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54 Posts

03-30-2008

Paris, France

110 Signins

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  • Posts: 54
  • Registered: ‎03-30-2008
  • Location: Paris, France
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  • Message 1 of 5

Y700 Brightness and color change often in case of a sound notification or at random

2019-08-11, 8:19 AM

Hi,

Since a few weeks, my Y700-15ISK is acting strangely. When I use night lighting and a 75% brightness, when there is a sound notification (not only), for instance when I connect a usb key, colors revert back to daylight setting and 100% brightness. Anyone already encountered this. I suspect a H/W issue but it's difficult to be sure...

Thanks.

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299 Posts

08-27-2016

Greece

1478 Signins

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  • Posts: 299
  • Registered: ‎08-27-2016
  • Location: Greece
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  • Message 2 of 5

Re: Y700 Brightness and color change often in case of a sound notification or at random

2019-08-17, 6:31 AM
Probably this is a software issue. You can try reinstalling windows

I am a volunteer in this forum and also a lenovo user. If i helped you, click on the kudos button!

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54 Posts

03-30-2008

Paris, France

110 Signins

624 Page Views

  • Posts: 54
  • Registered: ‎03-30-2008
  • Location: Paris, France
  • Views: 624
  • Message 3 of 5

Re: Y700 Brightness and color change often in case of a sound notification or at random

2019-08-17, 7:13 AM

Thanks for the hint. Actually I have a lot of C: image backup, it would be more efficient to restore a version before the issue occured. I might try that if nothing else works...

However I am lending towards a H/W issue because of this I had not mentionned before : just before the issue occured; one day, my Y700 refused to change screen brightness, I finally realized that the nVidia graphics card was somehow offline, I went into the bios, disabled switchable graphics, saved the bios, changed back switchable graphics (I enabled it) and after reboot, brightness was again working normally.

I have tried to reflash the bios, just in case, but the issue is still here.

Regards !

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299 Posts

08-27-2016

Greece

1478 Signins

7297 Page Views

  • Posts: 299
  • Registered: ‎08-27-2016
  • Location: Greece
  • Views: 7297
  • Message 4 of 5

Re: Y700 Brightness and color change often in case of a sound notification or at random

2019-08-17, 7:24 AM
Have a look on settings, ease of access. Maybe there is an option for 'flashing notifications' causing your screen to flash like that.

Yes you can revert to a previous version, but i always prefer a clean install

I am a volunteer in this forum and also a lenovo user. If i helped you, click on the kudos button!

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54 Posts

03-30-2008

Paris, France

110 Signins

624 Page Views

  • Posts: 54
  • Registered: ‎03-30-2008
  • Location: Paris, France
  • Views: 624
  • Message 5 of 5

Re: Y700 Brightness and color change often in case of a sound notification or at random

2019-08-17, 7:26 AM

Thanks. I'll post here if I manage to solve the issue...

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