Develop Bugs

[Q] CM7 Light sensor issues

Hello,
I recently bought an Incredible for my girlfriend on craigslist. It was only 2 months old (in great condition to boot). Either way after flashing CM7.0 I noticed that the automatic backlight setting did not work. I just set it to around 25% and figured I would figure it out later. After 7.0.2.1 came out I flashed that and no change. I then decided to figure it out. It seems that after waking the sensor doesn't work unless really flooded with direct bright light (such as the flash light from my incredible). After that it works mostly as intended.
Here is how I tested it. I lock the phone when in the custom light levels screen. When unlocking the Sensor (filtered / raw) is at 10/10 and will not change no matter what I do until I hit it directly with a bright light. I believe that it will also change eventually letting it just sit. Most of my tests involved using bright light sources. After that the sensor works just fine and changes almost instantly when I cover it with my hand and then move it into regular room light. Is this a known issue? I checked the bug tracker briefly but did not see anything. I have had two others test. One had fine light sensor response the other had the same issue as me.
Anyone have any idea?

I've noticed that the automatic brightness does work, but at the default levels its way too dark. Had to go info the menu and bump up all the levels and it's alright now. Doesn't seem like it works quite as smoothly as it does on sense roms but I haven't gone through and tweaked everything perfectly, I honestly don't understand all the adjustments that are available.
Sent from my ADR6300 using XDA App

k_nivesout said:
I've noticed that the automatic brightness does work, but at the default levels its way too dark. Had to go info the menu and bump up all the levels and it's alright now. Doesn't seem like it works quite as smoothly as it does on sense roms but I haven't gone through and tweaked everything perfectly, I honestly don't understand all the adjustments that are available.
Sent from my ADR6300 using XDA App
Click to expand...
Click to collapse
It does work but the sensor doesn't respond in a timely fashion.

Have you tried changing the sample interval?
Sent from my ADR6300 using XDA App

What settings are you using? I.E. do you have filtering enabled? What is your window length? Sample interval? Etc.
I've never seen anyone discuss this as a CM7 bug. Based on the way you are describing it, it sounds like you might just need to tweak your settings.
For example, if your window length is very long and sample interval slow, that might be why your readings are taking so long to update. As for why the reading changes as soon as you hit it with a bright light, you could be tripping the reset threshold.
Just in case you haven't checked it out already:
Numerical explanation of the CM7 automatic backlight settings

I will check when she gets off work. All I did was flash cm7. I didn't mess with light sensor settings.

Ok... I have checked it... Not good. Sample intervals were set to 1s. Even still they were not enabled. Messing with the settings didn't yield any results either. It was still sluggish until hitting it with bright light...

I would search, there are multiple threads around where people have posted their settings, I would try those then tweak it to your liking. Also check out byrong's thread, the man knows his stuff.
Sent from my ADR6300 using XDA App

The automatic brightness sucks on stock as well. Just turn it off. You can't see the screen in bright sunlight no matter what the setting is, and you can see it just fine at 64/255 inside. All the automatic brightness does is give you a headache.

Screen flickering after 4.0.4 update

Hi there, does anyone else experience screen flicker after latest update? I have never had it before, but after updating it does it now and then. Is there any easy fix for it?

eadred said:
Hi there, does anyone else experience screen flicker after latest update? I have never had it before, but after updating it does it now and then. Is there any easy fix for it?
Click to expand...
Click to collapse
Hi!
I experienced flicker after the update. After an factory reset and an battery charge it was gone. Now there's none. Maybe not an easy fix but worked for me!
Skickat från min HTC One X via Tapatalk 2

eadred said:
Hi there, does anyone else experience screen flicker after latest update? I have never had it before, but after updating it does it now and then. Is there any easy fix for it?
Click to expand...
Click to collapse
Guys if I remember correctly, the flicker fix
works like this. It takes time to kick in. Just be patient few says and it should be better.
Aja82 said:
Hi!
I experienced flicker after the update. After an factory reset and an battery charge it was gone. Now there's none. Maybe not an easy fix but worked for me!
Skickat från min HTC One X via Tapatalk 2
Click to expand...
Click to collapse
No action required. Just leave the kernel to do its job
Sent from my HTC One X using Tapatalk 2

eadred said:
Hi there, does anyone else experience screen flicker after latest update? I have never had it before, but after updating it does it now and then. Is there any easy fix for it?
Click to expand...
Click to collapse
In what application do you experience this flicker? is there a certain steps to encounter this? i haven't experience this yet. maybe a restart will help.

