[Q] Light sensor values - Galaxy Note GT-N7000 Q&A, Help & Troubleshooting

Can someone try out the app androsensor and check what values the light sensor reports?
Mine only reports 5 values:
0, 10, 100, 1000 and 10000.
0 - total darkness
10000 - right next up to a light
It should report a much broader range of values. This should also cause worse auto-brightness, since the device only has five light values on which to chose, instead of a few thousand.
I suspect this is a software issue and could be fixable.
Edit:
Running Rocket ROM v11.

honf said:
Can someone try out the app androsensor and check what values the light sensor reports?
Mine only reports 5 values:
0, 10, 100, 1000 and 10000.
0 - total darkness
10000 - right next up to a light
It should report a much broader range of values. This should also cause worse brightness, since the device only sees five light values instead of a few thousand.
I suspect this is a software issue and could be fixable.
Edit:
Running Rocket ROM v11.
Click to expand...
Click to collapse
Tested it . Only got 3 values 10,100 ( at 10 cm of a lamp ) and 1000 right at the lamp. Never even got 10000.
So you probably found something , but how fix it ?

It appears to be a common "feature" across several devices. Though some report different values, they are generally kept to within six to seven values.
For information on other devices, check out the submition on reddit

Related

Curious behavior of SPB Benchmark

Wondering if anyone else is noticing this behavior..
Run just the graphics tests (DDB, DIB, GAPI)
Results should be in the range of 4, 24, 6, or 7, 32, 28 depending on the driver set you're using..
Make sure you're plugged in to the comp and synced, backlight is on auto brightness, and set to turn off asap (30 sec batt/1 min ac)
Now select the file test "Directory list of 2000 files" along with the graphics test.
Now run the tests. During the 2000 file read test, the device's display should dim. This should happen just before the first graphics test.. what are your results now?
On my side the results are drastically different. I'm wondering if this is a glitch with SPB Benchmark, or a glitch with the graphics drivers, or a glitch with the power management system.. or if the graphics driver is just updating the screen less when the backlight is dimmed, and thus yielding higher results.
Bump, anyone wanna give this a try? Only take 10 minutes..
First test was 7, 25, 7.
For the second test, my Raphael did dim, and the results are 6, 23, 6.
The screen did not flicker so much like during the undimmed tests. The undimmed DIP flickers much, the dimmed one nearly always shows the complete picture.
Another undimmed try resulted in 8, 25, 6.
I hope this helps

light sensor 'stuck' or badly calibrated

Anyone seen their light sensor get 'stuck' or just badly calibrated?
Mine reports super low values unless you hold it right up to a light bulb, then it says 'dim room' or something similar lol.
'
This all started happening after I tested out killswitch application (which uses the light sensor) which I think killed it. I've uninstalled and rebooted but now my light sensor is stuck in above state.
Anyone know how to recalibrate?
Bump and even more confusingly, I'm now on overcome 2.0 rc1 and even full restock and flash to new rom didn't fix it. What the...
Sent from my GT-P1000 using Tapatalk
Its a known Issue to samsung light sensor auto brightness is screwed. They fixed it with Galaxy S2 upgrade. I wish someone would port it for our tabs
oh snap it was working OK before that app broke it, no joking.
And the broken-ness carried across a full restock and upgrade from Overcome 1.45 to Overcome 2.0 (froyo --> gingerbread). So something is very weird, I hope you're right and that its a SW problem not hardware.
Also lightsensor problem with brand new Tab 7.7
I also have a problem and nSamsung doesn't even answer to my cries for help (Samsung Belgium redirected me to Samsung the Neteherlands and they do not reply at all).
I downloaded different luxmeter apps and general sensor apps they give as measurement result 12, 120 or 1200 lux (seems they output the range or lower or upper limit of the range the sensor is on, not the actual value). The sensor datasheet says it has a resolution of 1 lux.
Any solution would be much appreciated, I intende to use the sensor as a luxmeter and write an app for it taht needs the luxvalue ! But as it is now, the tablet is completey useless for this because the OS/driver software not working properly

Is the pink tint on all devices or is it a defective screen issue?

