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authorailurux <ailuruxx@gmail.com>2024-12-30 11:04:33 +1100
committerailurux <ailuruxx@gmail.com>2024-12-30 11:04:33 +1100
commitf2198867538bec387bd54db8dc0ddca8b4a20e60 (patch)
treea2ad6645d6866b281c93c09531423a6107d93297 /src/drivers/display.cpp
parentdac29bf98632bb4450932b06e12328af48f1bb9e (diff)
parentff87c9217577783b60ee4cf466a3c59777a2fc40 (diff)
downloadtangara-fw-f2198867538bec387bd54db8dc0ddca8b4a20e60.tar.gz
Merge branch 'main' of codeberg.org:cool-tech-zone/tangara-fw
Diffstat (limited to 'src/drivers/display.cpp')
-rw-r--r--src/drivers/display.cpp4
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_) {