VSCode snap doesn't load fontconfig 2.13 definitions

[daniel88ferreira]

• VSCode Version: 1.20.1
• OS Version: Linux 4.15.12-1-ARCH x86_64

Steps to Reproduce:

1. Update to fontconfig 2.13.x.
2. Launch Vscode snap.

Does this issue occur when all extensions are disabled?: Yes

After upgrading fontconfig to 2.13, font hinting is wrong:

Running in verbose I get this:

$ vscode --verbose
Fontconfig warning: line 5: unknown element "its:rules"
Fontconfig warning: line 6: unknown element "its:translateRule"
Fontconfig error: line 6: invalid attribute 'translate'
Fontconfig error: line 6: invalid attribute 'selector'
Fontconfig error: line 7: invalid attribute 'xmlns:its'
Fontconfig error: line 7: invalid attribute 'version'
Fontconfig warning: line 9: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/10-hinting-slight.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/10-hinting-slight.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/10-hinting-slight.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/10-hinting-slight.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/10-hinting-slight.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/10-hinting-slight.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/10-hinting-slight.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/25-unhint-nonlatin.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/25-unhint-nonlatin.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/25-unhint-nonlatin.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/25-unhint-nonlatin.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/25-unhint-nonlatin.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/25-unhint-nonlatin.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/25-unhint-nonlatin.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/30-metric-aliases.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/30-metric-aliases.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/30-metric-aliases.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/30-metric-aliases.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/40-nonlatin.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/40-nonlatin.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/40-nonlatin.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/40-nonlatin.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/40-nonlatin.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/40-nonlatin.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/40-nonlatin.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/45-generic.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/45-generic.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/45-generic.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/45-generic.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/45-generic.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/45-generic.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/45-generic.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/45-latin.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/45-latin.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/45-latin.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/45-latin.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/45-latin.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/45-latin.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/45-latin.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/49-sansserif.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/49-sansserif.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/49-sansserif.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/49-sansserif.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/49-sansserif.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/49-sansserif.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/49-sansserif.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/50-user.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/50-user.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/50-user.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/50-user.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 8: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/51-local.conf", line 4: unknown element "its:rules"
Fontconfig warning: "/etc/fonts/conf.d/51-local.conf", line 5: unknown element "its:translateRule"
Fontconfig error: "/etc/fonts/conf.d/51-local.conf", line 5: invalid attribute 'translate'
Fontconfig error: "/etc/fonts/conf.d/51-local.conf", line 5: invalid attribute 'selector'
Fontconfig error: "/etc/fonts/conf.d/51-local.conf", line 6: invalid attribute 'xmlns:its'
Fontconfig error: "/etc/fonts/conf.d/51-local.conf", line 6: invalid attribute 'version'
Fontconfig warning: "/etc/fonts/conf.d/51-local.conf", line 8: unknown element "description"
[10913:0327/002454.051550:ERROR:gl_surface_glx.cc(87)] glXGetFBConfigs failed.
[10913:0327/002454.051616:ERROR:gl_surface_glx.cc(128)] glXCreateWindow failed
[10913:0327/002454.051626:ERROR:gl_surface_glx.cc(442)] CreateDummyWindow(g_display) failed
[10913:0327/002454.051632:ERROR:gl_initializer_x11.cc(148)] GLSurfaceGLX::InitializeOneOff failed.
[10913:0327/002454.054240:WARNING:x11_util.cc(1360)] X error received: serial 79, error_code 8 (BadMatch (invalid parameter attributes)), request_code 78, minor_code 0 (X_CreateColormap)
[10913:0327/002454.054906:WARNING:x11_util.cc(1360)] X error received: serial 83, error_code 178 (178), request_code 155, minor_code 31 (X_GLXCreateWindow)
[10913:0327/002454.055110:ERROR:gpu_child_thread.cc(324)] Exiting GPU process due to errors during initialization
[main 12:24:54 AM] Starting VS Code
[main 12:24:54 AM] from: /var/lib/snapd/snap/vscode/27/usr/share/code/resources/app
[main 12:24:54 AM] args: { _: [],
  help: false,
  h: false,
  version: false,
  v: false,
  wait: false,
  w: false,
  diff: false,
  d: false,
  add: false,
  a: false,
  goto: false,
  g: false,
  'new-window': false,
  n: false,
  'unity-launch': false,
  'reuse-window': false,
  r: false,
  'open-url': false,
  performance: false,
  p: false,
  'prof-startup': false,
  verbose: true,
  logExtensionHostCommunication: false,
  'disable-extensions': false,
  disableExtensions: false,
  'list-extensions': false,
  'show-versions': false,
  nolazy: false,
  issue: false,
  'skip-getting-started': false,
  'skip-release-notes': false,
  'sticky-quickopen': false,
  'disable-restore-windows': false,
  'disable-telemetry': false,
  'disable-updates': false,
  'disable-crash-reporter': false,
  'skip-add-to-recently-opened': false,
  status: false,
  s: false,
  'file-write': false,
  'file-chmod': false }
[main 12:24:54 AM] Resolving machine identifier...
[main 12:24:54 AM] Resolved machine identifier: 7d9743f468cf0744bcbf446370570da8e2125567bee52fd712312b8a66424c72
[main 12:24:54 AM] update#setState idle
[10885:0327/002454.920599:INFO:CONSOLE(1306)] "%cTRACE", source: file:///var/lib/snapd/snap/vscode/27/usr/share/code/resources/app/out/vs/workbench/workbench.main.js (1306)
[main 12:24:55 AM] IPC#vscode-workbenchLoaded
[10885:0327/002456.458472:INFO:CONSOLE(1306)] "%cTRACE", source: file:///var/lib/snapd/snap/vscode/27/usr/share/code/resources/app/out/vs/workbench/workbench.main.js (1306)
[10885:0327/002456.472145:INFO:CONSOLE(1306)] "%cTRACE", source: file:///var/lib/snapd/snap/vscode/27/usr/share/code/resources/app/out/vs/workbench/workbench.main.js (1306)
[10885:0327/002456.530160:INFO:CONSOLE(1306)] "%cTRACE", source: file:///var/lib/snapd/snap/vscode/27/usr/share/code/resources/app/out/vs/workbench/workbench.main.js (1306)
[10885:0327/002456.548110:INFO:CONSOLE(1306)] "%cTRACE", source: file:///var/lib/snapd/snap/vscode/27/usr/share/code/resources/app/out/vs/workbench/workbench.main.js (1306)
[main 12:25:24 AM] update#checkForUpdates, state =  idle
[main 12:25:24 AM] update#setState checking for updates
[main 12:25:25 AM] update#setState available for download
[main 12:32:53 AM] Lifecycle#window-before-close 1
[main 12:32:53 AM] Lifecycle#unload() 1
[main 12:32:54 AM] Lifecycle#window-before-close 1
[main 12:32:54 AM] Lifecycle#window-close 1
[main 12:32:54 AM] Lifecycle#window-all-closed
[main 12:32:54 AM] Lifecycle#before-quit
[main 12:32:54 AM] App#will-quit: disposing resources