griffin0420 said:
In what application do you experience this flicker? is there a certain steps to encounter this? i haven't experience this yet. maybe a restart will help.
Click to expand...
Click to collapse
Grey background, white background, under lamp, in the dark. Depends, but if you don't have it or don't see it do not try to find it.
It's a big issue many threads, long threads, search but rather don't.
Sent from my HTC One X using Tapatalk 2

As i never had any flickering, i could presume it is very deep hardware fault and not a software issue, should be repaired by warranty

Raider0001 said:
As i never had any flickering, i could presume it is very deep hardware fault and not a software issue, should be repaired by warranty
Click to expand...
Click to collapse
Uf lets do not get this down this road again....
Please do not mention hardware fault again....It has nothing to do with this matter....
It might be a hw fault, malfunction, etc. But the ota before this .11 fought against it. Meaning the flickering was minimal or gone for most of us.
Now the technical description I do not know. But in more informed threads there was written that the kernel needs time to adapt to make the flickering go away. And most ppl that had flicker pre .11 were helped in matter of hours or days.
So I believe the flickering will be gone also after some usage. Lets get back to this in few days.
And guys who have nothing better to do as to say, it might be a hardware issue, please dont. I would like if only ppl that know what the flickering is about would write in this thread.
So if you never had it, dont have it now. Please ignore this thread ok?
Thank you
Dont wanna sound arrogant or condescending Raider, but I had fights about this already in custom rom threads. I do not wanna go there again. Sorry.

Why we cant see guy problem s profile? 4 th guy with problem, but dont know his profile, I mean messeges.
Htc One X Venom ViperX Rom + faux123 s kernel + Rezound Mod

So 10 days after the update, even though I had few reflashes, so maybe that doesnt help much, but still the flickering is still there.
Anyone else still has flickering now after a longer 4.0.4 usage and did it get better for some?

I had this before the update, then updated and waited 3 days on full brightness (i.read it has to settle with voltage or some stuff). Maybe you could try having it on full brightness? Not saying it will work & believe me, I understand your pain! Hope something works for you soon!
Keep us updated!
Sent from my now amazing HTC One X thanks to TeamVenoms ViperX rom

My HTC One X screen flickers only when on auto-brightness
Hi,
What do you mean exactly with 'screen-flicker' issues?
Different people use this description for some very different screen issues,
so I don't know if yours is severely bad or just minor...
I personally did experience some light screen flicker when the display is on auto-brightness,
the screen then has short periods where it quickly switches its brightness, and I assumed this
was normal because it's trying to adjust the brightness to the environment lighting.
This effect is easily noticed when scrolling the settings screen and is completely gone
when I deactivate auto-brightness.
maybe this can be helpful...
grtz

steabert said:
Hi,
What do you mean exactly with 'screen-flicker' issues?
Different people use this description for some very different screen issues,
so I don't know if yours is severely bad or just minor...
I personally did experience some light screen flicker when the display is on auto-brightness,
the screen then has short periods where it quickly switches its brightness, and I assumed this
was normal because it's trying to adjust the brightness to the environment lighting.
This effect is easily noticed when scrolling the settings screen and is completely gone
when I deactivate auto-brightness.
maybe this can be helpful...
grtz
Click to expand...
Click to collapse
I have the same thing going on.. it's like the backlight voltage is going up and down real fast.. after reading tons of topics on this matter I guess a lot of you guys are experiencing it.. so where is the official statement from HTC that the update should take up to two weeks to work for the screen???

REBOOT
eadred said:
Hi there, does anyone else experience screen flicker after latest update? I have never had it before, but after updating it does it now and then. Is there any easy fix for it?
Click to expand...
Click to collapse
Just off with HTC after the update last week. (Stock phone not rooted) My One X has been freezing especially on Facebook and twice a day rebooting itself. Slight flickering when scrolling..All errors were logged. Soft reset and Hard reset carried out several times, but no improvement.
HTC have put a service call on it and collecting the phone Thursday.

