From c056d836ce41d1e5c45caf5cc133380c941f6958 Mon Sep 17 00:00:00 2001
From: Vincent Bernat <vincent@bernat.ch>
Date: Thu, 27 Dec 2018 12:24:27 +0100
Subject: [PATCH] Revert "xsession: use same compton parameters everywhere"

This reverts commit 2e9f68f6d44d819f6c86755894542fad35d64abd. This is
still noticeably slower than the xrender backend.
---
 xsession | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/xsession b/xsession
index b646d4a..c74394f 100644
--- a/xsession
+++ b/xsession
@@ -38,6 +38,20 @@ nmcli radio all off
 rfkill block all 2> /dev/null
 redshift -l 6.666:46.533 -t 6500:3900 2> /dev/null &
 systemd-run -q --scope --user tmux start-server
-compton --daemon --backend glx --xrender-sync --xrender-sync-fence --vsync opengl-swc --paint-on-overlay
+
+case $(glxinfo | awk -F': ' '($1 == "OpenGL vendor string") {print $2}') in
+    "NVIDIA Corporation")
+        # --glx-swap-method 2 causes cursor to be duplicated earlier on the line or flickering
+        # --glx-no-rebind-pixmap triggers some slow refresh, eg when using `delete-indentation' in Emacs
+        #compton --daemon --backend glx --vsync opengl-swc --glx-swap-method 3 --paint-on-overlay
+        # It seems there is no way to not have tearing with xrender...
+        compton --daemon --backend xrender --paint-on-overlay
+        ;;
+    *)
+        compton --daemon --backend glx --xrender-sync --xrender-sync-fence --vsync opengl-swc --paint-on-overlay
+        ;;
+esac
+
+
 
 exec awesome