diff --git a/Headless-Linux-Support.md b/Headless-Linux-Support.md
index b6e3cca..ef4b8a7 100644
--- a/Headless-Linux-Support.md
+++ b/Headless-Linux-Support.md
@@ -53,10 +53,11 @@ https://github.com/rustdesk/rustdesk/pull/3902#issue-1651369085
 - Intel virtual display: https://github.com/rustdesk/rustdesk/issues/59#issuecomment-1494257375
 - https://www.reddit.com/r/Immersed/comments/1bjqqbb/how_can_i_add_another_screen_im_currently_working/
 - Fake / dummy hdmi https://github.com/rustdesk/rustdesk/issues/59#issuecomment-1494275098 https://github.com/rustdesk/rustdesk/issues/59#issuecomment-1162817430
-- Configure dummy display yourself, https://github.com/rustdesk/rustdesk/issues/3592
+- Configure dummy display yourself
+  - https://github.com/rustdesk/rustdesk/issues/3592
+  - https://askubuntu.com/questions/1396903/dummy-monitor-in-21-10
 - A lot of virtual display here, https://github.com/pavlobu/deskreen/discussions/86
 - https://docs.kernel.org/gpu/vkms.html
-
 # Some help
 - https://github.com/rustdesk/rustdesk/pull/3902#issuecomment-1937900476