Murano1 said:
Just off with HTC after the update last week. (Stock phone not rooted) My One X has been freezing especially on Facebook and twice a day rebooting itself. Slight flickering when scrolling..All errors were logged. Soft reset and Hard reset carried out several times, but no improvement.
HTC have put a service call on it and collecting the phone Thursday.
Click to expand...
Click to collapse
Try flashing the RUU (this is the first thing HTC will do). It will wipe your phone, so back up. But test it before restoring.

Mine seems only to be flickering with Sense Launcher. No flickering with Nova Launcher. AND Nova is even smoother.
Sent from my HTC One X

Can someone explain, what this flickering is? It's not similar to the 'Recent Apps'/Grey Colour is it?

I purchased a brand new HOX yesterday which had a screen flicker. The flicker was only noticed on white.
I turned the phone on and was pushed 3 software updates, one after another and thought that after the updates the screen flicker would be solved. I ended up with the 4.0.4 update and the screen flicker was still there. I did a full factory reset and the screen flicker seems to have gone.
I will keep my eye on it, because if needed I can return it for a replacement within 30 days.
Has a factory reset worked for anyone else after updating to 4.0.4?

snapples said:
I purchased a brand new HOX yesterday which had a screen flicker. The flicker was only noticed on white.
I turned the phone on and was pushed 3 software updates, one after another and thought that after the updates the screen flicker would be solved. I ended up with the 4.0.4 update and the screen flicker was still there. I did a full factory reset and the screen flicker seems to have gone.
I will keep my eye on it, because if needed I can return it for a replacement within 30 days.
Has a factory reset worked for anyone else after updating to 4.0.4?
Click to expand...
Click to collapse
Not that I know of. I mean that a factory reset helps.
After it was flickering for me. I decided to go and test a custom kernel. Before the only reason I couldn't go with a custom kernel was the flickering. Only on stock it didn't flicker for me.
So as it was flickering I tried faux again, and now I do not notice it anymore.
Maybe it needed time to settle, maybe the UV helped? Or that I shutdown the capacitive buttons lights? I do not know...
But it can also be the change of scenery. As I was before on another continent

you need to wait till the update settles...

hamdir said:
you need to wait till the update settles...
Click to expand...
Click to collapse
hamdir read this :
My first comment here in the thread with a typo, says = days:
Guys if I remember correctly, the flicker fix
works like this. It takes time to kick in. Just be patient few says and it should be better.
Click to expand...
Click to collapse
And another one of me:
So 10 days after the update, even though I had few reflashes, so maybe that doesnt help much, but still the flickering is still there.
Anyone else still has flickering now after a longer 4.0.4 usage and did it get better for some?
Click to expand...
Click to collapse
So I took the time
I know I need to wait. What I didn't was how long. Hoped like hours, days, took 3 weeks
And I am still not sure its gone, as said different scenery or the other stuff, lights on buttons off, UV, etc

[Q] Flickering Backlight with version 3.14

Hey guys,
I bought a HOX with a broken touchscreen. I changed the whole display unit and that is fine now, but I had flickering backlight before and after changing the display unit.
I noticed this was a common error earlier, but I don't know if it still is? Is there any fix to it? I read that it was fixed back in october or so and my version is:
4.1.1
software number 3.14.207.27
sdk api 4.63
kernel 3.1.10-g946d78d
[email protected] #1
Can I fix it by flashing another kernel /ROM?
This is what I see:
I can't change display brightness. It doesn't matter whether I do "automatic", lowest or highest, nothing changes.
When It is charging: No or only light flickering
When it is not charging: If I do nothing at all, there is no flickering. as soon as I touch the screen or it has to process something, I have a light increase/decrease in brightness.
The backlight is NOT dead. It is only pretty low. I can still see if the room is dark and even when there is light shining in the room.
I am just bothered by not being able to adjust brightness and the flickering when not charging..
I have done a factory reset via bootmanager but it still is the same.
But I REALY like this phone so I'd realy love to keep it.
Any help?
I have no problems with flashing as I have flashed previous mobiles, but I would like to know whether there is a ROM/kernel that will fix this.

for example when I have the analog clock on the screen and it starts ticking forward each second, as soon as it starts moving, the screen goes darker a tiny bit.