Hi, I have noticed the pink tint to the screen when using adaptive brightness below 30-40% and was wondering if it effects all devices.
I have read a lot of people talking about it and that it happens because the screen goes so dark and some people are saying that it is supposed to happen. Is this true and if not is it effecting all devices?
I am on my 3rd device now the first one i took back after a few hours as the screen was tinted really yellow and uneven and my second one had image retention pretty bad and would happen after 5 seconds of the nav bar being displayed and i dont know if it effected them as i didnt try adaptive brightness as i didn't ha e them for long enough.
The one thing i find really weird though is that i have been using the lux app to test if it was to do with the phone going so dim and while there is a slight pink tint when putting the brightness down on the lux app it is no where near as bad as when adaptive brightness is being used and the lux app goes a lot darker.
Thanks.
I've seen all does it specially at night. I consider this is normal
Its because you're brightness is below 0. If you use adaptive brightness at night its lower than 0 without adaptive brightness. You will see the same thing if you use the lux brightness app.
Edit: I noticed you used the lux app, you're correct its not as bad with it, but it's still there. I could be a software implementation or a bug for all we know.
So it is actually on all devices and not a select few?
I got 7 days to return it for another one but if it is on all devices and there is nothing that can fix it i dont think there is no point in risking it for another nexus 6 that could have a worse screen like uneven colours.
lew87ys said:
So it is actually on all devices and not a select few?
I got 7 days to return it for another one but if it is on all devices and there is nothing that can fix it i dont think there is no point in risking it for another nexus 6 that could have a worse screen like uneven colours.
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Search
http://arstechnica.com/gadgets/2014...e-premium-price-still-comes-with-compromises/
lew87ys said:
So it is actually on all devices and not a select few?
I got 7 days to return it for another one but if it is on all devices and there is nothing that can fix it i dont think there is no point in risking it for another nexus 6 that could have a worse screen like uneven colours.
Click to expand...
Click to collapse
This is more of a feature than a defect, frankly...
Not that it is pink, but that it can be dropped down as low as it can.
Basically, there is a minimum brightness threshold. The lower the brightness, the less power it consumes. If you set the brightness below a certain point, the colors (because of the nature of the amoled) will start to mess up a bit. Most vendors will set the minimum brightness high enough to not have this happen. Google sets it a bit lower to save a bit more power, without making the colors go *entirely* crazy by setting it WAY too low.
Its made like that to conserve power. All nexus 6 are like that
I thought it was a defect too until I started researching and like someone suggested turned off adaptive brightness which made the tint go away completely even at lowest brightness setting.
Sent from my Nexus 6 using XDA Free mobile app
pwc realtor said:
I thought it was a defect too until I started researching and like someone suggested turned off adaptive brightness which made the tint go away completely even at lowest brightness setting.
Click to expand...
Click to collapse
Adaptive brightness is actually a really nice feature.
If the pink bugs you too much, you can (if you know your way around a compiler, that is...) bump up the minimum a little.
What if adaptive brightness is off, and the brightness is set to at least 70%, and the pink tint crap still happens? kernel issue? nougat issue? Because it's very annoying, randomly happens to me. usually, going into twrp and clearing cache fixes it. sometimes it doesn't though.
Help.
EDIT
Never mind. I figured it out. it was night mode that was causing the pink tint via purenexus settings.

Question Has anyone checked that adaptive display (LTPO) already works fine?

