From dae260034cad3ec5d644e798d6e6947f3074c9dc Mon Sep 17 00:00:00 2001 From: Thomas Tuegel Date: Thu, 19 Oct 2017 07:09:01 -0500 Subject: nixos/sddm: delete QML cache Prior to Qt 5.9.2, there is a QML cache invalidation bug which causes SDDM to segfault when upgrading Plasma. See also: https://bugreports.qt.io/browse/QTBUG-62302 --- nixos/modules/services/x11/display-managers/sddm.nix | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'nixos') diff --git a/nixos/modules/services/x11/display-managers/sddm.nix b/nixos/modules/services/x11/display-managers/sddm.nix index e6cc02e4d491..facaea131ae5 100644 --- a/nixos/modules/services/x11/display-managers/sddm.nix +++ b/nixos/modules/services/x11/display-managers/sddm.nix @@ -19,6 +19,17 @@ let Xsetup = pkgs.writeScript "Xsetup" '' #!/bin/sh + + # Prior to Qt 5.9.2, there is a QML cache invalidation bug which sometimes + # strikes new Plasma 5 releases. If the QML cache is not invalidated, SDDM + # will segfault without explanation. We really tore our hair out for awhile + # before finding the bug: + # https://bugreports.qt.io/browse/QTBUG-62302 + # We work around the problem by deleting the QML cache before startup. It + # will be regenerated, causing a small but perceptible delay when SDDM + # starts. + rm -fr /var/lib/sddm/.cache/sddm-greeter/qmlcache + ${cfg.setupScript} ''; -- cgit 1.4.1