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--- ubuntu:gpu:troubleshooting:error_ring_gfx_0.0.0_timeout [2023/06/05 13:15] – [An alternative workaround] peter
+++ ubuntu:gpu:troubleshooting:error_ring_gfx_0.0.0_timeout [2023/06/05 13:22] (current) – peter
@@ Line 114: / Line 114: @@
 </code>
+</WRAP>
+----
+===== Use Mesa Environment Parameters to identify the cause =====
+Add **RADV_DEBUG=hang** to the **/etc/environment**, then try triggering the fault again.
+This dumps a report to $HOME/radv_dumps_<pid>_<time> if a GPU hang is detected.
+Report the error to the Mesa Team.
+<WRAP info>
+**NOTE:**  See https://docs.mesa3d.org/envvars.html
 </WRAP>
@@ Line 121: / Line 135: @@
 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/amd/include/amd_shared.h#n199
+https://docs.mesa3d.org/envvars.html