TDA4VM: SDK_09_01：Display can not burning up

Hi Damon,

Yes, this issue is still under debug and we have not found the fix for it. We will update as soon as we get some fix.

Regards,

Brijesh

Sad,,, 

So what about the other part? DSI or CSI_TX？Can they work normally?

Hi,

Yes, DSI and CSITX will work fine. It is just eDP->HDMI is not working fine. 

Regards,

Brijesh

Hi,

Thanks, I'll try this way.And cuold you please estimate how long it will take to fix the issue of eDP ->HDMI? The project time is quite tight.

Brijesh Jadav said:

Yes, DSI and CSITX will work fine. It is just eDP->HDMI is not working fine. 

Regards,

Damon

Hi Damon,

As per the bug report, the fix should be available in SDK9.2 release. but we have not still found the fix for it.

Regards,

Brijesh

Hi Brijesh,

Thank you for the patch.Now it can be displayed normally.Appreciate!
Regards,
Damon

Hi Brijesh,

There seems to be another issue: After the SOC system is started, The screen still displays nothing. The screen only starts displaying After I run the demo app.Then I found it related to calling 'tivxDisplayNode' in the Create Graph phase.
Have you seen the same issue?
Regards,
Damon

Hi Damon,

Well, actual display starts only after display node is created, so i think its matching the implementation, isn't it? Do you expect to display something even before starting the graph?

Regards,

Brijesh

Hi Brijesh,

In SDK8.5, it will display the background color we set(not black color) for the DSS layer before starting the graph. 

When there are some display issues, it can help us determine whether it  is due to the DSS or the app running abonormally.

Brijesh Jadav said:

Do you expect to display something even before starting the graph?

Regards,
Damon

Hi Damon,

ok, it might be changed in the display controller. It is easy to change to whatever background color required in backGroundColor variable in app_dss_defaults.c file. It is set to 0x0 by default, which is black in RGB format. 

Regards,

Brijesh