# raspivid with awb off gives black image

I want to turn off auto white balance for my raspivid stream. However, when doing that, the image turns completely black. Why? And how do I fix this?

• Yes, I know that question. Did not help. I have tried -awb off -ex off -sa -10 and different combinations. I think it is very weird that turning awb off messes at all with the exposure. – Arne Dec 3 '17 at 19:56
• I also tried to use -awbg X to set the awb gains. But I get an error that the option is not known. Google indicates this is a common problem... – Arne Dec 3 '17 at 20:19
On the official forums I got the answer. I need to set red and blue gains in the awbg parameter: -awbg '1.0,1.0'.