

04-27-2018

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Re: P51s external monitor random shut off

2018-06-27, 18:17 PM

This looks like an interesting hardware problem to me.  

 

Try this:  Run the laptop hot and the screen will stop randomly shutting off or at least have the problem less frequently.  Cool the laptop, run it in a cold envirnment and the screen will randomly shutoff much more often.  

 

I've experenced similar issues when desingning hardware.  Communications frequency can have an extremely small change as a result of temperatue and can cause issues between ICs.

 

If this is a hardware issue then the resolution would expensive for Lenovo.

 

 

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4 Posts

07-01-2018

Canada

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Re: P51s external monitor random shut off

2018-07-01, 5:38 AM

I had my P51s for almost one year without any problem. This issue just began to happen after I updated the Lenovo bios a few days ago. Secodary monitor connecting via the HDMI cable blinks 1 or 2 times every minute. Same monitor connecting through the USB Type-C-to-VGA adaptor  or HDMI-to-VGA adaptor works fine. Interesting part is that if I keep the USB Type-C-to-VGA adaptor plugged in to the USB Type-C port and leave VGA end open , but connect the secondary monitor via the HDMI cable to the HDMI port, the blinking issue will not happen. If I unplug the USB Type-C-to-VGA adaptor, the secondary monitor will blink again.

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4 Posts

10-03-2015

United States of America

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Re: P51s external monitor random shut off

2018-07-01, 20:49 PM

Lenovo gave me a complete refund on my P51s six months after I bought it and demonstrated this problem. I send them video proof of the issue using two different manufacturer monitors and how the issue did not happen on my older  Yoga I.

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16 Posts

09-16-2017

United States of America

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Re: P51s external monitor random shut off

2018-07-15, 0:09 AM

Om my gosh! I actually had Asus send me a replacement monitor. I tried just about every solution and was convinced it was the monitor. Starting using my P51s in late Sept 2017. Issue didn't start until about 2 months ago. Only experience the issue at home with HDMI to HDMI set-up. At office, I use a docking station with dual external monitors - ZERO issues with the docking station. Tried disabling the HDMI sound driver - no help. Tried changing the refresh rate (@melharty wrote:

 

Effective change: I opened the Intel Graphics Settings and changed the refresh rate of the external monitor to 50p. The monitor instantly stopped flickering. It was going crazy with switching off & on every 10 seconds. Now it has been stable for at least an hour.) - NO HELP!

 

The above solution only provided momentary relief. Will now try HDMI to USB C per other's feedback. Wow, Lenovo really dropped the ball on this one. As a CPA, I cannot recommend Lenovo going forward. 

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16 Posts

09-16-2017

United States of America

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Re: P51s external monitor random shut off

2018-07-15, 23:55 PM

I have the issue with HDMI to HDMI with the laptop screen OPEN and in use.

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16 Posts

09-16-2017

United States of America

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Re: P51s external monitor random shut off

2018-07-26, 1:34 AM

**UPDATE** Spoke to customer support. Described the problem to them. They wouldn't comment on whether they're aware of others having the same problem. Since my p51s is within the first year of warranty, they are willing to replace the system board as the hdmi port is connected (I didn't verify this myself). Btw, I'm currently using a workaround with a HDMI to the USB-c port and I haven't had a issue for over 2 hours. HDMI to HDMI was giving me a problem several times an hour to the point that I can't work that way. Thankfully, my main office has a docking station. Will likely send in the laptop anyway as Lenovo is covering shipping both directions as well as the actual repair / replacement. Yes, I will remove my hard drive before shipping. No need to send that.

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4 Posts

07-01-2018

Canada

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Re: P51s external monitor random shut off

2018-07-26, 5:55 AM
Did you try my trick? Keep connecting the external monitor to the P51s' HDMI port. Just plug in the USB C-to VGA adapter to the P51s' USB C port. I was so surprised that it works for me. I just curious will it be a solution for others that have the similar issue.
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23 Posts

04-02-2018

United States of America

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Re: P51s external monitor random shut off

2018-07-26, 7:35 AM

Let me know if the depot rma process fixes it

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7 Posts

05-29-2018

Canada

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Re: P51s external monitor random shut off

2018-07-26, 11:35 AM

@CP808HI this seems a DESIGN issue, it's widespread rather than a replicant issue..

How do you/they know simply swapping boards will solve the issue, when this is the same effect as having someone else's P51S..

NOW if they told you they recently redesigned the board, and the newsest P51S off the lines don't have this issue.....

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7 Posts

05-29-2018

Canada

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  • Message 70 of 119

Re: P51s external monitor random shut off

2018-07-26, 11:37 AM

@ventureca WAIT WAIT, so you're saying plugging anything into the USB-C port, AND ALSO using the HDMI plug (for the video connection) will solve the issue ?

 

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