fontconfig 2.13.0+10+g58f5285-1

Thanks!

[dbaeumer]

@alexandrudima @bpasero not sure whom to best assign to.

@bpasero can this be a problem of Electron / Chrome which might go away with the next Election release?

[alexdima]

Font rendering is not implemented by us, so it is an electron/chromium issue.

[Tyriar]

Could this be #35675? @daniel88ferreira can you try the Insiders build and see if it still happens? https://code.visualstudio.com/insiders

[daniel88ferreira]

With insiders
Version 1.22.0-insider Commit d656cdac7d61c16330520420e57a103697dde16d Date 2018-03-27T10:51:21.777Z Shell 1.7.12 Renderer 58.0.3029.110 Node 7.9.0 Architecture x64
or current version package (https://aur.archlinux.org/packages/visual-studio-code-bin/) the issue does not occur.

So, I think that's not related with the other issue. My guess would be that's only related with snap packaging: fontconfig definitions in version 2.13 (in my system) are not compatible with some component/library (fontconfig library??) used inside the snap you provide or inside core snap.

Thanks for the quick reply :)

[daniel88ferreira]

Hi again :)
So, I think the problem is really the fontconfig from the core snap trying to load my system's fontconfig definitions instead of the ones inside the vscode snap.
$ pwd
/snap/core/current/usr/bin
$ fc-cache -V
fontconfig version 2.12.6
And, as versions 2.12.6 and 2.13 seems incompatible, it fails.

[Tyriar]

@flexiondotorg