Topic Title: Device issues powering on/off monitor
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Created On: 02/19/2014 02:54 PM
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 02/19/2014 02:54 PM
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jcwild
Peon

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Joined: 08/27/2013

I have a Dell UP3214Q monitor.  When I press the power button on the monitor (running at 3840x2160 @ 60Hz on an AMD Radeon HD 7990 using Catalyst 13.12), it removes the monitor from the list in Device Manager.  

This has the effect of re-arranging my displays, turning two 20" portrait displays to landscape, and moving anything that was on the UP3214Q onto the other two monitors.  

As soon as I turn the UP3214Q back on, it re-appears in Device Manager, and the 20" monitors change back to portrait mode.  I then have to manually move all my windows back to their correct locations.  It's as though turning off the monitor at the button is the equivalent of pulling out the cable from the PC.

Video of issue here: http://www.youtube.com/watch?feature=player_embedded&v=Ekzf_sW1MMg

I raised this as an issue on the Dell forum here: http://en.community.dell.com/support-forums/peripherals/f/3529/p/19543624/20519001.aspx

However, Dell technical support say it is a problem with the graphics card.  Is this likely to be an issue that can be fixed by a driver update?

 03/03/2014 06:42 AM
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jcwild
Peon

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Anyone?  Where do we raise issues with AMD technical support?

 03/03/2014 09:44 AM
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stumped
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The Issue Report Form

http://support.amd.com/en-us/download



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 03/03/2014 03:10 PM
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ennss
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This is a "feature" of Displayport and Windows.    This is how it was "designed" to work.   Google for many complaints and no solutions.

The best option so far is to leave your monitor on, and use Power management settings to turn off monitor when it's idle...

There should be a simple "do not detect monitor changes" checkbox in display settings to override the stupid default behaviour of displayport and windows, but there isn't.     No one has ever wanted their windows desktop completely rearranged every time a monitor is turned on or off or plugged in.

Also Dell UP3214q and UP2414q seem to have Displayport 1.2 issues, so that they do not resume from sleep (or sometimes detect at post) properly, so that using power management is also a roll of the dice, because the monitor may not wake up properly without a power-off/power-on.

I've also posted on Dell forums.  I think the problems will require firmware updates from both Dell and AMD.



Edited: 03/04/2014 at 01:21 PM by ennss
 03/05/2014 03:26 AM
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jcwild
Peon

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Thanks guys, that makes a lot of sense.

 03/07/2014 06:40 PM
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Vegan
Elite

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Originally posted by: ennss  

 

This is a "feature" of Displayport and Windows.    This is how it was "designed" to work.   Google for many complaints and no solutions.

 

The best option so far is to leave your monitor on, and use Power management settings to turn off monitor when it's idle...

 

There should be a simple "do not detect monitor changes" checkbox in display settings to override the stupid default behaviour of displayport and windows, but there isn't.     No one has ever wanted their windows desktop completely rearranged every time a monitor is turned on or off or plugged in.

 

Also Dell UP3214q and UP2414q seem to have Displayport 1.2 issues, so that they do not resume from sleep (or sometimes detect at post) properly, so that using power management is also a roll of the dice, because the monitor may not wake up properly without a power-off/power-on.

 

I've also posted on Dell forums.  I think the problems will require firmware updates from both Dell and AMD.

 

I have tracked this issue and lots of peep are having problems with early panels using DP 1.2

not so clear if its the video card, panel or drivers as posts are not exactly super clear with specifics

notice my signature has my rig specs, get specific

 



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