Monitor comes back from standby without f.lux colors [fixed in new beta]

herf

i.e. does it happen always, or just some of the time? Are there any steps you can write down to explain it?

disqQ

@herf said in Monitor comes back from standby without f.lux colors:

i.e. does it happen always, or just some of the time? Are there any steps you can write down to explain it?

It happens everytime.

Have f.lux installed;
Go away from your computer for a few minutes;
Come back and make sure that the monitor is in standby;
Move the mouse;
See that the screen color temperature is reset to daylight;

It's exactly the same as @korg250 wrote on this thread: https://forum.justgetflux.com/topic/3857/f-lux-resets-color-temperature-when-laptop-lid-is-closed

If, after opening the lid, I stay in the same window, the color stays as daylight. It is only back to normal (as set by the schedule) after I change to another window. Changing between tabs in a browser does not trigger f.lux to fix the color. The color is fixed at once, not slowly.

With the only difference that this is a desktop and doesn't have lid's.

Edkiefer

@disqQ I have the same issue, when display goes to sleep/standby and you wake it with mouse at night time, my screen comes back with daytime settings.
If I go to tray and bring flux up it changes to proper values.

I am on desktop 3570k/GTX 970 it happens on last few drivers (it has never worked correctly with new 4.x beta. the old 3.0v worked w/o issues.
I am on Win10 1703 and 384.76 drivers if that maters.

herf

So as far as I can tell, the only difference here is: it works on Kepler (GTX650), but fails on Maxwell (GTX970) and Pascal (GTX1070).

The latter two are capable of 10-bit color, while the Kepler appears only to do 8 bit (a clue?)

Or alternately, there is some way these machines are sleeping that is different than mine. (Using the normal Windows power saving).

f.lux is watching for wake from sleep and power saving modes to work around "most" of the issues here, but maybe there is one more case we are missing.

herf

I found a cheap GTX 1050Ti card and will test later this week when it arrives.

disqQ

@Edkiefer said in Monitor comes back from standby without f.lux colors:

@disqQ I have the same issue, when display goes to sleep/standby and you wake it with mouse at night time, my screen comes back with daytime settings.
If I go to tray and bring flux up it changes to proper values.

I am on desktop 3570k/GTX 970 it happens on last few drivers (it has never worked correctly with new 4.x beta. the old 3.0v worked w/o issues.
I am on Win10 1703 and 384.76 drivers if that maters.

Thanks for your feedback @Edkiefer
I also have an i5 3570K but i doubt the CPU is at fault here. Installed the 384.76 drivers as well and the problem is still here.

@herf Well, i would like to have the problem fixed but if that takes buying a new GPU just for the case, don't bother and save your money.

herf

GTX 1050Ti does not show the bug either (but at least I can run some machine learning on the GPU now). So I need help with steps to reproduce this bug.

My configuration:

Running f.lux 4.34 (with fix for monitor sleep)
NVIDIA Driver 384.76
GTX 1050Ti

What I'm doing to test this:

Test 1

Under Power & sleep, set "when plugged in, turn off after [1 minute]
Set f.lux to CCT like 3000K
Wait for monitor to sleep
Wake up a few seconds later
=> Colors are preserved

Test 2

Set f.lux to CCT (3000K)
Start > Sleep
Wait for monitor to sleep
Wake up a few seconds later
=> Colors are preserved

What case are you seeing that I'm missing?

disqQ

Yea, those are the steps i'm doing with the same software/drivers.

On test 1 If I stay in the same window, the color stays as daylight. It is only back to normal (as set by the schedule) after I change to another window. Changing between tabs in a browser does not trigger f.lux to fix the color. The color is fixed at once, not slowly.

On test 2 when i wake it up the colors are preserved on the login screen but as soon as i click sign-in it blinks to daylight colors and back to the previous one.

Edkiefer

If I do same thing on my end, I can open flux so I see flux window and slider at 3K value.
Let it sleep for 1 min, move mouse so it wakes.
Slider is at 3K and says 3000 value but screen is daylight and then if I click taskbar or flux icon it then goes to 3000

That is with nothing running, but if i do have browser open, same thing.

Edit I can't do sleep/hibernation from start as I have them disabled with powercfg.exe, so I can't run test 2, all my comments are with monitor/display sleeping.

Edit2: are you using a color profile for display? , or you have all defaults.
Win10 >all settings>display>display adapter properties> click color management and I use a ICC profile (dell2007FP) for my Dell monitor.
In that window I have enabled checkmark "use my settings for this device"

herf

Thanks,
I have it failing now - turns out I had to turn off the login screen on wake, or it would hide the problem.

disqQ

@Edkiefer I have a custom .icc profile for my Dell as well but i already tried with the default one and the problem persists.

@herf So you finally reproduced the issue on your end?

Edkiefer

Good, At first I thought it maybe one of settings, but tried all , on/off with same results.

I login with admin, so i never see that screen (except for sec on boot)

herf

Apparently finding out that a monitor has slept is one of the unsolved problems in Windows. I made a workaround for this case here:

https://justgetflux.com/flux-setup4-35.exe

See if it works?

Edkiefer

Need more testing, but after reboot it seems so far to work (2 times so far pass).

disqQ

Yep, it's fixed! In both Tests, all good now.

Thanks

korg250

This post is deleted!

korg250

@herf

I updated to 4.35 and the issue was fixed only if my monitor turns off as a result of power option being triggered (ex: "turn off the display" after 1 minute idle).

If the display turns off when I close and open my laptop lid, the issue remains, exactly like @disqQ 's description on test 1:

On test 1 If I stay in the same window, the color stays as daylight. It is only back to normal (as set by the schedule) after I change to another window. Changing between tabs in a browser does not trigger f.lux to fix the color. The color is fixed at once, not slowly.

Thanks.

I am using Win10 Pro with Intel HD Graphics 4400.

CrazyDef

This has started happening to me since a recent Windows 10 update (I think).

When my monitor switches back on after me being idle, f.lux is not working. I have to alt+page up/down to get it to activate again.

I'm using f.lux 4.120.

herf

Can you post f.lux options > driver info?