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8980 Posts

01-13-2008

United States of America

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-17, 15:40 PM

Interesting.  I suppose a bandaid is better than an open wound :)

 

Does it cause a problem if you let it run (automatically) on both resume from hibernation and standby?

 

Thanks for this.  I wonder why it's beyond Lenovo/ATI-AMD/Intel?  Some kind of AMD vs Intel <bleeping> match?

 

Z.


The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc.


The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored - questions and answers belong in the forum so that others may contribute and benefit. ... GeezBlog

 

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9644 Posts

12-27-2009

Canada

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-17, 16:09 PM
Having it run on hibernation would be unnecessary flickering and delay. Running the above tool simply automates switching to and from discrete graphics, with all of the associated flickering.

I figure I can get it to run on resume from only Standby if Standby is incurred from a specific batch file that chains this one to load after.

Supposedly this will work:

@echo off
Rundll32.exe PowrProf.dll,SetSuspendState
ping localhost -n 3 > nul
ECHO Switching to discrete graphics...
"C:\Program Files\ThinkPad\Utilities\PWMUIAux.exe" /HighPerformanceGpu /ShowDialog
TIMEOUT 7
ECHO Switching to integrated graphics...
"C:\Program Files\ThinkPad\Utilities\PWMUIAux.exe" /EnergySavingGpu /ShowDialog

Whereby it sends the machine into standby, sets up a self-ping based delay which presumably won't finish before the machine enters standby, then executes the necessary switching commands.

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
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89 Posts

12-04-2008

Germany

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-17, 19:29 PM

Hi,

 

you could also write a small program, that reacts to Win32_PowerManagementEvent WMI events.

However, I suppose the screen flickering already mentioned would be quite annoying. Furthermore, using the current driver version my T400 sometimes froze during switches which would be extremely painful if they are started automatically ; )

 

Greetz!

M.T.

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9644 Posts

12-27-2009

Canada

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-17, 21:17 PM

I'm fairly certain that RMClock polls the same API to check for power state changes.The MSDN article doesn't specify which return values are for standby itself, so I assume it can't differentiate between Hibernate and Standby either. Alternatively, I could get a program to query the ACPI controller for sensor values; if it provides a value for GPU (TPFC does this after resuming from standby) then it would be able to differentiate standby and hibernate.


W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
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17 Posts

08-18-2009

Austria

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-22, 9:18 AM

Happy Birthday Switchable Graphics Problems!!

 

It's so unbelievable that Lenovo can't manage to solve this problem within ONE YEAR!!! This is really premium Service.

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43 Posts

11-18-2009

Germany

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-22, 10:28 AM

I agree!

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9644 Posts

12-27-2009

Canada

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-22, 12:34 PM

LOL Happy Birthday indeed. It's surprising that despite the number of users on this forum that no one seems to be willing to contribute their expert knowledge (read: ability to write drivers and stuff like that). There's gotta be some pro's out there!


W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
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237 Posts

10-18-2008

Amsterdam

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-22, 12:56 PM

I think all has been said about the topic and I think Lenovo is being blamed for good reasons. But most of all, I guess, we're interested in a new driver package. 

 

Hence: @JameZ or @Mark_Lenovo: By when can we expect to get working drivers? What is Lenovo doing to ensure that the driver release is not delayed forever? What do you learn from the history of problematic driver support for ATI/Intel switchable graphics (thematic link for "history is repeating": http://www.youtube.com/watch?v=15QngStkp-E)? How do you make sure that the switchable graphics-products from Lenovo receive an up-to-date driver support after, say, 3 years since product launch? Don't you think that you messed up and that you owe us something? 

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35 Posts

09-02-2008

Singapore

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-22, 22:26 PM

Catalyst 10.10 is now out... [Guru3D]

https://a248.e.akamai.net/f/674/9206/0/www2.ati.com/drivers/mobile/10-10_mobility_vista_win7_64_dd_ccc_ocl.exe

https://a248.e.akamai.net/f/674/9206/0/www2.ati.com/drivers/mobile/10-10_mobility_vista_win7_32_dd_ccc_ocl.exe

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71 Posts

03-12-2009

Ecuador

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Re: R400/T400/T500/W500: Switchable graphics issues with Win 7

2010-10-23, 1:37 AM

I just installed the Catalysyt 10.10 drivers... put my computer to sleep (on integrated) and when I woke it up, the ATI card was no longer powered! Could the bug be gone??? I tried putting my computer to sleep and waking it up several times and the ATI card didn't show up in HWMonitor like it did before with the buggy drivers.

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