kicad-developers team mailing list archive

[pmx <pmx00003@xxxxxxx>]

Le 11/01/2022 à 19:25, Steven A. Falco a écrit :
> > I don't think the dialog would help any in the situation you are 
> > describing with the artifacts on the screen. It was only shown on 
> > first start, so it wouldn't give the choice in future runs (which 
> > would be after you notice all the artifacts). You can change the 
> > rendering backend in the preferences pane though, so you can switch 
> > back to the fallback graphics that way.
>
> I'm describing two situations.  One is the artifacts on my desktop, 
> and one is the segfault on VMs.  As long as the window opens and is 
> somewhat usable, then one can select fallback graphics easily from 
> preferences, as you said.  The bigger problem is on the VMs where it 
> crashes before the window gets a chance to even open.  I'll look at 
> the issue you linked and see if that helps.  I'll also try a test 
> build from the tip of the 6.0 branch and see how that behaves.
>
> I'm more concerned that fallback graphics might be removed entirely at 
> some point.  Hopefully accelerated mode will be bullet-proof before 
> that decision is made.
>
>     Steve 

Unless there is much work involved to keep both backends working in the 
future, I strongly feel that a fallback graphics engine is a must and 
should be kept alive, even if this requires some (moderate...) effort.

IMHO, we shouldn't remove anything that helps to deal gracefully with 
the diversity of situations (like a virtual machine), graphics hardware 
and video drivers... and their possible bugs ! (as stated about X11/Mesa).


@ Steven :
About the possibility to choose a graphics backend, in any situation, 
and indeed before a segfault  happens 😁 :

What about a command line option (when launching Kicad), to force a 
specific graphics backend, including a "safe" fallback ?
Should be quite straightforward.


Cheers,
pmx.