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| author | Clayton Craft <clayton@craftyguy.net> | 2024-12-27 17:21:21 -0800 |
|---|---|---|
| committer | cooljqln <cooljqln@noreply.codeberg.org> | 2024-12-29 23:02:54 +0000 |
| commit | 8a6c41be459d1eefa874137a6961434640d2a5e4 (patch) | |
| tree | ce3526134cb3f2850221d8a14367f726b36d4037 | |
| parent | d985cfb5fbc500f6b32c34383a900f7fe0604c1f (diff) | |
| download | tangara-fw-8a6c41be459d1eefa874137a6961434640d2a5e4.tar.gz | |
display: set lower limit for brightness
Fixes #158
| -rw-r--r-- | src/drivers/display.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/drivers/display.cpp b/src/drivers/display.cpp index 7321f20b..15cd6c62 100644 --- a/src/drivers/display.cpp +++ b/src/drivers/display.cpp @@ -194,6 +194,10 @@ auto Display::SetDisplayOn(bool enabled) -> void { } auto Display::SetBrightness(uint_fast8_t percent) -> void { + // Set a lower limit of 7%, below this the backlight turns off. + // See https://codeberg.org/cool-tech-zone/tangara-fw/issues/158 + if (percent < 7) + percent = 7; brightness_ = std::pow(static_cast<double>(percent) / 100.0, 2.8) * 1024.0 + 0.5; if (first_flush_finished_ && display_on_) { |