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--- ubuntu:gpu:amd_gpu:troubleshooting:screen_tearing [2023/06/21 20:17] – created peter
+++ ubuntu:gpu:amd_gpu:troubleshooting:screen_tearing [2023/06/21 21:02] (current) – peter
@@ Line 1: / Line 1: @@
 ====== Ubuntu - GPU - AMD GPU - Troubleshooting - Screen Tearing ======
-Update: Seems this configuration is effective for many different systems, according to feedback, including Mint, OpenSUSE and Gentoo. I expect it will work with most systems, with the exception of those with hybrid graphics. It’s most likely using Xorg-server 1.19 or Wayland may correct such issues.
+Screen tearing is an effect seen in moving pictures where the display suffers from distortion due to incorrect rendering of fast-changing images
-In **/usr/share/X11/xorg.conf.d/** directory, edit (or create) a file called **20-radeon.conf** (look for amdgpu.conf for users with the amdgpu drivers) with the following contents:
+  * Screen tearing occurs when the monitor’s refresh rate and GPU’s frame rate are not synchronized.
+  * It is characterized as a horizontal split at one or more places in the image.
-<file bash /usr/share/X11/xorg.conf.d/20-radeon.conf>
+Screen tearing can be fixed by enabling VSync, Adaptive VSync, Enhanced Sync, Fast Sync, FreeSync, G-SYNC or Variable Refresh Rate, depending on what the PC system and monitor support.
-    Section "Device"
-        Identifier "Radeon"
+----
-        Driver "radeon"
-        Option "TearFree" "on"
+===== GPU Config File Update =====
-    EndSection
+Edit (or create) the Xorg config file in the **/usr/share/X11/xorg.conf.d/** directory.
+  * If using a newer AMD GPU, the file is probably the one named **10-amdgpu.conf**.
+<file bash /usr/share/X11/xorg.conf.d/10-amdgpu.conf>
+Section "Device"
+    Identifier "AMDgpu"
+    MatchDriver "amdgpu"
+    Driver "amdgpu"
+    Option "TearFree" "true"
+EndSection
+</file>
+  * If using an older AMD GPU, the file is probably the one named **10-radeon.conf**.
+<file bash /usr/share/X11/xorg.conf.d/10-radeon.conf>
+Section "Device"
+    Identifier "Radeon"
+    MatchDriver "radeon"
+    Driver "radeon"
+    Option "TearFree" "true"
+EndSection
 </file>
 <WRAP info>
 **NOTE:**  The key here is the **TearFree** option.
+  * This configuration is effective for many different systems
+  * It mmay work with Xorg-server or Wayland.
 </WRAP>
@@ Line 42: / Line 68: @@
   * The enhanced configuration is as follows:
-<file bash /usr/share/X11/xorg.conf.d/20-radeon.conf>
+<file bash /usr/share/X11/xorg.conf.d/10-amdgpu.conf>
-    Section "Device"
+Section "Device"
-        Identifier "Radeon"
+    Identifier "AMDgpu"
-        Driver "radeon"
+    MatchDriver "amdgpu"
-        Option "TearFree" "on"
+    Driver "amdgpu"
-        Option "DRI" "3"
+    Option "TearFree" "true"
-        Option "AccelMethod" "glamor"
+    Option "DRI" "3"
-    EndSection
+    Option "AccelMethod" "glamor"
+EndSection
+</file>
+or
+<file bash /usr/share/X11/xorg.conf.d/10-radeon.conf>
+Section "Device"
+    Identifier "Radeon"
+    MatchDriver "radeon"
+    Driver "radeon"
+    Option "TearFree" "true"
+    Option "DRI" "3"
+    Option "AccelMethod" "glamor"
+EndSection
 </file>
 ----
+===== Check the current TearFree status =====
+<code bash>
+xrandr --verbose | grep "TearFree"
+</code>