LVGL wayland, "No draw buffer" but works

General discussion
1

Hi,
currently working on lvgl with wayland on stm32mp2 board. Application is running good but when start the app i get a warning message from lvgl. which is -
“[Warn] (6928.705, +6928705) lv_display_refr_timer: No draw buffer lv_refr.c:386”

my question is, is it normal or here anything to worry? because although there is warning but application is running without any issue.

thank you.

LVGL version: 9.4
Board: STM32MP2
OS: Embedded Linux (yocto based)

2

Hi @Redoy

It was a bug in the previous version of the wayland driver which has now been resolved, the fix is now live in the latest master version of LVGL including a more performant SHM driver

To answer your specific question, no there’s nothing to worry about that warning