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-rw-r--r--gnu/packages/display-managers.scm1
1 files changed, 1 insertions, 0 deletions
diff --git a/gnu/packages/display-managers.scm b/gnu/packages/display-managers.scm
index 80b45af103..114773330d 100644
--- a/gnu/packages/display-managers.scm
+++ b/gnu/packages/display-managers.scm
@@ -100,6 +100,7 @@
(add-before 'check 'check-setup
(lambda _
(setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; Enable debug output
+ ;; make Qt render "offscreen", required for tests
(setenv "QT_QPA_PLATFORM" "offscreen")
(setenv "XDG_RUNTIME_DIR" (getcwd))
#t))