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51 Posts

12-04-2009

USA

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Re: T400s random shutdowns

2009-12-18, 8:49 AM

 


wrote:

Went back to 1855 and have had no shutdowns since. Though the Video display settings interface isn't as good as the later versions. Can someone confirm that 1892 works too? Is the interface good? I often switch between Display cloning, one screen and expanded desktop, and preferred the controls in the later version.

 

Thanks


 

I have 1892, no shutdowns for 2 weeks, but its the same interface as 1855 I believe. It not that fancy one you get with the newer drivers

 

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17 Posts

09-04-2008

New York

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Re: T400s random shutdowns

2009-12-18, 12:39 PM

It's certainly not worth it to have a fancier driver interface and a higher WEI score (i think mine went from 3.4 to 3.9) if you're going to have the random shutdowns!

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5 Posts

12-08-2009

Exeter, UK

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Re: T400s random shutdowns

2009-12-18, 15:57 PM

It has now been 10 days since I updated the bios and downgraded the gfx card drivers.

 

I had no shutdowns or video degradation since.

 

I use my T400s about eight to ten hours per day.  All the specs are in my previous post.

 

Cheers,

David

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51 Posts

12-04-2009

USA

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Re: T400s random shutdowns

2009-12-18, 18:37 PM

 


wrote:

It's certainly not worth it to have a fancier driver interface and a higher WEI score (i think mine went from 3.4 to 3.9) if you're going to have the random shutdowns!


 

 

so Lenovo "unEnhanced" your "Experience", is what your saying!? LOL   <------------bad joke

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21 Posts

10-22-2009

San Diego

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Re: T400s random shutdowns

2009-12-18, 23:02 PM

 


wrote:

 


wrote:

 

I don't know if I ever had that version of the video driver. I had .1872 until today when I updated to .1986. Within two hours I had my latest random shutdown. Video BIOS (for what that's worth - and I think nothing at this point) is 1736.1.


 

Try 1855 or 1892 as mentioned before,  and you will most likely not have anymore random shutdowns.

 


 

 

I tried downgrading to Intel video driver 1855, but I got corrupted video when I did so. When I tried to upgrade again to 1986, it wouldn't do it properly. I had to call Lenovo customer support who had me re-instate my computer from yesterday's image, and I was able to get 1986 again and remove the corrupted video.

 

While troubleshooting this with two Lenovo techs, I of course discussed the random shutdown problem. The first had me try some random tests regarding the hard drive and the second suggested I should get the system board replaced. That may be my next step.

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162 Posts

10-21-2009

Netherlands, Hilversum

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Re: T400s random shutdowns

2009-12-19, 7:36 AM

 


wrote:

 

While troubleshooting this with two Lenovo techs, I of course discussed the random shutdown problem. The first had me try some random tests regarding the hard drive and the second suggested I should get the system board replaced. That may be my next step.


 

 

Really i wouldn't go for that if i were you. I have had several experiences with this kind of advice (not Lenovo's btw).1st, i am convinced that changing your mobo won't fix your problems. Read this already looooooong thread. Lot's of people have gone that path and the second or third new mobo behaves the same. And that's logical, because it really seems related to the video driver (and/or bios) at the moment. So as long as you load that again on the new mobo, the problems get back.

 

Such kind of advice (replace mobo) is, in my opinion and in most cases, given because the support engineer doesn't have a clue anymore what he can do to help you. It's the same level of advice as a help desk that tells you to re-install your OS if you have some kind of problem (like a wrongly configured proxy server or so).

 

Also with Dell i had the experience that they replace the mobo with refurbished mobo's that have had repair or something. With my Dell M1330, which had a misdesigned NVIDIA chipset on the mobo, they replaced the mobo with another one (refurbished one i was told when it broke again) that had exactly the same faulty chipset. They just try before they offer you a real solution.In the meanwhile you get stuck with the same problems.

 

In your case i would certainly not send back you laptop and really try to upgrade your BIOS to 1.11 and downgrade the video driver to 1855, Some page before i have posted a picture showing the config screen where you can do that. When you downgrade the driver your screen will shake, look corrupted, and fall back to VGA mode (which is normal!). Then reboot and install the older 1855 driver (download it before and put the executable on your desktop for example so you can find it easilly when you have rebooted into VGA mode. Then after re-install reboot again and your screen should get back to normal.I really think that is better then sending back the laptop since the problem really seems to be related to the 1968 video driver (maybe in combination with older BIOS versions but i think not) and lots of people already reported (including me) that this fixed their shutdown (and video distortion) problems. I am now one month without shutdowns and use the computer over 8 hours a day as well!

 

Good luck!

 

--

jan

--- Lenovo Thinkpad t440p (20AN-CT01WW) + SAMSUNG MZ7TD512HAGM-000L1 SSD + 16G SDRAM + 14.0FHD 1920x1080 ---
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260 Posts

07-03-2009

United States of America

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Re: T400s random shutdowns

2009-12-19, 9:38 AM

I second houtsma.

 

I think Lenovo technicians who answer phones cannot really help on this tough, yet random, issue. Considering their training and work protocols, it is not surprising that they just suggest standard trouble-shooting procedures.

 

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64 Posts

09-29-2009

Australia

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Re: T400s random shutdowns

2009-12-19, 13:02 PM

Hi All,

 

Just a quick note to let you know i've added another column to the spreadsheet to capture "No Sound" cases as well as the shutdowns. As of yesterday, I now have no sound from the left speaker, more info. here: http://forums.lenovo.com/t5/Windows-7-Discussion/T400s-No-Sound/m-p/185834#M6488

 

Just as the shutdowns stop, another problem surfaces...brilliant! :smileysad:

 

-Steve

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3 Posts

10-24-2009

toronto

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Re: T400s random shutdowns

2009-12-20, 0:48 AM

I just got my t400s and am experiencing this issue.  One thing ...  If I put my thumb over the web cam it goes to sleep.  Is that perhaps built in behaviour?

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26 Posts

10-27-2009

Atlanta

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  • Message 290 of 613

Re: T400s random shutdowns

2009-12-22, 2:02 AM

Well, yet another T-400s random shutdown a few moments ago.  This the first in several days, after a series of 2-3/day experiences last week.

 

Five months on, willing, constructive volunteers on this site are adding fields to spreadsheets to try to help/encourage Lenovo to address this issue.  Five months on, Lenovo engineering remains silent - while Lenovo tech support recommends motherboard replacements - casting at straws vs. offering an engineering solution.

 

Is it time to abandon this platform?  Speaking personally, I'm very close.

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