Hmm. I'll look to see if there is a better fix.

- Russell

On 24/07/2009, at 1:26 PM, Chris Double wrote:

I sometimes get a crash in the UI running under Linux due to a font not being available. The crash prints in the console:

Error: could not load substitute font: -*-times-medium-r-normal--9-*-*-*-*-*-*-*. Receiver is: a x11Globals fontDictionary. UI step failed twice in Self 1(type: worldMorph) -- starting debugger in new world Could not open display "localhost:0.0", error: primitiveFailedError

1. Try Again
2. Try Local Display
3. Give Up

[Type the number of your selection]

None of the available options allow resuming since the same error continuously occurs. It seems that the requested font is not available in the size of 9 points,

The easiest way I can reproduce it is to evaluate something like 'foo' in a shell in the UI, where 'foo' does not exist. The debugger pops up and expanding the stack causes the error.

As a temporary workaround I modified the method 'structForFontSpec:WindowCanvas:' in 'traits xFontDictionary' so that when it tries to use the substitute font it specifically uses a size of '10' - one I know that exists on my system.

• substituteName: (fullNameFor: x11Globals scalableFont times Size:

fSpec size).

• substituteName: (fullNameFor: x11Globals scalableFont times Size:

10).

This stops the crash and lets me use the debugger and other tools (The inspectors in the Smalltalk application),

Chris.

http://www.bluishcoder.co.nz