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-rw-r--r--README.md7
1 files changed, 6 insertions, 1 deletions
diff --git a/README.md b/README.md
index d7c15f8..4d884d3 100644
--- a/README.md
+++ b/README.md
@@ -55,10 +55,15 @@ VO: [vdpau] 1280x720 vdpau[yuv420p]
```
If you don't see anything related to VDPAU, it means that it doesn't work for some reason. Check that `/usr/lib/vdpau/libvdpau_tegra.so.1` exists, note that `VDPAU_DRIVER_PATH` must point to the directory containing the shared library, not the library file.
-# Resolving issues
+# Resolving issues:
Debug messages could be enabled using these environment variables: `VDPAU_TRACE=1` `VDPAU_TEGRA_DEBUG=1`.
+Other environment variables:
+
+* `VDPAU_TEGRA_FORCE_XV=1` force display output to Xv overlay
+* `VDPAU_TEGRA_FORCE_DRI=1` force display output using DRI
+
# Todo:
* ~~Accelerated output to overlay~~