From 8c9571698ccc2c5a2ed229b5b6dec62142497cda Mon Sep 17 00:00:00 2001
From: Alan Pearce
Date: Wed, 23 May 2018 10:30:20 +0200
Subject: T470s: Improve display acceleration

The corruption issue seems to have been solved
---
 modules/machines/t470s.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'modules/machines')

diff --git a/modules/machines/t470s.nix b/modules/machines/t470s.nix
index d9bca7c..e6fb8cb 100644
--- a/modules/machines/t470s.nix
+++ b/modules/machines/t470s.nix
@@ -13,7 +13,9 @@
 
   # Try a different acceleration method; maybe it helps with screen corruption
   services.xserver.deviceSection = ''
-    Option      "AccelMethod"  "uxa"
+    Option      "AccelMethod"  "sna"
+    Option      "TearFree"     "true"
+    Option      "TripleBuffer" "false"
   '';
 
   services.xserver.monitorSection = ''
-- 
cgit 1.4.1