![Please help me to mirror my Pixelbook desktop to Chromecast Ultra full screen, if I cast YouTube or Netflix no problem, but if I mirror my desktop I have these 2 black Please help me to mirror my Pixelbook desktop to Chromecast Ultra full screen, if I cast YouTube or Netflix no problem, but if I mirror my desktop I have these 2 black](https://preview.redd.it/ila6mgltfbi21.png?auto=webp&s=ea69c0a22b423419063d68916eb91067554bbe2b)
Please help me to mirror my Pixelbook desktop to Chromecast Ultra full screen, if I cast YouTube or Netflix no problem, but if I mirror my desktop I have these 2 black
![GA00439-NO, Google Chromecast 3 Digitaler Multimedia-Receiver, HDMI, WLAN 802.11ac, Micro-USB, 40 g, Carbon | EET GA00439-NO, Google Chromecast 3 Digitaler Multimedia-Receiver, HDMI, WLAN 802.11ac, Micro-USB, 40 g, Carbon | EET](https://product-images.eetgroup.com/images/700px_jpg/Img_24860443.jpg)
GA00439-NO, Google Chromecast 3 Digitaler Multimedia-Receiver, HDMI, WLAN 802.11ac, Micro-USB, 40 g, Carbon | EET
![why is my chromecast not fullscreen? like the image is smaller than the tv and its annoying how do i fix it : r/Chromecast why is my chromecast not fullscreen? like the image is smaller than the tv and its annoying how do i fix it : r/Chromecast](https://preview.redd.it/wcsmn6sw30681.jpg?auto=webp&s=8184536613623f3c1d4ac5b740522375be279c00)