I hace the same problemas. Did you fixed this issue?

Dont bother yourself with it, its not a problem, its very common, all one x's i handled had the same "issue", my current one also has it, just ignore it or put brightness around 50%, much less noticable
It has to do with tegra 3.
Sent from my HTC One X

:thumbdown::thumbup:
Sent from my HTC Explorer using xda app-developers app

I have investigated this further and came to a conclusion that this is something called smartdimmer, connected to tegra 3. I now just want to find out how to disable it ^^
Sent from my HTC One X

Auto Brightness not functioning

So my autobrightness seems to not really work, sometimes when its bright outside It seems like it might change a little but for the most part it doesn't change from the base brightness I have it set at I have to change it to suit my needs. Anyone see this problem with their phone? I had thought maybe jellybean would fix it but it doesn't appear to have.

There's a few of us having this problem. I think more would if they used their phones outside in the sun. It seems to be a JB flaw. I don't remember it happening on zv9. Although the display has always been an issue with heat and turning itself down to 63%.

I've seen this issue. Also it changes by itself going bright to dark and back again a few times a day. Does anyone else have the issue of a notification flash without a notification? Constantly flashing green led.
Sent from my LG-LS970 using xda premium

Screen looking washed out

Have any other Z5 premium users noticed that sometimes when you wake up the screen it looks super washed out almost LG G3 esque for a second or 2 then it goes back to looking normal?
Just wondering if there's an explanation, it's a common thing or i have a faulty handset.
Thanks

Darkwun said:
Have any other Z5 premium users noticed that sometimes when you wake up the screen it looks super washed out almost LG G3 esque for a second or 2 then it goes back to looking normal?
Just wondering if there's an explanation, it's a common thing or i have a faulty handset.
Thanks
Click to expand...
Click to collapse
Don't think it's faulty. Very noticable to me on very dark screens. If you turn off Adaptive Brightness in settings this doesn't happen. It's just trying to adjust the screen to a proper brightness.

I have had the same issue.
Normally if I wake the phone up directly into an app that had a dark background i can easily see this. I find that pressing the recent apps key, selecting another app and then going back into the washed out app helps to remedy the problem if it does not sort itself out.

This happens for me as well. Note this also happened on my z3. Im not all that worried about it. The washed out display is usually sorted within a few seconds. If it bothers you that much, turning off adaptive brightness get rid of the issue as mentioned earlier.

I've taken to using Lux Auto, it resolved the issue.

They talked about it on the Sony forums, there's a bug in the adaptive brightness and Sony said that they are fixing it for the 6.0 update
Sent from my E6853 using Tapatalk

Always notice it when I leave my keyboard open and lock screen. When I unlock it later the keyboard looks all washed out then fades back to normal. Never bothered me though on this or previous Sony phones
Sent from my E6853 using Tapatalk

Cheers for the answers guess i'll wait for this 6.0 update to drop to see if it fixes it

Darkwun said:
Cheers for the answers guess i'll wait for this 6.0 update to drop to see if it fixes it
Click to expand...
Click to collapse
Good Luck
We're on 7.0 and it is still not working. My screen becomes the dimmest in sunlight or bright days, that's exactly when I need it the brightest and it becomes dim - Sonny ? or Funny !
I am tired of this phone.
May 5th.
So when I am tired I am trying the most crazy things....
Installed LUX Auto Brightness - 48 hours and not a single problem.
https://play.google.com/store/apps/details?id=com.vito.lux
I organized the application a bit, Min brightness 40% , Max - 100% , link your 0 lux ambient to 60% brightness and use other good stuff.
This application controls the Z5 Brightness so that it gives me what need.
Of course my Z5 adaptive brightness is OFF.
I can not explain how this does it, even me being an EE, but still Job is done.
This was very frustrating so you can understand my excitement.