diff --git a/.github/workflows/docker-alpine-image.yaml b/.github/workflows/docker-alpine-image.yaml
index 1404c02..3a0ed2b 100644
--- a/.github/workflows/docker-alpine-image.yaml
+++ b/.github/workflows/docker-alpine-image.yaml
@@ -59,8 +59,8 @@ jobs:
       -
         name: Test
         run: |
-          echo version: $(docker run --rm -e NO_EDID=1 -t ustreamer --version)
-          echo -e "features:\n$(docker run --rm -e NO_EDID=1 -t ustreamer --features)"
+          echo version: $(docker run --rm -t ustreamer --version)
+          echo -e "features:\n$(docker run --rm -t ustreamer --features)"
       -
         name: Build multi arch
         uses: docker/build-push-action@v3
diff --git a/README.md b/README.md
index edf0367..65ffa5f 100644
--- a/README.md
+++ b/README.md
@@ -102,11 +102,20 @@ Save changes and reboot.
 ## Launch
 Start container:
 ```bash
-$ docker run --device /dev/video0:/dev/video0 -p 8080:8080 pikvm/ustreamer:latest
+$ docker run --device /dev/video0:/dev/video0 -e EDID=1 -p 8080:8080 pikvm/ustreamer:latest
 ```
 Then access the web interface at port 8080 (e.g. http://raspberrypi.local:8080).
+## Custom config
+```bash
+$ docker run --rm pikvm/ustreamer:latest \
+    --format=uyvy \
+    --workers=3 \
+    --persistent \
+    --dv-timings \
+    --drop-same-frames=30
+```
 ## EDID
-Container will set HDMI EDID before starging ustreamer. Use `-e NO_EDID=1` to not set EDID. Use `-e EDID_HEX=xx` to specify custom EDID data.
+Add `-e EDID=1` to set HDMI EDID before starging ustreamer. Use together with `-e EDID_HEX=xx` to specify custom EDID data.
 
 -----
 # Raspberry Pi Camera Example
diff --git a/pkg/docker/entry.sh b/pkg/docker/entry.sh
index 792c7fa..4ea91af 100755
--- a/pkg/docker/entry.sh
+++ b/pkg/docker/entry.sh
@@ -2,7 +2,7 @@
 
 set -e
 
-[ -z "$NO_EDID" ] && {
+[ -n "$EDID" ] && {
 	[ -n "$EDID_HEX" ] && echo "$EDID_HEX" > /edid.hex
 	while true; do
 		v4l2-ctl --device=/dev/video0 --set-edid=file=/edid.hex --fix-edid-checksums --info-edid && break