Re: GNUstep app fails on Ubuntu 16

[Riccardo Mottola]

Hello Andreas,


Andreas Höschler wrote:

> It actually does happen with a few form of my app only as I have just 
> figured out. Small forms seem to work.
>
> 2020-05-06 18:04:06.080 SOObjectBrowser[2483:2483] 
> <FBMarkupController: 0x276b8b0> <SOFormContext: 0x5c9f430> 
> setAccesslevel 2
> 2020-05-06 18:04:06.087 SOObjectBrowser[2483:2483] Cairo status 
> 'invalid value (typically too big) for the size of the input (surface, 
> pattern, etc.)' in DPSinitgraphics
> 2020-05-06 18:04:06.087 SOObjectBrowser[2483:2483] returning 
> controller <FBMarkupController: 0x276b8b0>
> 2020-05-06 18:04:06.092 SOObjectBrowser[2483:2483] WARNING: 
> -drawGState called with a NULL target context ((null)) or source 
> context (0x5ef4b50)
> 2020-05-06 18:04:06.102 SOObjectBrowser[2483:2483] WARNING: 
> -drawGState called with a NULL target context ((null)) or source 
> context (0x6251360)
> 2020-05-06 18:04:06.103 SOObjectBrowser[2483:2483] WARNING: 
> -drawGState called with a NULL target context ((null)) or source 
> context (0x13ec870)
> 2020-05-06 18:04:06.114 SOObjectBrowser[2483:2483] WARNING: 
> -drawGState called with a NULL target context ((null)) or source 
> context (0x1097a40)
> 2020-05-06 18:04:06.116 SOObjectBrowser[2483:2483] WARNING: 
> -drawGState called with a NULL target context ((null)) or source 
> context (0x1097a40)
> 2020-05-06 18:04:06.117 SOObjectBrowser[2483:2483] WARNING: 
> -drawGState called with a NULL target context ((null)) or source 
> context (0x1097a40)
>
> When this error occurs the app is no longer usable. Quitting the app 
> via the menu still works though.
>
> Could it be that this happens if the form is too large and does not 
> fit on the screen? I have resized my display to 1600 x 1200 pixels but 
> the problem still occurs if I try to open some forms, it doe snot 
> occur with others!? I couldn't pinpoint this to a specific GUI class. 
> But it indeed seems to be cairo/back related!
>
> This combo is so far unusable. I will try libart now ...

I have one Ubuntu test computer, but I don't remember which version it 
is, perhaps the same as yours, I could check.

What app are you running? the errors are not nice, something is not 
properly initialized I think and could be to "max int" for example a -1 
that overflowed or so.

What do you mean with "forms" ? windows? views?

Please test with standard gnustep applications: Ink as a minimum 
example, a more complex one would be GWorkspace or any of my apps from 
GAP for example.

We need to understand if it is "your app" that tickles something in 
GNUstep or if other apps which are known to work elsewhere stimulate it too.


Riccardo