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32 Posts

05-16-2008

Atlanta, GA

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Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2009-08-29, 23:42 PM

Pretty much no matter what I do - I continue to see bizarre "artificats" on my screen (both integrated display and when I use an external monitor).  There isn't a particular activity that causes it though switching windows exacerbates the problem.  I tried using the Win 7 pre-installed driver and Intel's latest RTM drivers (Intel® Graphics Media Accelerator Driver for Windows 7 Release Candidate), and it made no difference.  

 

What I see on the screen is as if a DVI connection is going bad, but I can simply compress/maximize the active window and the screen debris immediately clears up.  I have oodles of free memory and don't have many applications open at any given time. If I take a screen shot when this occurs, the screen debris shows up there too, so it's probably not the output device but something going on with the video card itself.

 

I've disabled Aero graphics until someone can help  me understand what's going on.  I shouldn't have to do this on such a new laptop!  What's the deal here?

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32 Posts

05-16-2008

Atlanta, GA

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Re: Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2009-09-03, 16:41 PM

Does anyone have any thoughts about this?  I don't like resorting to disabling Aero on a brand new machine!

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2 Posts

02-01-2010

United States

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Re: Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2010-02-02, 1:07 AM

I realize this is a bit of an old thread, but I am also having this issue, but with Windows 7 Pro (clean install). I have tried every driver I could find but no change. Does anyone have a resolution for this? I know of at least one other identical machine that has the same issue.

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20 Posts

08-29-2009

GB

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Re: Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2010-02-02, 7:29 AM

Try disabling VT-d in BIOS. I have the same issue on a T500 and disabling VT-d works around the problem.

As a matter of interest how much memory do you have installed, and are you using a graphics accelerator  or discrete video card?

 

Steve

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994 Posts

03-10-2009

Michigan

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Re: Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2010-02-02, 13:50 PM

Hi roadmr,

 

Welcome to the Lenovo forum! :smileyhappy:

 

At least some (and maybe all) versions of the Intel graphics driver* Others have reported that ThinkPads with X4500MHD Intel graphics have problems when 2 memory modules of different size are installed. For example, people who were having trouble with 3GB RAM installed (2GB + 1GB DIMMs) fixed the problem by going to matched DIMMs, 2GB + 2GB = 4GB.

 

Best regards,

Frank

 

* EDIT: Back off blaming Intel graphics driver for the problem -- I don't know that for sure. Just that others have solved similar problems by going to symmetric RAM configurations.

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20 Posts

08-29-2009

GB

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  • Message 6 of 13

Re: Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2010-02-02, 17:19 PM

Frank,

 

May I ask what your information source is with regard to this problem? Do Intel recognise it, for example?

 

Steve

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994 Posts

03-10-2009

Michigan

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  • Message 7 of 13

Re: Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2010-02-02, 17:25 PM

Hi Steve,

 

Information source is my own moldy memory of posts in this and other forums. :smileywink:

I don't know if Intel recognizes it. (And to be honest, I don't know if it affects products other than ThinkPads... suspect that it does, though.)

 

I've edited my previous post to try to sound less authoritative. :smileywink:

 

Thanks,

Frank

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7634 Posts

11-19-2007

US

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  • Message 8 of 13

Re: Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2010-02-02, 18:23 PM

All,

 

We have released a formal tip on this which can be found on our support site.

 

Visual corruption - ThinkPad R400, R500, T400, T400s, T500, W500, X200, X200s, X200 Tablet, X301

Symptom

 

 

Visual corruption is observed on the screen. It tends to start out isolated to a given application window, but then quickly starts appearing on all of the other application windows, and the desktop. The corruption will typically appear as garbled text or scrambled images.

 

 


Affected configurations
The following configuration:
Microsoft Windows Vista or Windows 7 (either 32-bit or 64-bit)
Intel Virtualization Technology for Directed-IO (VT-d) is enabled in the BIOS setup utility.
There are two memory DIMMs in the system, and they have a different size (e.g., 2GB and 1GB).
On any of the following systems:
ThinkPad R400(*1), R500(*2)
ThinkPad T400(*1), T400s, T500(*1)
ThinkPad W500(*1)
ThinkPad X200, X200s, X200 Tablet, X301
*1: For models with switchable graphics, the system must be in integrated graphics mode to see the failure.
*2: Models with integrated graphics only.

 

Workaround


Option 1:
Disable Virtualization Technology for Directed-IO (VT-d). This can be done in the BIOS setup utility. When the system is first booting (during POST), press F1 to enter the setup utility. Then enter the Config menu, and the CPU submenu. Change VT-d to disabled.


Option 2:
Make sure that there is only one memory DIMM in the system.


Option 3:
Make sure that the two memory DIMMs in the system are of equal size. For example, both are 2GB.
About VT-d
Virtualization Technology for Directed-IO (VT-d) is a hardware assist for virtualizing device IO (primary DMA and interrupts). VT-d is not required to support running a virtual machine (to Lenovo's knowledge at this time). Some VMMs do require that hardware assist for virtualization be enabled, but this is a separate setting from VT-d. In the same BIOS setup screen, there is a setting called Virtualization Technology, which is the more commonly used feature.
Here is a link to Intel's site describing Vt-d.

 

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2 Posts

02-01-2010

United States

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  • Message 9 of 13

Re: Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2010-02-02, 20:37 PM

Option 1 has seemed to resolve my issue. I am also one of those users with 3MB or RAM (one 2MB Dimm and one 1MB Dimm). I may try that solution at a later time, but for now disabling Vt-d has me running clearly again. Thank you!

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3 Posts

02-22-2010

czech

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  • Message 10 of 13

Re: Bizarre screen artifacts on R400 (Integrated Graphics) running Win 7 RTM

2010-02-22, 11:28 AM

Still having this issue on T400s with 2x2gb ram, Win 7 x32, latest graphic driver from Intel and Virtualization in bios  disabled. It appears after waking up from longer hibernation (minutes). It is probably driver issue, because it doesn’t happen during the post and boot, but in Win 7, after the graphic driver is loaded into the memory.

 

Any suggestion what to do next?

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