I can confirm this very odd behavior. It used to happen a few months ago in the development version (freecad-daily) of FreeCAD 0.18, so maybe in the months of December 2018 to February 2019. The preferences window would be larger than the laptop's screen size so it was impossible to click on the OK or Cancel buttons, or to access the title bar. Eventually, an update happened and the problem appeared to be fixed.
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OS: Ubuntu 18.04.2 LTS Word size of OS: 64-bit Word size of FreeCAD: 64-bit Version: 0.18.1. Build type: Release Python version: 3.6.7 Qt version: 5.9.5 Coin version: 4.0.0a OCC version: 7.3.0 Locale: English/UnitedStates (en_US)
I have that here on my 1600x900 pixel display, to see the buttons disappear I have to first go to PartDesign WB then I see it with PartDesign or Sketcher settings. the scroll bar does not allow me to drag the window down far enough to see the OK and cancel buttons. For me the answer is to simply make the preferences window full screen, then the button are available.
That is most likely an issue with your dual monitor settings, O/S and/or GPU driver, possibly even QT. Did you previously have an older FreeCAD version on that same system and if so (do you know which one) did it work properly with an older FreeCAD?deejay2 wrote: ↑Fri Apr 26, 2019 2:24 pmThe preferences window can't be moved/dragged anywhere. It's the main FreeCAD window that is moving instead.<
I have a laptop with an external monitor. The external monitor is my main monitor with desktop icons. I start FreeCAD 0.18.1 (from stable ppa) and it spawns on my main monitor. When I click Edit->Preferences, the Preferences window often spawns on my laptop monitor and can't be dragged anywhere. Trying to drag it strangely drags the main FreeCAD window which isn't even under the mouse pointer.
No. The problem is gone in my system. I have General, Display, Import-Export, FEM, CFD, Start, Draft, PartDesign, Sketcher, Arch, all in the Preferences view, but the window keeps the same size and doesn't stretch out.
When I had the problem, I was not able to maximize the preferences window, so it was impossible to access the buttons. The window can't be minimized or maximized at all, it can only be closed with Escape.I have always assumed this is an O/S or QT issue and since I can workaround the issue by just maximising the screen, I have not thought any further about it.
This is the main issue, which still happens. I think it's a strange interaction between the Gnome Shell desktop and the Qt libraries that some programs use. Maybe a system running the KDE desktop won't present the same behavior.
As expected, it is still there in 0.18jmaustpc wrote: ↑Fri Apr 26, 2019 5:17 pmto see the buttons disappear I have to first go to PartDesign WB then I see it with PartDesign or Sketcher settings. the scroll bar does not allow me to drag the window down far enough to see the OK and cancel buttons. For me the answer is to simply make the preferences window full screen, then the button are available.
The related issue that I was referring to is now fixed in 0.19 from today's daily PPA
You probably know this already, but just in case, if we close a Mantis ticket and later decide we should not have, then we can just "un-close" the original ticket.