The March news that they talk about an update to correct that, they show a YouTube video, to demonstrate that it already works well!
Oppo Find X3 Pro starts receiving update, finally has 1 Hz-120 Hz adaptive refresh rate
The panel supports it naturally, but Oppo shipped some units without the feature. Oppo launched the Find X3 Pro with an LTPO screen, and in theory, it...
m.gsmarena.com
The interesting thing about the video is that there are two frequency counters (one green, which is activated from the "developer options" and the other in purple or something similar). The fact is that the green counter continues to mark the usual and the other marks the improved frequencies.
I do not know if it will be a problem with the counter, which comes in developer options!
The pity is that the boy in the video does not inform, which is the app that he uses
Mm, my dev option only shows a constant 120.
Ufo refresh test shows it at 60 on idle and 120 on movement.
I tried two apps from the store and dev tools. They all show the same refresh rate.
I'm noticing though that the browser, or any browser based apps switches back to 60.
Haven't seen any other rates than 60 and 120 though.
120 also never seems to lower when not scrolling.
YouTube and Netflix show 60.
Same here. 120 Hz for most of the time, occasionally dropping to 60. Nothing inbetween or lower than 60. Strange because the reviews said that this was initially the case but that a later firmware had successfully enabled the fully variable refresh rate.
The spec on their own website says 60hz or 120hz ( max )
I'm sure I read variable somewhere before I bought the device.
I've let's on for 2 days an application called display check and what I see is 3 different frequencies (60, 90, 120) and also on aod you can see an lower frequency because when you move your smartphone quickly you can see the twinkle of the pixels (normally on aod oppo say 1 here)
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Question Auto brightness too low

Hello, 3 days ago I bought oppo x3 pro. Phone is awesome, but auto brightness works very bad... It keep decreasing screen brightness to very low level.
I never seen something like that, Samsung S20 works much better, well, even realme x50 works normal. To use phone I had to disable auto brightness. Is there anything like adaptive screen brightness, I read somewhere that samsung by the time learn my preferences, and keep good brightness. Tired this with oppo for 3 days, but seems it doesn't have that option.
troxter said:
Hello, 3 days ago I bought oppo x3 pro. Phone is awesome, but auto brightness works very bad... It keep decreasing screen brightness to very low level.
I never seen something like that, Samsung S20 works much better, well, even realme x50 works normal. To use phone I had to disable auto brightness. Is there anything like adaptive screen brightness, I read somewhere that samsung by the time learn my preferences, and keep good brightness. Tired this with oppo for 3 days, but seems it doesn't have that option.
Click to expand...
Click to collapse
If it is the same mechanism as in OnePlus (not sure about it) - then the phone will "learn" after you manually set the brightness to proper level. Give it 2 weeks.
Btw. Rydzyk in avatar, hope youre not the real one
Real Tadeusz here
I was teaching for 3 days, but without success. Will try for a week now
thanks
Try clearing system cache and data in the relevant apks.
Test the light level sensor to see if it falls within an acceptable range.
I use manual brightness control almost always; doing so saves battery, retinas and sanity.
It also reminds you when it's too bright and your frying your display.
Same here. Helped me out with Lux Brightness and set the minimum brightness to 30. Works fine for me.
To me in Realme 8 it seems to have learn a minimum value for auto brightness instantly, I just set a minimum a little above of the default level (It was very low), and the phone remember that level onwards
well, mine surely isn't 'learning', it keeps defaulting to the lowest value, which is waaay to low.
Are there any alternatives to Lux Brightness that you know off?
latino147 said:
well, mine surely isn't 'learning', it keeps defaulting to the lowest value, which is waaay to low.
Are there any alternatives to Lux Brightness that you know off?
Click to expand...
Click to collapse
What happens to me is that the default auto brightness deactivates itself when it wants, and reactivates also when it wants, very annoying. So I deactivated manually the auto brightness and tried Velis Auto Brightness, this app is a little complicated but works quite well, just you have first to understand the app itself and then tweak a little to your convenience. It has a little bug in Android 11, the notification of lux and % of brightness screen disappears after some time but doesn't affect the app itself. Take a look https://play.google.com/store/apps/details?id=com.velis.auto.brightness
josejoa said:
What happens to me is that the default auto brightness deactivates itself when it wants, and reactivated also when it wants, very annoying. So I deactivated manually the auto brightness and tried Velis Auto Brightness, this app is a little complicated but works quite well, just you have first to understand the app itself and then tweak a little to your convenience. It has a little bug in Android 11, the notification of lux and % of brightness screen disappears after some time but doesn't affect the app itself. Take a look https://play.google.com/store/apps/details?id=com.velis.auto.brightness
Click to expand...
Click to collapse
Thanks! I'll check it out

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