mattfox
1 Copper

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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To add to this, another interim solution is to remove the battery from the laptop if you can leave the laptop plugged in all the time.  I wish Dell would figure this out.  I manage 14 of these machines.  

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rvillafu
1 Copper

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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Gentlemen, any news on the subject?...  Is DELL pursuing this annoying and nasty issue?...

I have to constantly unplug and plug the power into the laptop to avoid flickering issues with an HDMI monitor.  Is there some sort of utility to limit the battery from charging to a 100%?...  I mean, if the battery stayed at 98% charge, the problem would be solved...

Anyone there listening?...

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rvillafu
1 Copper

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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Think I Got It...

Download from DELL the DELL Command Power Manager.  Run. Under Battery Information > Settings, chose Primarily AC Use...

And the battery never charges fully, so you never see 100% and the flickering stops 🙂

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MPSMary
1 Copper

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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 This is my Power Management screen but I am confused as to what I am setting

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Sv K
1 Copper

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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Dell 6440: Bios A13, Intel(R) HD Graphics 4600, AMD Radeon HD 8690M.

This solutions can'l solve problem in a general case.

Change charge mode and in this work day - all ok. OFF notebook and in a few hours later ON it for work - and HDMI connection with problems again.

Some test cases:

Primarily AC Use: problem

Custom mode: 50% start ...90% stop charge (~70% charged level) - problem

Express mode: problem

Some correlation from time after ON:

~ 1....15 min - often (up 3..5 mins between re-connection HDMI)

~ 15.....30 min - rare (up to 10 mins between re-connections)

In charging state (while charge lelev less than 100% ) - no problem, after 100% - again problem

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Sv K
1 Copper

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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Dell 6440:

  • Bios A13,
  • Intel(R) HD Graphics 4600,
  • AMD Radeon HD 8690M.

This solutions can'l solve problem in a general case.

Change charge mode and in this work day - all ok. OFF notebook and in a few hours later ON it for work - and HDMI connection with problems again.

Some test cases:

  • Primarily AC Use: problem
  • Custom mode: 50% start ...90% stop charge (~70% charged level) - problem
  • Express mode: problem

Some correlation from time after ON:

  • ~ 1....15 min - often (up 3..5 mins between re-connection HDMI)
  • ~ 15.....30 min - rare (up to 10 mins between re-connections)
  • In charging state (while charge lelev less than 100% ) - no problem, after 100% - again problem
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emdok33
1 Copper

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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I have the exact same issues with my E6440 and the HDMI port!  Dell has not fixed nor acknowledged this issue. Very disappointing.

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emdok33
1 Copper

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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Dell is currently manufacturing main board replacements to fix this issue. They will be available at the end of July. Please make sure you have a current support subscription and contact support to be eligible for the replacement. 

livelace
2 Bronze

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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Hi folks, try to replace "Express Charge" to "Standard Charge".

PS. Primarily AC doesn't help.

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DavidMc0
1 Copper

RE: Latitude E6440 display blink when connect to external monitor via hdmi to VGA converter

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Has anyone found a solution to this that works?

I've tried everything in this thread, and so far nothing has solved the issue.

Can Dell support please summarise the current state of affairs with this, and if there is currently no known solution, please confirm this?

Any fix would be much appreciated, though I guess it's a hardware issue that would require a new motherboard or similar.

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