diff --git a/docker/rocm/README.md b/docker/rocm/README.md
index a007fd55a..f1a21b190 100644
--- a/docker/rocm/README.md
+++ b/docker/rocm/README.md
@@ -1,16 +1,32 @@
 
 # AMD/ROCm GPU based detector
 
+## Building
+
+Running `make local-rocm` results in following images:
+
+- `frigate:latest-rocm`, 7.64 GB, all possible chipsets
+- `frigate:latest-rocm-gfx1030`, 3.72 GB, gfx1030 and compatible
+- `frigate:latest-rocm-gfx900`, 3.64 GB, gfx900 and compatible
+
 ## Docker settings
 
-AMD/ROCm needs access to `/dev/kfd` and `/dev/dri`. When running as user also needs the `video group. Sometimes also needs the `render` and `ssh/_ssh` groups.
+AMD/ROCm needs access to `/dev/kfd` and `/dev/dri`. When running as user also needs the `video` group. Sometimes also needs the `render` and `ssh/_ssh` groups.
 For reference/comparison see [running ROCm PyTorch Docker image](https://rocm.docs.amd.com/projects/install-on-linux/en/develop/how-to/3rd-party/pytorch-install.html#using-docker-with-pytorch-pre-installed).
 
 ```bash
-$ docker run -it --device=/dev/kfd --device=/dev/dri --group-add video \
+$ docker run --device=/dev/kfd --device=/dev/dri --group-add video \
     ...
 ```
 
+When running on iGPU you likely need to specify the proper `HSA_OVERRIDE_GFX_VERSION` environment variable. For chip specific docker images this is done automatically, for others you need to figure out what it is. AMD/ROCm does not officially support the iGPUs. See the [ROCm issue](https://github.com/ROCm/ROCm/issues/1743#issuecomment-1149902796) for context and examples.
+
+If you have `gfx90c` (can be queried with `/opt/rocm/bin/rocminfo`) then you need to run with the gfx900 driver, so you would modify the docker launch by something like this:
+
+```bash
+$ docker run ... -e HSA_OVERRIDE_GFX_VERSION=9.0.0 ...
+```
+
 ## Frigate configuration
 
 An example of a working configuration: