Night Light doesn't stay ON after blank screen

solus-project / budgie-desktop

I Tawt I Taw A Purdy Desktop

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Night Light doesn't stay ON after blank screen #1284

Open fn-ix opened 6 years ago

fn-ix commented 6 years ago

Operating System: Solus 3.26.2 Budgie version: Budgie 10.4-150

The issue encountered

The night light doesn't stay on after reactivating the screen from the blank timeout state, even though it is set to ON in the settings. The night light has to be turned off and on again in the settings to reactivate it.

Steps to reproduce the issue

turn night light on in the settings
wait until screen turns blank
random input to reactivate screen
night light is not active anymore

Comments

I should add that this is a recent issue for me - I haven't used Solus in about a month, and after updating the system it appeared.

ghost commented 6 years ago

I can't reproduce this.

fn-ix commented 6 years ago

I have noticed that the issue seems to be related to the dimming function more narrowly - the night light deactivates as soon as the screen begins to dim.

fn-ix commented 6 years ago

The same problem happens when using redshift: as soon as the screen begins to dim, the redshift effect disappears, so it seems to be something related to the dimming function. Although with redshift, the color temperature change is weirdly applied again after around 10 seconds of interrupting the dimmer.

I also noticed that the dimmer doesn't actually reduce the backlight brightness level, but seems to apply another color change of turning everything black, so perhaps the problem is with that overriding the night light's color changes. Is the dimmer supposed to behave like this in all cases, or only on displays whose brightness it can't directly control?

cj-sv commented 6 years ago

I experience the same thing when waking the machine while it dims.

Ubuntu 17.10
Budgie 10.4

braindumped commented 6 years ago

I had the Issue already in 17.04... the screen starts to dim and nightlight is turned of. It can be restored by switching nightlight off and on again but also by changing something in the display config. e.g. flipping screen rotation or activating a second dispay

tribals commented 6 years ago

Confirm this bug on Solus 3, Budgie 10.4.

vinzv commented 6 years ago

Confirmed on Ubuntu Budgie 17.10 and 18.04-daily. Tested with 4 different machines (both laptops and desktop PCs).

fn-ix commented 6 years ago

I still have the issue, after the recent GNOME stack upgrade to 3.28.

vinzv commented 6 years ago

Issue still existing with Ubuntu Budgie 18.04 LTS. Can't reproduce with Debian Testing though.

fn-ix commented 6 years ago

The issue seems to have fixed itself, running Budgie v10.4-85-g36667bcb with GNOME stack 3.28.2.

ecovaci commented 6 years ago

I still have this issue on Ubuntu Budgie 18.04.1 LTS.

mtomczynski commented 5 years ago

Issue still here, basically vanilla installation of Solus 4.0, Gnome 3.32.1

ecovaci commented 5 years ago

Interestingly, this issue does not surface on Arch Linux Budgie 10.5.1

cseas commented 5 years ago

Issue confirmed on Ubuntu 18.04.2 LTS. Always reproducible.

bursap commented 3 years ago

Issue confirmed on Ubuntu 20.04.01, 5.4.0-52-generic #57-Ubuntu SMP Thu Oct 15 10:57:00 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

I change the NightLight color temp, the monitor turns yellowish (expected) and after 2-3 secs, it goes to standard color scheme itself (unexpectedly).