From 6b3aa768bd8a564f95e402276f053607d1027a9d Mon Sep 17 00:00:00 2001
From: tychovrahe <brunam@seznam.cz>
Date: Mon, 1 Jul 2024 13:15:43 +0200
Subject: [PATCH] fix(core/mercury): remove universal backlight fading
---
core/.changelog.d/3987.changed | 1 +
core/src/boot.py | 6 ++++--
core/src/trezor/ui/layouts/mercury/__init__.py | 1 -
3 files changed, 5 insertions(+), 3 deletions(-)
create mode 100644 core/.changelog.d/3987.changed
diff --git a/core/.changelog.d/3987.changed b/core/.changelog.d/3987.changed
new file mode 100644
index 0000000000..fccc1666e2
--- /dev/null
+++ b/core/.changelog.d/3987.changed
@@ -0,0 +1 @@
+[T3T1] Smoothened screen transitions by removing backlight fading
diff --git a/core/src/boot.py b/core/src/boot.py
index dd7a418c24..9e3086a839 100644
--- a/core/src/boot.py
+++ b/core/src/boot.py
@@ -57,7 +57,8 @@ async def bootscreen() -> None:
if can_lock_device():
enforce_welcome_screen_duration()
- ui.backlight_fade(ui.BacklightLevels.NONE)
+ if utils.INTERNAL_MODEL == "T2T1":
+ ui.backlight_fade(ui.BacklightLevels.NONE)
ui.display.orientation(storage.device.get_rotation())
if utils.USE_HAPTIC:
io.haptic.haptic_set_enabled(storage.device.get_haptic_feedback())
@@ -83,7 +84,8 @@ async def bootscreen() -> None:
if rotation != ui.display.orientation():
# there is a slight delay before next screen is shown,
# so we don't fade unless there is a change of orientation
- ui.backlight_fade(ui.BacklightLevels.DIM)
+ if utils.INTERNAL_MODEL == "T2T1":
+ ui.backlight_fade(ui.BacklightLevels.NONE)
ui.display.orientation(rotation)
allow_all_loader_messages()
return
diff --git a/core/src/trezor/ui/layouts/mercury/__init__.py b/core/src/trezor/ui/layouts/mercury/__init__.py
index 3a1aa1d2f2..b4720a58d1 100644
--- a/core/src/trezor/ui/layouts/mercury/__init__.py
+++ b/core/src/trezor/ui/layouts/mercury/__init__.py
@@ -192,7 +192,6 @@ class RustLayout(ui.Layout):
def _first_paint(self) -> None:
- ui.backlight_fade(ui.BacklightLevels.NONE)
self._paint()
if __debug__ and self.should_notify_layout_change: