U2715H - Windows automatically resized when the screen turns off then turn it back on

  • Windows 8.1 Pro
  • 1 single monitor connected to the PC
  • native resolution 2650 x 1440 at 60 Hz the value
  • through CDM of the monitor to the RFP the ti EVGA 750 SC (cable Dell)
  • all drivers updated on 28/12/15

I just bought this monitor and I noticed this strange behavior. Whenever I have turn off the monitor (or it will turn off by itself), if I didn't have a maximized window, all windows (regardless of size) gets automatically resized to fit in the left upper quadrant when the screen turns back on again.  If I had something full screen, this behavior does not occur.

I find this very annoying. This behavior happened with my previous monitor, which was only 1080 x 1200.

I was unable to find any setting for the U2715H disable this "feature". This isn't because EasyArrange from Dell. I do not use this feature. And this always happens with Display Manager not installed.

Is it just a 'feature' of Dell U2715H? Is responsible for Windows? Help, please.

TIA

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There was no pilot or changes to the hardware of my first post.  BTW, my monitor is a Rev A02.

A few days after my previous message, another question emerged.  Monitor flash intermittently ON / OFF every few seconds.  I unplugged/replugged the cable CDM - DP and that seems to fix things... until the next day.  This time, I nothing could fix the random rotation power SWITCH of the monitor.  Desperate, I decided to plug an old HDMI cable, I had to hang out.  Flashing problem has been resolved.  Not only this, using HDMI solved my original problem of auto resizing windows.

The solution to my original problem: use an HDMI cable.  I went to the Dell CDM - DP cable and the problem has been resolved; no more windows resize automatically when the monitor turns off in sleep/towers.  I always get the native resolution at 60 Hz and there is no noticeable disadvantages to the use of the HDMI versus DP interface.  I've been using the HDMI cable for about a week and there is no other issue.

Just for additional verification, I bought an Accell UltraAV DP - DP 1.2 cable (B142C-007 b-2), one of the few officially approved by VESA (see link below).  Using this cable does NOT my automatic window resizing problem original.  I do not use it long enough to see if they would prevent the random flashing question.

I still don't know the exact cause of my original question.  I guess it's a driver problem with DisplayPort standard.  But if you do not need DP 1.2 functionality, I suggest that you just use your GPU HDMI output (if she has a).

www.DisplayPort.org/.../How-to-Choose-a-DisplayPort-Cable-and-not-get-a-Bad-One

Tags: Dell Peripherals

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