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47 Posts

12-26-2012

Netherlands

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Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-10, 15:48 PM

Latest Nvidia drivers are 3.10.90 but still no WIDI

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1 Posts

01-11-2013

United States

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Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-11, 4:52 AM

Darn, wish I had seen this post earlier. Well guess am also sending my laptop back. Calling Tech sup tomorrow and I have no patience for bs. I spent two hours today trying to fix this widi crap. I CLEARLY asked the representative 3 times in chat (that I recorded a screenshot for) does this have widi - wireless display he said yes, it comes with widi. If they try to draw circles around me they better get a return slip ready.

 

Note from Moderator:  A comment which violated the forum rules was removed.

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81 Posts

12-15-2012

New York, NY

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Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-12, 2:12 AM

I just got a replacement laptop (after requesting post-sales only send it to me if they could confirm WiDi worked on it). I will be testing it in a few hours and will let you know if it is properly configured.

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14 Posts

12-27-2012

United States

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Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-12, 2:22 AM
Yes please let us know what you find
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81 Posts

12-15-2012

New York, NY

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Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-12, 3:10 AM

No HD4000. No WiDi. I am so angry right now. If I don't hear a response from Lenovo within the next 5 days about why the Y500 has shipped without WiDi enabled and whether or not we will ever be able to have it then I guess I will have to return this laptop for a refund. i will also make sure and write to every tech magazine i can think of about this issue and spread the word on other forums. I will also write the Better Business Bureau. Can you think of anywhere else to spread the word? False advertising. I better get every penny back without any restocking fee.  The fact that we haven't had a response in days is even more upsetting.

 

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1 Posts

01-12-2013

Texas

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Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-12, 8:34 AM

Hello everyone, I've been monitoring this thread with some interest for a
little over a week now. It would seem that there has been a lack of substantive
progress on resolving this problem and I'd like to share what I've found so far
while researching this issue.

 

Before I get started, I'd like to clear something up first. All i7-3630M
processors have an HD 4000 processor integrated on the chip. As long as your
model has an Intel WiFi card (my version has a Centrino N-2230), it meets all
of the hardware requirements for WiDi.

 

Thus, the problem is not one of hardware compatibility, but rather, if the
hardware is properly configured to support WiDi. From what I've been reading,
it would seem that on most(if not all) models of the Y400/500, Windows does not
recognize the HD 4000 processor. It would appear that this problem occurs in
both Windows 7 and Windows 8, which leads me to suspect that the HD 4000 is not
recognized because it has been disabled by at the BIOS level.

 

Aside the possibility of this simply being a bug (albeit a rather significant
one in my opinion), I can only think of one good really good reason why reason
why Lenovo would have opted to disable this hardware, and it's name is Optimus.

 

For those who don't know, Optimus allows Your system to dynamically switch
between an integrated GPU and a discrete GPU. By default, the Nvidia's driver
will defer processing to the integrated GPU when there are no graphically
intensive applications running. But when the driver detects a more graphically
intense workload, it turns on the discrete GPU (in this case, the GT 650M),
and let's it handle the more difficult processing. Optimus is able to achieve
this by using the frame buffer of the integrated GPU (in this case, the HD 4000)
to send output to the screen. Even when the discrete GPU is in use, it's
internal frame buffer must be copied to the buffer of the integrated GPU,
before it's output can be sent to the screen.

 

There are two key points to take away from this:

 

(1) In order for Optimus to work, any display controllers (for the Y400/500
this includes the integrated display, the HDMI port, and WiDi) must be
physically connected to the controller of the integrated GPU. If this is not
the case, then there is not much of a point in leaving it enabled in the BIOS,
as it would not have any screen to send it's output to.

 

(2) The process of copying the frame buffer of the discrete GPU to that of the
integrated GPU eats up a significant slice of the bandwidth available on the
PCI-Express bus. This is fine if your system only supports a single discrete
GPU, but becomes a problem when you try adding SLI into the mix. SLI also needs
a large slice of the bandwidth on the PCI-E bus to allow coordination between
the discrete GPUs.

 

Although I cannot say definitively that Optimus and SLI are incompatible, I
have not been able to find any evidence to the contrary. If they are not
compatible with one another, it would be reasonable to assume that because all
Y400/500 models have the necessary hardware to support SLI via the ultrabay,
the HD 4000 may have been disabled in the BIOS either to prevent potential
instability in systems using both Optimus and SLI.

 

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81 Posts

12-15-2012

New York, NY

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Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-12, 16:26 PM
Priz, I have read a similar suggested scenario in another forum, and it makes sense. The problem is that Lenovo has REFUSED to confirm this, so those of us deciding if we want to return the machine cant make an informed decision. Tech support appears to be completely clueless. Meanwhile, I am going to see if the configuration exist successfully on another computer.
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29 Posts

01-12-2013

Virginia, US

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Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-12, 18:12 PM
Perfectly said.
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47 Posts

12-26-2012

Netherlands

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  • Message 89 of 170

Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-12, 18:34 PM

wrote:

 

Although I cannot say definitively that Optimus and SLI are incompatible, I
have not been able to find any evidence to the contrary. If they are not
compatible with one another, it would be reasonable to assume that because all
Y400/500 models have the necessary hardware to support SLI via the ultrabay,
the HD 4000 may have been disabled in the BIOS either to prevent potential
instability in systems using both Optimus and SLI.

 


If this is true... Why not let the user decide SLI or WIDI?

I think this is some improvement that Lenovo must give the user.

 

 

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8 Posts

12-29-2012

California

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Re: Wireless Display (WIDI) issue on ideapad Y500

2013-01-13, 3:34 AM

as i posted earlier, i have both the y500 and y580.  on my y580, widi works flawlessly and it is running windows 8.  windows 8 came preinstalled on the laptop.  so i am not sure if windows 8 is the problem.  on the y580 i can go into Nvidia Control Panel and can choose if i want to use the HD4000 gpu or Nvidia Geforce 660 gpu or i can leave it on Automatic (letting the system determine what is best).  i do not see this menu option on my y500.

 

i have been following this forum for a while and scouring the net for an answer. my advice to anyone who wants to listen , is to return the y500 and get the y580.  i've had no problems, zero, with my y580. i even installed Far Cry 3 on both systems to see if there were any difference and if there is, i cannot tell.

 

in my humble opinion the y580 is a better machine. the red keyboard was neat in the beginning but i seem to like the white/blue color of the y580.  i was gonna run duo gpu in the ultrabay of the y500 but i am having a hard time finding a store that carries it. probably have to order online. and i paid $1200 with insurance for the top of the line Y580 whereas my girlfriend paid well over $1300 for the y500. so for those who can, try to get the y580. at least the widi works.

 

and for those wondering why i don't return?  it was Xmas gift from girlfriend

 

 

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