View Issue Details

IDProjectCategoryView StatusLast Update
0003741FreeCADBugpublic2021-02-06 06:50
ReporterHardyW Assigned To 
Status feedbackResolutionopen 
PlatformiMacOSmacOSOS VersionMojave
Product Version0.17 
Target Version0.20 
Summary0003741: [macOS] Wrong coordinate calculation / visualisation when using Retina display
DescriptionThe drawn elements are wrongly shown relative to a background image when tracing elements of the image. This error only occurs on Retina displays!
Steps To ReproduceCreate a new document, switch to image mode and import an image. Switch to draft mode to trace the outlines of an image.
Additional InformationExample screen print attached.
TagsHiDPI, macOS, retina
FreeCAD Information


related to 0003738 closedpeterl94 FreeCAD [macOS] Wrong display of icons in toolbar 
related to 0003739 closedcarlopav Draft [macOS] 2D objects (draft mode) cannot be edited by mouse on Retina display 



2018-12-18 20:57



2018-12-19 09:33

administrator   ~0012310



2019-01-05 11:43

administrator   ~0012379

@blacey care to weigh in?


2019-01-05 15:03

developer   ~0012392

Last edited: 2019-01-05 15:03

There are a number of issues related to HiDPI monitors in FreeCAD regardless of the underlying OS. Some improvements were implemented during the Qt4->Qt5 transition but several are not simple fixes because supporting frameworks, such as Coin 3D, do not natively support HiDPI resolutions.

On macOS, the most effective work-around is to run FreeCAD in low-res support by using Finder->Get Info on /Applications/ and enable the "Open in Low Resolution" option.

LowResMode.jpg (193,258 bytes)   
LowResMode.jpg (193,258 bytes)   


2022-03-03 13:55

administrator   ~0016685

This ticket has been migrated to GitHub as issue 5850.

Issue History

Date Modified Username Field Change
2018-12-18 20:57 HardyW New Issue
2018-12-18 20:57 HardyW File Added: Bildschirmfoto 2018-12-18 um 21.55.45.png
2018-12-19 09:33 Kunda1 Assigned To => Kunda1
2018-12-19 09:33 Kunda1 Status new => feedback
2018-12-19 09:33 Kunda1 Note Added: 0012310
2018-12-24 12:36 Kunda1 Relationship added related to 0003738
2018-12-24 12:36 Kunda1 Relationship added related to 0003739
2018-12-24 12:36 Kunda1 Assigned To Kunda1 =>
2018-12-24 12:36 Kunda1 Tag Attached: MacOSX
2019-01-05 11:43 Kunda1 Note Added: 0012379
2019-01-05 15:03 blacey File Added: LowResMode.jpg
2019-01-05 15:03 blacey Note Added: 0012392
2019-01-05 15:03 blacey Note Edited: 0012392
2019-02-10 16:07 Kunda1 Tag Attached: retina
2019-03-03 14:02 Kunda1 Tag Attached: HiDPI
2020-11-13 14:08 Kunda1 Tag Renamed MacOSX => macOS
2021-02-06 06:50 abdullah Target Version => 0.20