FLTK applications cannot start
Metadata
Current evaluation
FLTK launch failures were configuration-related; the reporter confirmed desktop-gtk3, an after dependency, and desktop-launch $SNAP/bin/<cmd> fixed both apps.
Suggested action: close not a bug
Reason: A maintainer diagnosed the errors as an unconfigured desktop runtime environment, and the reporter later confirmed that using desktop-launch with an absolute $SNAP command path resolved the launch failure. Current documentation also covers desktop-launch and desktop helper parts, so this was a snap recipe configuration issue rather than a Snapcraft defect.
Evaluated by: mr-cal-bot
Impact:
25
Quick Win:
18
Complexity:
20
Confidence:
96
Actionability:
90
Issue body
Hi,
I'm trying to create snaps for two FLTK-based applications I maintain (rasterview and HTMLDOC) but when I run these applications I get two error messages:
XOpenIM() failed
Unable to find fonts. Check your FontConfig configuration.
Both applications list the "x11" and "unity7" interfaces in the plugs: value in snapcraft.yaml, but neither will open a window. (HTMLDOC also has a command-line mode, and that works just fine...)
The projects are hosted on Github:
https://github.com/michaelrsweet/htmldoc
https://github.com/michaelrsweet/rasterview
Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| stealth/space-bunny-alpha |
Impact:
25
Quick Win:
18
Complexity:
20
Confidence:
96
Actionability:
90
|
close not a bug | FLTK launch failures were configuration-related; the reporter confirmed desktop-gtk3, an after dependency, and desktop-launch $SNAP/bin/<cmd> fixed both apps. | |
| stealth/space-bunny-alpha |
Impact:
12
Quick Win:
8
Complexity:
8
Confidence:
84
Actionability:
72
|
close not a bug | FLTK snaps failed with 'XOpenIM() failed' / 'Unable to find fonts' because the runtime environment wasn't set; resolved via desktop-gtk3 part + desktop-launch $SNAP/bin/<cmd>, now handled by the gnome extension | |
| qwen/qwen3.6-35b-a3b |
Impact:
30
Quick Win:
7
Complexity:
40
Confidence:
50
Actionability:
40
|
keep open | FLTK applications fail to start in snaps due to XOpenIM and FontConfig errors; issue is 9+ years old with no maintainer response. | |
| qwen/qwen3.8-27b |
Impact:
15
Quick Win:
9
Staleness:
92
Complexity:
40
Confidence:
70
Support Request:
65
|
close stale | 2017 report that FLTK apps (rasterview, HTMLDOC) fail to start in snaps with XOpenIM and fontconfig errors. Zero comments, no labels, no maintainer activity for ~8.6 years; references the since-removed unity7 interface. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
95
Complexity:
25
Confidence:
90
Support Request:
90
|
close stale | User reports FLTK apps failing to start in snaps with X11 and FontConfig errors. Issue is 9 years old, has no comments, and lacks maintainer triage. Likely obsolete due to significant snapcraft ecosystem changes. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
98
Complexity:
20
Confidence:
90
Support Request:
85
|
close stale | FLTK apps fail to start in snaps with XOpenIM and fontconfig errors. Issue is 9 years old, has no maintainer response, references deprecated unity7 interface, and remains unresolved. | |
| qwen3.6-35b-a3b-mtp-q6 |
Staleness:
95
Complexity:
40
Confidence:
90
Support Request:
85
|
close stale | User reports FLTK snap applications failing to start with X11 and FontConfig errors. Issue is over 9 years old, references the deprecated unity7 interface, and has no maintainer response. |
Update history
| Date | Change |
|---|---|
| created |
Related issues
No related issues found above the similarity threshold.