https://www.displayfusion.com/Discussions/RSS/?TopicID=99e05dd2-ac98-49ea-b3e1-a47817af5677 DisplayFusion RSS: maximize at horizontally splitted UHD-monitor fails Sat, 23 May 2026 17:12:22 GMT en hourly 1 https://www.displayfusion.com/Discussions/RSS/?TopicID=99e05dd2-ac98-49ea-b3e1-a47817af5677 https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#17 Tue, 08 Sep 2015 15:10:02 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#17 DisplayFusion Now it works fine, thank you! ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#16 Tue, 08 Sep 2015 14:43:50 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#16 DisplayFusion We've just released a new DisplayFusion beta version (http://www.displayfusion.com/Download/Beta/) and this issue should be all fixed up. Please let us know if you run into any trouble after updating.

Thanks! ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#15 Mon, 09 Mar 2015 20:38:47 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#15 DisplayFusion Ok, I've actually reproduced a very similar issue here, just with a slightly different setup. I think they're being caused by the same bug, so I'll let you know when we've gotten it fixed up so that you can try it out again

Thanks! ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#14 Fri, 27 Feb 2015 20:59:01 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#14 DisplayFusion No, if only the UHD monitor is enabled all is fine (than the UHD is the pimary one and if so, it always works as expected). ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#13 Fri, 27 Feb 2015 20:47:30 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#13 DisplayFusion I still haven't had any luck with reproducing this here. If you enable only the UHD monitor, and split it, does this still happen? If so, can you attach an updated copy of the troubleshooting info (Settings > Troubleshooting > Copy to Clipboard) after reproducing it? Please copy the troubleshooting info while the application is maximized at the wrong size.

Thanks! ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#12 Fri, 30 Jan 2015 21:11:55 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#12 DisplayFusion Ok, thanks! Sorry for the delayed response on this. I'll need to do some more testing here to try and reproduce this. I'll keep you posted as soon as I've had a chance to do that ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#11 Sat, 24 Jan 2015 11:42:20 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#11 DisplayFusion Now the screenshot is unprotected. Taskbars are deactivated as you can see in my first screenshot.
It seems your settings are the same as mine.
I’ve tried two displays, other relative screen positions and so on. All tests lead to the same result: The apps maximize to the size of full screen size (above 1920x1200px area size). The app’s upper left corner is at the right position (identically with the upper left corner of the area), but the size is always 3840x2160px. If the areas upper left corner is at {100;100}, the app maximizes to {100;100}x{3940;2260} (it projects beyond the edges of the screen). As an example I attached a new screenshot with maximized solitaire at {1915;500} (1925x1660px). It seems the window never gets the width and height of the destination area. I’ve recorded the window messages with spy++ and included the results into the screenshot.
Now I’ve deactivated all possible options (with the same test results) and attached my system details (DisplayFusion troubleshooting tab). ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#10 Sat, 24 Jan 2015 02:11:02 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#10 DisplayFusion Agh! Sorry, it really should be unprotected now.

I tried it with 3 monitors, and with the 3840x2160 monitor being non-primary and split in a 2x1 setup. Not sure what else might be different between our setups.

Do you have the taskbars enabled or disabled for splits (the checkbox in the Monitor Configuration window)? ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#9 Fri, 23 Jan 2015 21:07:46 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#9 DisplayFusion It's not only with MS Office apps. It's also with notepad. Have you tried it on a non primary screen? On the primary one there is no problem. Maybe I can try it with other constellations tomorrow (only two screens etc.)

PS: Your screenshot appears still protected. ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#8 Fri, 23 Jan 2015 17:02:53 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#8 DisplayFusion Sorry, I've unprotected the screenshot. So is it only Microsoft Office apps that have this issue? I've just tested with Word 2013 on a split that was 1925x2160, but it still maximized correctly. ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#7 Wed, 21 Jan 2015 21:36:26 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#7 DisplayFusion I found out the exact parameters:

Maximization fails if the area meet following conditions at once:

width >= 1921
height >= 1201
display is not the primary display

If the display is the primary display or the width is below or equal 1920 or the height is below or equal 1200, than all works correctly.

MS Office products need a width below 1900px. At 1920x2160, they still expand to full screen.

Maybe this is a hint for finding the root of the problem.

Thanks for investigating! ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#6 Wed, 21 Jan 2015 21:20:57 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#6 DisplayFusion If I make the 3840x2160 UHD display the primary, applications only maximize to the desíred size of the area.
My problem occours only if the UHD display is NOT THE PRIMARY display. ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#5 Wed, 21 Jan 2015 20:55:07 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#5 DisplayFusion Your attachment is protected and I can't access it (I'm logged in, that's not the problem).
I've testet it with notepad at an area of 2160x2160px and it also expands to full screen. ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#4 Wed, 21 Jan 2015 20:43:13 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#4 DisplayFusion Thanks! I set my test machine up as you described (see the attached screenshot), but I couldn't reproduce the issue. I only tested it by maximizing Notepad into each split on the 3840 x 2160 monitor. Does this issue only happen with certain apps on your system, or all apps? ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#3 Wed, 21 Jan 2015 07:30:01 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#3 DisplayFusion Thanks for your response!

I forgot my system details:

graphics: AMD Radeon R9 290
cpu: Intel i7-4790K

displays:
Samsung S24A300B 1920x1080 @HDMI (DVI->HDIM adaptor)
DELL U2412M 1920x1200 @DVI
Samsung U28D590D 3840x2160 @DisplayPort

Windows 7 Home SP1

Maybe this helps for testing.
I'm curious about it. ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#2 Tue, 20 Jan 2015 19:51:56 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677#2 DisplayFusion Interesting! I'll test this out here and keep you posted on what I find out.

Thanks! ]]> https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677 Tue, 20 Jan 2015 08:18:53 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/maximize-at-horizontally-splitted-uhd-monitor-fails/?ID=99e05dd2-ac98-49ea-b3e1-a47817af5677 DisplayFusion Hello,

I have tried to split my UHD 3840x2160 monitor into 2x 1920x2160. If i try to maximize MS Outlook, it extends to the full screen and not only to 1920x2160.

If i split into 1890x2160, all works fine, but at area widths above 1900, maximize Fails.

My settings are:
3 monitors:
- 1920x1080 on the left (splitted into 800x500 + 800x580, 800x1080 and 320x1080),
- 1920x1200 in Center (primary monitor, not splitted),
- 3840x2160 on the right (splitted with problems above area width of 1900)

The settings at the attached picture works fine because i added a 300px width area and so the both remaining are smaller than 1900px, but that is not a good solution for all purpose.

What can I do to get rid of this issue?

Thanks

Anton ]]>