E420s switchable graphics with opengl

[paralityk]

That's what maximum performance does (on AC), removes all steps so when CPU is idle it's at lowest but when there is any load it goes and stays at max no matter what.

It's just a matter of how CPU responds to windows min. and max. processor state (in advanced power settings)

though it's always best to set min. to 0 and max to 100 this makes sure all dynamic power saving features will work - you won't lose any performance and you will save power pretty much as with any other setting (you can force lowest frequency all the time but since sometimes this can lead to task taking a long time to finish you may actually use more power :] )

[chipso25]

Hi, 

I have thinkpad edge e320 witch switchable graphics.

As this thread is soooooo long, I have one question:

what exactly should I install so my ntb graphic will run smoothly? which drivers, updates etc.

Thanks a lot

[paralityk]

LOL, first page right at the top, "related links"

[mcf_philo]

I've figured out the source of the problem. It's related to the driver of the Intel HD Graphic 3000. I found that the lag and screen tearing of Flash Player is gone when I (i) unintall the driver of the AMD Radeon HD 6630M, and (ii) when i use the 8.15.10.2559 Intel Graphic Accelator driver (offered by Intel, but not Lenovo) for my Intel HD card.

I'm stuck in between now, because once I install the Lenovo-AMD switchable graphic driver  8.840.7.8000, it'll also modify the driver of the Intel graphic and make it into 8.840.7.8000 too. I've tried if I can use Intel 8.15.10.2559 driver for my Intel card and Lenovo 8.840.7.8000 driver for the AMD card respectively, but it failed. Either it'll automatically remove the Lenovo AMD-driver of BOTH cards (which means uninstalling the driver of the AMD card) when I install the Intel driver, or the Lenovo-AMD driver will automatically cover up the Intel driver.

So is it possible for me to use the Intel driver with the Lenovo AMD driver?

p.s. lag and screen delay still appears when i remove the driver of the AMD card and use the Lenovo offered 8.15.10.2509 driver for the Intel card.

[Benik3]

You can update driver in Package from lenovo (there are two folder), but problem is, that these drivers will lost digital certificate.

So you can also use Leshcat catalyst http://leshcat.blogspot.com/2011/11/multix-catalyst-1111a-unifl-for.html

You could to try also manual update from device manager...

[mcf_philo]

Thank you for your link. But may I know is it an official update patch/ driver made by Lenovo, or is it made by the owner of the Blog? I've not installed the drivers offered in that site, but it looks attractive  

[staringatstars]

I really advice you to try it out. As far as i am aware, noone is doing such stuff.

Guy rocks, but please read FAQ before starting. Its pretty simple though.

[mcf_philo]

I've installed that update patch, but i think there're compatibility problem and it fails. So will Lenovo provide newer drivers for the Switchable Graphics that supports/ uses Intel HD Graphic Driver 8.15.10.2559?

[Benik3]

It´s made by the bloger. It has the problem which I discribed - drivers are not digitaly signed, but works OK

I have the lastest 11.11a installed. Also I recommend install 11.11 CAP2 (catalyst aplication profiles)...

Also I tested yesterday manual update of Intel drivers and it doesn´t work. It broke switching of GC....

Also try clean installation! (use driversweeper in safe mode before installing of new drivers)

[mcf_philo]

Ya, when I install the latest Intel Graphic driver, the graphic card switch function broke.
When I install the graphic card switch function, the latest Intel Graphic driver broke, and so does Flash Player.