# UVC Server - can't change the resolution

Source: https://forum.modalai.com/topic/1577/uvc-server-can-t-change-the-resolution
Category: VOXL SDK and Software (https://forum.modalai.com/category/47/voxl-sdk-and-software)
Tags: mpa
Posted: 2022-11-28 11:06:33 UTC by marian
Replies: 3 · Views: 1374

## marian · 2022-11-28 11:06:33 UTC

Hi, I use an uvc camera which supports several resolution up to 3840 x 2160 @ 30fps. 

Using uvc-server whit default resolution is working just fine, but when I try to change the default resolution doesn't work anymore (I tried different resolutions, frame rates ...), as can see in the screen below:

![IMG_2896.jpg](https://forum.modalai.com/assets/uploads/files/1669633503596-img_2896-resized.jpg) 

Here is the voxl-version I use:
![IMG_2897.jpg](https://forum.modalai.com/assets/uploads/files/1669633574782-img_2897-resized.jpg) 

Can you please advice how to proceed?

## Reply by Eric Katzfey (ModalAI staff) · 2022-11-28 15:49:53 UTC

@marian Can you follow the guide here: https://docs.modalai.com/voxl-uvc-server/#helpful-tips? Please post the output from those commands so we can see what camera you have and what it supports.

## Reply by marian · 2022-11-28 19:15:34 UTC

@Eric-Katzfey Sorry for bothering you, I finally found the problem, the frame rate is very low when choosing better resolution than 640x480. Changing the frame rate accordingly it is working fine.

Thanks  for your support.

## Reply by Eric Katzfey (ModalAI staff) · 2022-11-28 19:35:23 UTC (in reply to marian)

@marian Oh yes, thanks for letting us know. When you are using raw frames over USB 2.0 you have to go to a much lower frame rate or else there isn't enough bandwidth to transfer them.