From f2228e1e9accbdd1fb6fe5f91b2dff44ec220c7f Mon Sep 17 00:00:00 2001
From: Roman Pahl <roman.pahl@gmail.com>
Date: Mon, 6 Nov 2023 19:47:24 +0100
Subject: [PATCH] set display variable

---
 .github/workflows/check-linux.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/check-linux.yaml b/.github/workflows/check-linux.yaml
index c9cc675..e0f58c5 100644
--- a/.github/workflows/check-linux.yaml
+++ b/.github/workflows/check-linux.yaml
@@ -37,6 +37,9 @@ jobs:
           http-user-agent: ${{ matrix.config.http-user-agent }}
           use-public-rspm: true
 
+      - name: Set Display variable
+        run: export DISPLAY=:99
+
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
           extra-packages: any::rcmdcheck