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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

2010-10-25, 12:14 PM
Apparently, you can get this version (10.10) to work by simply installing it over the existing Lenovo switchable drivers.

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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10 Posts

04-11-2010

Germany

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

2010-10-25, 20:03 PM

okay. i also tried 10.10 on my t400. after sleep mode tpfancontrol shows me the discrete graphic for about 3 seconds and then it disappears. so this is definetly an improvement. no need for manual switching.

 

but most of the time i'm using the intel graphics. only when i need additional graphics power i switch to the discrete. i guess most of the users do so. so an update of the intel driver is way more important!

has anyone tried to update the intel driver too, after having installed catalyst 10.10? i remember the last attempts ended in not having the switchable functionality anymore.

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204 Posts

03-31-2008

USA

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

2010-10-25, 20:08 PM

 

@kekiman - installing intel drivers fails for me with the following error: 

 

This computer does not meet the minimum requirements for installing the software.
Setup will exit.

 

other have had this error as well (e.g. http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T400-Installing-Intel-Graphics-Driver-fails/m-p/113921).  i'm interested to see if anyone else is having it too.

 

allie

 

t400 2764-CTO

Win 7 Pro x64

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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

2010-10-25, 21:01 PM
I've tried forcing the integrated graphics to use a newer version, but that resulted in a loss of switchable graphics.

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

2010-10-27, 14:09 PM

@Mark - any (semi)official Statement on the release Date?

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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

2010-10-28, 7:08 AM

You still believe that there will ever be a new driver? I don't share you're optimism.

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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

2010-10-28, 7:41 AM

What do you expect? - Most of the problems in the current driver package are only affecting a small group of private ThinkPad owners. Most users use ThinkPads only for a very short time on battery. But this is to say that business contracts are not at stake. Simplifying a bit, this means that no substantial amount of money is at stake. Now, put your corporate hat on and ask yourself the question: Should I ask my boss to assign extra financial and personal resources to get the problem fixed quickly?

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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

2010-10-28, 10:14 AM

That's exactly what I mean. Lenovo doesn't loose any money through this bug so they don't have any reason to bother at all. The affected models aren't even sold any more.

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43 Posts

01-17-2009

Slovenia

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

2010-10-28, 15:14 PM

Hello! Despite second thoughts did install 10.10 drivers over original.

 

Screen went crazy and stayed black, so rebooted wia keyboard. After boot my brightness shortcuts are gone, too. I can switch between Intel/Ati and with Intel brightness still work.

 

Catalyst center work, sort of -- apply and discard buttons constantly blink and I can't change brightness -- moving slider have no effect.

 

I also experienced some display obstacles -- like on screenshot (here is only part, but whole screen was like this):

 

http://img261.imageshack.us/img261/7604/capture1k.png

 

Dont'know what causes this.

 

In any case, I am reverting back to original drivers (fingers crossed!)

 

Cheers,

b.

 

PS: @T500 -- 2056 VL1, my main workhorse :P

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25 Posts

06-20-2010

United States of America

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

2010-10-28, 19:57 PM

The idea that business customers don't use T400s for significant periods of time on battery is somewhat laughable to me. This is the go-to laptop for a lot of business professionals like lawyers, system administrators, engineers, and journalists. These people absolutely do use their machines on-the-go, including in places like cars, trains, and airplanes where there isn't necessarily easily-accessible power.

 

Lenovo sells no fewer than 3 different battery sizes for the T400/T500 series (4/6/9 cell) and I believe the 7-cell is still compatible (although it's been discontinued now). There's also the UltraBay battery on top of that.

 

The fact is that Lenovo wouldn't sell nearly this many different batteries if it didn't think customers used them. The 9-cell in particular is ridiculously large - the only reason you would buy that (and the only reason Lenovo would make it) is for absurdly long battery life.

 

I generally dislike the way that this has been handled by Lenovo - 12+ months is too long to wait for such a serious issue, even if there is a workaround.

 

But the idea that a fix isn't coming is stupid. The 10.10 Catalyst drivers *do* fix the issue once you get them installed. It's hard to install them and you have to spend a lot of time screwing with things to make them work, but the ATI GPU does shut off and power usage is the same as it is with Intel-only selected in the BIOS.

 

The only reason that I can see for this issue to be fixed in the 10.10 Catalyst drivers is that Lenovo specifically requested a fix from AMD/ATI. The ATI/Intel switchable graphics is an esoteric technology that's only used in a very few machines.

 

I'm guessing that Lenovo will have updated drivers out within a month or so. Late, yes - but not never.

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