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45 Posts

01-25-2008

Superior, WI

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  • Location: Superior, WI
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  • Message 11 of 17

Re: Blank screen after awaking from sleep. [T400]

2010-02-07, 15:22 PM

Has this issue been resolved?? I too have this problem with my T400 unit and Windows 7.

I just updated the BIOS to the lasest from this January, but that didn't help. When is there going to be a new ATI-Hybrid driver released? I'm sure that would probably fix it. Any thoughts?

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1 Posts

03-04-2010

Chile

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  • Registered: ‎03-04-2010
  • Location: Chile
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  • Message 12 of 17

Re: Blank screen after awaking from sleep. [T400]

2010-03-04, 18:35 PM

i have the same problem with a netbook but from another computer brand. but i can add some data in order to solve the problem, i did not solve the problem though, but i think the problem could be the RAM memory or its management by the diferent OS:

 

Before the problem the netbook had:

 

- Windows XP SP3

- 1 Gb DDR2 ram 667Mhz

- No updatings made yet

 

 

When the problem occurs:

 

- Same OS

- Same RAM

- An update of the OS was made

- Firefox with several web pages open (like eight)

- Word or messenger on, or even none of them on

- it has been caused by closing the lid, automatic sleep because of inactivity, or by the fn+sleep function

 

What was made to recover the situation

 

- Force the laptop to turn off, had no choice

 

What has been tried and didnt work:

 

- Taking the baterry away and conect the AC plug. (while the black screen is present)

- Also plugged a LCD monitor (while the black screen is present)

- The official technical support changed twice the motherboard and the error still occurs

- Formated and re install the original OS (made by official technical support twice)

- install a new driver of the video card

 

other data:

 

- girlfriend with the same product same configuration has no problem, laptops were aquiered same date, same store, etc

- i read that someone changed his RAM memory and the problem was solved

 

What i will do:

 

- update chipset drivers

- adquiere a new RAM memory

 

I hope this data could help the most experienced ingeneers the solve this problem, im a biologist and computer hardware is not my field.

 

 

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45 Posts

01-25-2008

Superior, WI

70 Signins

796 Page Views

  • Posts: 45
  • Registered: ‎01-25-2008
  • Location: Superior, WI
  • Views: 796
  • Message 13 of 17

Re: Blank screen after awaking from sleep. [T400]

2010-03-12, 14:44 PM

I should mention I believe I figured out the problem. When I go into the BIOS and make the ATI video card the "ONLY" video card to use, or in other words disable switchable graphics, it works fine. I never had the problem since.

I believe it has something to do with the video card driver or the BIOS for that matter. But for now that is a good solution that has worked for me.

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1 Posts

05-13-2010

UK

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  • Registered: ‎05-13-2010
  • Location: UK
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  • Message 14 of 17

Re: Blank screen after awaking from sleep. [T400]

2010-05-13, 11:08 AM

I have a similar problem. Computer seems to be on but blank screen. Tried fn hold for ten seconds, fn + f4, re start holding f1 but nothing seems to work??? Any views / help appreciated.

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30 Posts

11-20-2009

Portugal

122 Signins

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  • Posts: 30
  • Registered: ‎11-20-2009
  • Location: Portugal
  • Views: 285
  • Message 15 of 17

Re: Blank screen after awaking from sleep. [T400]

2010-12-05, 15:07 PM

Hi threre,

 

any solution on this problem? If I close the cover (monitor) and let it be in standby (for longer time ?!?), after it doesn't display anything, where I have to Fn+F4 again, to bring it to standby and awke it one more time, until it displays anything.

 

Any suggestions what the problem coudl be ?

 

Regards,

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9644 Posts

12-27-2009

Canada

3313 Signins

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  • Posts: 9644
  • Registered: ‎12-27-2009
  • Location: Canada
  • Views: 95283
  • Message 16 of 17

Re: Blank screen after awaking from sleep. [T400]

2010-12-05, 15:32 PM
Are all drivers up to date?

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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30 Posts

11-20-2009

Portugal

122 Signins

285 Page Views

  • Posts: 30
  • Registered: ‎11-20-2009
  • Location: Portugal
  • Views: 285
  • Message 17 of 17

Re: Blank screen after awaking from sleep. [T400]

2010-12-05, 15:37 PM
How do you check if all drivers are up to date ? (But I guess many of the main ones are )
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