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Moderator
Moderator

Re: XPS 7590 HDMI not working after sleep

Hi there !

 

Please share the system service tag through the Private message, we will be glad to assist you.

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1 Copper

Re: XPS 7590 HDMI not working after sleep

Hi,

I have the same issue with my Precision 5540. I found out, that it might be connected with the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\CsEnabled registry setting. I had this set to 0 in order to get more control over Power settings. When setting it back to 1 the problem disappeared. Setting it back to 0 let the problem appear again after 3 days.

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