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graphics/lvgl: Upgrade LVGL to v9.4.0 #3253

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@terry0012
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@terry0012 terry0012 commented Dec 17, 2025 •
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Note: Please adhere to Contributing Guidelines.

Summary

  • Update CMakeLists.txt to use LVGL v9.4.0
  • Update Kconfig with new v9.4.0 configuration options
  • Update Makefile with new LVGL version

Impact

LVGL

Testing

test with rv-virt:lvgl64_vector created by another PR in nuttx repo (apache/nuttx#17532)

@terry0012 terry0012 mentioned this pull request Dec 17, 2025
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graphics/lvgl: Upgrade LVGL to v9.4.0
4c9320f 
- Update CMakeLists.txt to use LVGL v9.4.0
- Update Kconfig with new v9.4.0 configuration options
- Update Makefile with new LVGL version

Signed-off-by: rongyichang <rongyichang@xiaomi.com>
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simbit18 commented Dec 18, 2025 •
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@terry0012 Question:

After this bump, will it be possible to use previous versions of LVGL (v9.2.1) ?

It might be useful to choose the version and allow compatibility with older versions.

linguini1
linguini1 requested changes Dec 18, 2025
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Can you please include the results of your test?

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terry0012 commented Dec 23, 2025 •
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@terry0012 Question:

After this bump, will it be possible to use previous versions of LVGL (v9.2.1) ?

It might be useful to choose the version and allow compatibility with older versions.

after this bump，we can not use v9.2.1 version

@terry0012
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terry0012 commented Dec 23, 2025 •
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Can you please include the results of your test?

Which test results would you like to see, and could you provide the test cases for lvgl?
lvgl example，unit test or others.

acassis
acassis reviewed Dec 23, 2025
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@terry0012 please include a comment about the LVGL version supported on NuttX:
https://nuttx.apache.org/docs/latest/applications/graphics/lvgl/index.html

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linguini1 commented Dec 23, 2025 •
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Which test results would you like to see, and could you provide the test cases for lvgl?
lvgl example，unit test or others.

I don't know of any NuttX unit tests for lvgl, but I meant your test on rv-virt:lvgl64_vector. What was tested and what was the result?

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@cederom cederom Awaiting requested review from cederom

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@terry0012 @simbit18 @linguini1 @acassis