[GH-ISSUE #2838] mpv: no-cache causes slow OSD #1774

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opened 2026-05-05 08:26:42 -06:00 by gitea-mirror · 1 comment

gitea-mirror commented

2026-05-05 08:26:42 -06:00

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Originally created by @Artefact2 on GitHub (Jul 7, 2019).
Original GitHub issue: https://github.com/netblue30/firejail/issues/2838

The no-cache in mpv.profile causes the OSD to load slowly the first time it is used (a couple of seconds), freezing video playback. mpv -v gives:

[osd/libass] Shaper: FriBidi 0.19.7 (SIMPLE) HarfBuzz-ng 2.5.3 (COMPLEX)
[osd/libass] Setting up fonts... <-- this is where it hangs
[osd/libass] Using font provider fontconfig
[osd/libass] Done.
[osd/libass] fontselect: (sans-serif, 400, 0) -> /usr/share/fonts/noto/NotoSans-Medium.ttf, 0, NotoSans-Medium
[osd/libass] fontselect: (mpv-osd-symbols, 400, 0) -> mpv-osd-symbols-Regular, 0, mpv-osd-symbols-Regular

Removing private-cache works as expected (libass can access fontconfig cache and the fonts load instantly, no OSD slowdown).

Originally created by @Artefact2 on GitHub (Jul 7, 2019). Original GitHub issue: https://github.com/netblue30/firejail/issues/2838 The `no-cache` in `mpv.profile` causes the OSD to load slowly the first time it is used (a couple of seconds), freezing video playback. `mpv -v` gives: ~~~ [osd/libass] Shaper: FriBidi 0.19.7 (SIMPLE) HarfBuzz-ng 2.5.3 (COMPLEX) [osd/libass] Setting up fonts... <-- this is where it hangs [osd/libass] Using font provider fontconfig [osd/libass] Done. [osd/libass] fontselect: (sans-serif, 400, 0) -> /usr/share/fonts/noto/NotoSans-Medium.ttf, 0, NotoSans-Medium [osd/libass] fontselect: (mpv-osd-symbols, 400, 0) -> mpv-osd-symbols-Regular, 0, mpv-osd-symbols-Regular ~~~ Removing `private-cache` works as expected (libass can access fontconfig cache and the fonts load instantly, no OSD slowdown).