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76 Posts

10-28-2013

Lynbrook, NY

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Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 15:58 PM

wrote:

Since no one is going to try a different OS to check the yellow issue, I'll do it.  I am getting my Y2P this late afternoon.  Does anyone know how to get into the firmware to turn off Secure Boot?  Is it a F2 or DEL key during boot up?  UEFI these days don't prompt you anymore.

 

I don't want to boot into Windows and do an advanced reboot.  I just want to get in before I even set up Windows (I want to make an image out of the factory SSD first), and while I'm at it check for the yellow issue in Linux.

 

Thanks.


Great idea.  I'd also like to hear your results.  Unfortunately, mine is on order and not supposed to arrive until sometime after Thanksgiving, hence I could not try your experiment.  Thanks in advance for sharing.

 

 

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1 Posts

10-31-2013

OC

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Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 16:26 PM

i have install fresh win 7.. the yellow issue still there, nothing change. 

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10 Posts

11-15-2012

United States

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Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 17:25 PM

This link is a gamut which shows a hexagon pattern around the white point on the Y2P immediately after booting or coming out of sleep.  On 6 other displays this hexagon pattern is not present and is never present on an external monitor. 

http://dotcolordotcom.files.wordpress.com/2013/07/dci-p3-adobe-1998-pointer-cie-1976-004.png.

I have loaded it as my desktop background to help verify the yellow issue.

When I enter Lenovo Energy Manager and hit Stable then High Performance, this hexagon disappears and colors change including yellow.   

If I now go to Windows Power Plan and hit any other power plan, including stable, the hexagon is still not present.  This means that I can use the power plan I want as long as I have hit the Energy Manager High Performance first.

In the last 12 hours 3 or 4 times randomly the hexagon has reappeared without my rebooting or coming out of sleep.  Do not know why.

 

 

 

I

 

 

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32 Posts

10-24-2012

San Diego

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Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 17:28 PM

If you guys want to try a different OS, use the Ubuntu's Wubi installer (Windows installer).  Once you're done testing, you can just uninstall it from windows.

 

I've worked extensively with Windows 8's pre-installation and once you wipe it from your laptop, there is no way to do a fresh install.  I normally have to backup everything using Acronis before I wipe the HD.

 

But Ubuntu should be enough to satisfy testing.

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4 Posts

10-31-2013

UK

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Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 17:55 PM
You could just install Linux to a USB stick and change the BIOS to run from USB. That should be possible.
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33 Posts

10-30-2013

Chicago

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  • Message 556 of 1242

Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 18:30 PM

 

wrote:
You could just install Linux to a USB stick and change the BIOS to run from USB. That should be possible.


^^^ This.  (Make a bootable Linux USB drive, no need to install or reformat SSD).

The reason why I wanted to know if another OS experience this issue is I wonder if it's something to do with how Windows renders with this particular panel. It's a LOOOOONG shot, but...

I don't understand why EM can shift the colors that way. In the store, I played around with the Intel video driver settings (gamma, adjusting just the green, etc) and nothing produces the desired affect. Leaving everything default but changing only the EM setting to performance is satisfactory.

If Lenovo produce a software fix for Windows, they're just masking the problem. If the fix it in the video ROM, then it's a better fix (since it will fix it for all other OSes as well). The real fix, of course, is either the replacement of the LCD panel or a better calibration update for the panel's hardware driver.

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86 Posts

10-22-2013

California, USA

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  • Message 557 of 1242

Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 18:34 PM

wrote:

 

wrote:
You could just install Linux to a USB stick and change the BIOS to run from USB. That should be possible.


^^^ This.  (Make a bootable Linux USB drive, no need to install or reformat SSD).

The reason why I wanted to know if another OS experience this issue is I wonder if it's something to do with how Windows renders with this particular panel. It's a LOOOOONG shot, but...

I don't understand why EM can shift the colors that way. In the store, I played around with the Intel video driver settings (gamma, adjusting just the green, etc) and nothing produces the desired affect. Leaving everything default but changing only the EM setting to performance is satisfactory.

If Lenovo produce a software fix for Windows, they're just masking the problem. If the fix it in the video ROM, then it's a better fix (since it will fix it for all other OSes as well). The real fix, of course, is either the replacement of the LCD panel or a better calibration update for the panel's hardware driver.


I don't think using another OS would fix the problem either. However, Mark did mention that they were also working on a BIOS fix, so maybe they are going to go at this power/yellow issue from the system level. That would be best.

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39 Posts

10-22-2013

us

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  • Message 558 of 1242

Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 19:16 PM

It's not a power issue. If it was then you wouldn't be able to change to whatever plan you wanted without losing the yellows after setting them in energy manager. Energy manager obviously does more than just setting normal power settings.

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86 Posts

10-22-2013

California, USA

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  • Message 559 of 1242

Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 19:22 PM

wrote:

It's not a power issue. If it was then you wouldn't be able to change to whatever plan you wanted without losing the yellows after setting them in energy manager. Energy manager obviously does more than just setting normal power settings.


But the reason the yellows turn green is because the power manager is turning down the backlighting of those white pixels to save power. I didn't mean that there was a "power issue" per se, just that it was part of the cause of the problem.

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10 Posts

10-31-2013

Canada

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  • Message 560 of 1242

Re: Yoga 2 Pro 13 Yellow Color Issues

2013-10-31, 19:23 PM

Has anyone looked at the type of browser and color gamut to see if things improve.  Most web browsers are not very accurate.

 

Web Browser Color Management

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