TX2 HDMI monitor Image tearing in Framebuffer mode.

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

Hello all,

How to solve the problem of image tearing. Tx2 r28.1

2

Please elaborate more about your case. It is not clear to know “Framebuffer mode” here.
Do you mean you open /dev/fb0 and write something directly?

1 Like
3

yes， WayneWWW

Open /dev/fb0 and write 1080p RGB video frame @30fps.

4

When the angle of the camera changes constantly, I can see the obvious tearing images display.

5

Hi suchb,

Do you call FBIO_WAITFORVSYNC ioctl after drawing one frame?

In fact, we don’t suggest users to use such interface directly. You can try to use our MMAPI sample from jetpack which guarantees non-tearing.

It is also compatible with usb or csi camera.

6

Thank you WayneWWW,

FBIO_WAITFORVSYNC looks like no effect.

Please tell me where MMAPI is.

Many thanks.

7

suchb,

MMAPI sample can be downloaded by jetpack.

8

Hello WayneWWW,

MMAPI means tegra_multimedia_api/samples?

Could you tell me which sample can replace FB interface?

9

Yes, that is mmapi sample.

Those samples with EGLrenderer in use are all able to render frames to display.