[Solved]Black screen by starting first document
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[Solved]Black screen by starting first document
Hi,
Today I started my first experience with FreeCAD and after installing the software without any problems and after watching the FreeCad 0.18 Introduction on YouTube, I was convinced to be able to have a fluent start.
However I'm struggling with a black screen direct after CTR+N.
Also after a new installation, checking my disk space etcetera, so I need your input.
Looking forward to hear from you
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16110 (Git)
Build type: Release
Branch: (HEAD detached at upstream/releases/FreeCAD-0-18)
Hash: f7dccfaa909e5b9da26bf50c4a22ccca9bb10c40
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: Dutch/Netherlands (nl_NL)
Today I started my first experience with FreeCAD and after installing the software without any problems and after watching the FreeCad 0.18 Introduction on YouTube, I was convinced to be able to have a fluent start.
However I'm struggling with a black screen direct after CTR+N.
Also after a new installation, checking my disk space etcetera, so I need your input.
Looking forward to hear from you
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16110 (Git)
Build type: Release
Branch: (HEAD detached at upstream/releases/FreeCAD-0-18)
Hash: f7dccfaa909e5b9da26bf50c4a22ccca9bb10c40
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: Dutch/Netherlands (nl_NL)
- Attachments
-
- CTR+N.png (10.22 KiB) Viewed 18681 times
Re: Black screen by starting first document
I guess it has something to do with your graphics card driver, see here for more information: https://forum.freecadweb.org/viewtopic.php?f=3&t=30573.
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Re: Black screen by starting first document
I'm not sure.
Version .17 is still installed on my pcas well and this is running fine without any problems.
So to me it is 100% related to .18. I'm not aware of the details behind the scene.
I'm able to open the menu structure by clicking blind on a suspected area.
Version .17 is still installed on my pcas well and this is running fine without any problems.
So to me it is 100% related to .18. I'm not aware of the details behind the scene.
I'm able to open the menu structure by clicking blind on a suspected area.
- Attachments
-
- FreeCad error.png (24.03 KiB) Viewed 18649 times
Re: Black screen by starting first document
See here what has changed behind the scene and possibly a workaround: https://forum.freecadweb.org/viewtopic. ... 46#p305546
Unfortunately, we don't have much control over what Qt does with OpenGL internally.
Btw, this reminds at a similar issue on Win10 I have seen some months ago with Qt5.12. A workaround was to set
in the source code or alternatively set the environment variable QT_OPENGL to desktop.
Unfortunately, we don't have much control over what Qt does with OpenGL internally.
Btw, this reminds at a similar issue on Win10 I have seen some months ago with Qt5.12. A workaround was to set
Code: Select all
Qt::AA_UseDesktopOpenGL
Re: Black screen by starting first document
A simple solution was to buy a modern video card, in my case a MSI GeForce GT 710 1GB, for less then € 50,00
Re: [Solved]Black screen by starting first document
When I downloaded the latest stable release (0.18 - 16110) the same black screen bug happened to me. I am very surprised because 0.18.15969 from the nightly builds worked flawlessly for 2 months or so on the same computer. This makes me doubt that Qt5 causes the issue... I attached screenshot of the two versions running at the same time. (Triple monitor setup makes screenshots weird)
I can use the older build for now but it worries me that I wont be able to upgrade if this issue is not addressed...
I can use the older build for now but it worries me that I wont be able to upgrade if this issue is not addressed...
- Attachments
-
- freecad_display_bug.png (360.43 KiB) Viewed 18463 times
Re: [Solved]Black screen by starting first document
If you click on "Copy to clipboard" button and paste the result in text editor. What does the "Qt version" say for each build?
P.S. But it is interesting, as i wouldn't expect anything beyond the viewport to have such issues. What happens if you close the viewport (Ctrl + W)? Any difference?
Re: [Solved]Black screen by starting first document
You are right, it is different Qt version, I just automatically assumed that changing Qt was a big thing and it happened from 0.17 to 0.18 but I was wrong. Anyways, is there a way to use the newer builds with the older Qt versions?
Working:
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15969 (Git)
Build type: Release
Branch: master
Hash: 4765b7e2fe6d3609e9fbf3e3eb6648d7af1dd526
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/UnitedStates (en_US)
Not Working:
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16110 (Git)
Build type: Release
Branch: (HEAD detached at upstream/releases/FreeCAD-0-18)
Hash: f7dccfaa909e5b9da26bf50c4a22ccca9bb10c40
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)
Working:
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15969 (Git)
Build type: Release
Branch: master
Hash: 4765b7e2fe6d3609e9fbf3e3eb6648d7af1dd526
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/UnitedStates (en_US)
Not Working:
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16110 (Git)
Build type: Release
Branch: (HEAD detached at upstream/releases/FreeCAD-0-18)
Hash: f7dccfaa909e5b9da26bf50c4a22ccca9bb10c40
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)
Re: [Solved]Black screen by starting first document
I took a quick look and on releases page:
https://github.com/FreeCAD/FreeCAD/releases/
It looks like there are still Py2/Qt4 builds available for Windows for now. At some point in the future likely only Py3/Qt5 builds will be made available. Maybe newer versions of Qt 5 used in binaries will improve things.
Re: [Solved]Black screen by starting first document
In addition to what triplus has said, there is also a 0.19_pre https://github.com/FreeCAD/FreeCAD/rele ... g/0.19_pre LP_12.1.2 build that uses QT5.12.1
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