Welcome to our peer-to-peer forums, where owners help owners. Need help now? Visit eSupport here.

English Community

ThinkPad NotebooksThinkPad: T400 / T500 and newer T series Laptops
All Forum Topics
Options

3 Posts

12-28-2009

Massachusetts

5 Signins

95 Page Views

  • Posts: 3
  • Registered: ‎12-28-2009
  • Location: Massachusetts
  • Views: 95
  • Message 1 of 5

Monitor flickering with T500 with accell dual-link-dp adapter

2010-01-27, 18:20 PM

I have an HP LP3065 30 inch external monitor, 2560x1600, that I'd like to drive off my T500. I am now on my second accell display-port to dual link dvi adapter and am still getting periodic blackouts of the monitor which last less than a second. At first I thought it was due to insufficient power to the adapter provided through the usb port, as has been reported in various places, so I got a high powered usb hub with ac adapter. Didn't help. Accell said it must be a lenovo problem and that they had "reported" the issue to lenovo. I exchanged the adapter for a new one on the off chance it might be a manufacturing issue but the new one is just the same. Has anyone gotten this configuration to work properly? If so, what dp-dual link dvi adapter are you using? Any special adjustments to your settings? I have the ATI Mobility Radeon 3650 card. All drivers are current as is the BIOS.

Reply
Answer
Options

3 Posts

12-28-2009

Massachusetts

5 Signins

95 Page Views

  • Posts: 3
  • Registered: ‎12-28-2009
  • Location: Massachusetts
  • Views: 95

Re: Monitor flickering with T500 with accell dual-link-dp adapter

2010-02-08, 15:27 PM

Thanks for the input. I replaced the accell adapter with an HP displayport-dual link adapter and it now works just fine (no flickering) with my HP LP3065. So the adapter itself was really the issue, not the monitor or drivers.

Reply

Replies(4)
Options

1041 Posts

03-10-2009

Michigan

1453 Signins

21182 Page Views

  • Posts: 1041
  • Registered: ‎03-10-2009
  • Location: Michigan
  • Views: 21182
  • Message 2 of 5

Re: Monitor flickering with T500 with accell dual-link-dp adapter

2010-02-03, 12:58 PM

Hi greigite,

 

Welcome to the Lenovo forum! :smileyhappy:

 

Is the Accell B087B-002B the adapter you are using? I haven't used such an adaper, but it looks very nice. It gets excellent reviews on Amazon, though at least one reviewer recommended connecting it to a powered USB hub to eliminate display flickering. You've done that already -- suppose you could try a different powered USB hub on the off chance that the first one is defective, but that seems unlikely.

 

You might have a look at the power-saving features of your ATI video card. I think you can right-click on your desktop to start "ATI Catalyst Control Center" (if not, think you can find it in the Start menu). One of the panels of CCC lets you adjust power saving profiles, and whether to reduce the vertical refresh rate below the usual 60 Hz. You could try turning the vertical refresh rate reduction feature off, and maybe try some different power-saving profiles.

 

How often does the flickering occur? Like, once every 20 minutes, or less often?

 

Best regards,

Frank

---------

Results of Your Ideal Business-Class Laptop survey, concluded 2009-07-29.

Did someone help you?
Say thanks! with a kudo.
Even better: Pay it forward, help someone else. :smileyhappy:
Reply
Options

21115 Posts

12-20-2008

Australia, Melbourne

20622 Signins

444194 Page Views

  • Posts: 21115
  • Registered: ‎12-20-2008
  • Location: Australia, Melbourne
  • Views: 444194
  • Message 3 of 5

Re: Monitor flickering with T500 with accell dual-link-dp adapter

2010-02-03, 14:06 PM

have you considered that the monitor itself maybe the culprit of your problem? do you have another computer that you can test your LCD on?

Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
Reply
Answer
Options

3 Posts

12-28-2009

Massachusetts

5 Signins

95 Page Views

  • Posts: 3
  • Registered: ‎12-28-2009
  • Location: Massachusetts
  • Views: 95
  • Message 4 of 5

Re: Monitor flickering with T500 with accell dual-link-dp adapter

2010-02-08, 15:27 PM

Thanks for the input. I replaced the accell adapter with an HP displayport-dual link adapter and it now works just fine (no flickering) with my HP LP3065. So the adapter itself was really the issue, not the monitor or drivers.

0 person found this solution to be helpful.

This helped me too

Reply
Options

21115 Posts

12-20-2008

Australia, Melbourne

20622 Signins

444194 Page Views

  • Posts: 21115
  • Registered: ‎12-20-2008
  • Location: Australia, Melbourne
  • Views: 444194
  • Message 5 of 5

Re: Monitor flickering with T500 with accell dual-link-dp adapter

2010-02-09, 6:08 AM

thanks for coming back and sharing the information. 

Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete

X

No, I don’t want to share ideas Yes, I agree to these terms