Htc Hd2 has only one flaw: outdoor display contrast. in the bright day contrast is not on the iphone display level.... if there is a possibility to increase display light and contrast?? i try lumos but result is same as before... I dont want to use antireflect foil or anything similar ....
I suppose that's very subjective. I use lumos with my own settings for the brightness curve (linear with a deep slope) and I can use it in daylight with no big issues.
In case you wanted to test, you probably could set the screen brightness to 100% manually from manila preferences to see if that suits your need, and then agjust lumos curve to your needs
I try again with lumos .... probably something I was not well set up ...
hey! -------> this time it's better and brighter!
But isn't the auto-backlight feature doing the same thing? Making Backlight bright when outdoors?
How is it compared to lumos?
Dadaism said:
But isn't the auto-backlight feature doing the same thing? Making Backlight bright when outdoors?
How is it compared to lumos?
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Lumos gives you control over the backlight. You can set up minimum and maximum backlight as well as the backlight intensity curve (vs external light intensity).
The built in auto backlight feature is very weak. It is fine for indoor use but it does not seem to get any darker in the pitch black and does not get much brighter in direct sunlight.
I find myself manually adjusting it everytime...
Agree - the automatic backlight is not working sufficiently. You all need to log this with HTC customer support so they can add it to the next firmware release. Issues really need to be logged sooner rather than later as this phone is going to soon be too old to warrant HTC spending any more time fixing things.
I've been trying to report everything I can before windows 7 comes out and everyone forgets about the Leo.
Hm, well I recognized that the Auto-Backlight is sometimes "slow". But not always. If I walk from a bright room into a dark room the display gets darker. But sometimes it stays quite bright.
Perhaps I give lumos a try. At least to compare.
But when Lumos has so many options to set a brightnes curve, won't you find yourself setting up an adjusted brighnness curve everytime because there is no curve that fits to every situation?
Sometimes there is bright sunlight and shadowy corners, sometimes there is a thunder-storm and barely light.
The light gradient won't be a linear one .
Ok, I played around a little bit.
What are your Max values with HD2? 1178 at mine.
0 is Min value but thats clear. Only thing that is wierd: When I move to a place not directly near a lightbulb the sensor goes very fast down to zero.
It shows zero but it is not dark in the room at all.
Is it the same at yours?
Related
Hey guys,
do you think it's possible to wirte a program which automatically can change the backlight according to the actual daylight condition.
Maybe it is possible to start the program when you wake up your device. then the program turns on the built in (front) camera for about a second or maybe more. The camera "checks" out the light intensity. If its very bright the backlight condition is set to the max.
his is only a idea. I'm thinking of it because for example today it's a very sunny and i can almost read nothing on the display of my touch cruise!!
What do you think about it?
greetings
any idea?
Or does any software like this exist?
Maybe the guy who wrote this program below could be of assistance:
http://forum.xda-developers.com/showthread.php?t=379270
Well, it doesn't have to be so hard...
All we need is a small service that reads from a file the approximate sunrise-sunset time and alters the brightness accordingly. If anyone has the time, he can additionally take advantage of the current time zone and calculate those limits automatically all year long!
Destinator 7 does the exact same think by turning night colors on and off. It is actually better than a build in brightness sensor because it never fails!
Nevermind...did not read the question thououghly
Yeah good ideas,
but a time sceduled scenery has also disadvanteges. When its clowdy outside it causes unnecessary battery consumption.
MVBklight 1.4.2 is not working on my polaris!!
w04g005 said:
Yeah good ideas,
but a time sceduled scenery has also disadvanteges. When its clowdy outside it causes unnecessary battery consumption.
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I come from a rather sunny country (greece) so I really missed this!
Anyway, those PDAs have actually very low brightness screens. In a bright day you cant actually see anything. On the other hand, I have yet to see a rainy/cloudy day that requires a reduction to the maximum brightness level. Overall I think that a time scheduled solution should be the best solution for no sensor-equipped devices.
papajohn said:
I come from a rather sunny country (greece) so I really missed this!
Anyway, those PDAs have actually very low brightness screens. In a bright day you cant actually see anything. On the other hand, I have yet to see a rainy/cloudy day that requires a reduction to the maximum brightness level. Overall I think that a time scheduled solution should be the best solution for no sensor-equipped devices.
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I second that! Even though I'm not from Greece but it's never too bright during the day. Right now my solution is to map the camera button to backlight so I can change it quickly.
Changing the brightness according to the time of day would not be as helpful as changing it according to the ambient light level. If you walk inside a dimly lit building during the day, you don't need the backlight to be as bright as if you were outside. Also, even outside, a cloudy day can be considerably dimmer than a sunny day.
jfeldredge said:
Changing the brightness according to the time of day would not be as helpful as changing it according to the ambient light level. If you walk inside a dimly lit building during the day, you don't need the backlight to be as bright as if you were outside. Also, even outside, a cloudy day can be considerably dimmer than a sunny day.
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I totally agree, but given the fact that there is no ambient light sensor in our devices I dont think that we can do any better. Two scales, one for day and one for night and we are OK for most cases. Yes, as you point out this strategy fails but it is better than:
1. No brightness change at all
2. Manual changes.
papajohn said:
I totally agree, but given the fact that there is no ambient light sensor in our devices I dont think that we can do any better.
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Thats the crux. Some devices especially the newer ones have a camera on the front. I'm no photo-expert but i think every camera is a "ambient light sensor".
The camera also reacts on different light conditions. You can see this by turning on the fps function. But i agree that it would be a lot of work.
Maybe we have to wait till more people and programmers own htcs with such bad displays like the polaris.
Titan Photo Sensor
I found myself thinking about this auto-backlight topic on my way home tonight after a long trip using my 8600 as a GPS. The screen went from being a clearly-visible screen during the day portion of the trip to a flashlight in my eyes at night. While I knew I could adjust the backlighting manually, I didn't want to mess with it while driving. Also, living in Arizona, I can barely make out the screen when in daylight unless the screen is on maximum brightness, but max brightness is horrible on battery life, so I would rather not set it to that by default.
Anyway, the Titan has a photo sensor on the keyboard which is used to determine dim lighting conditions and automatically illuminate the keyboard. I'm not sure if the exact lighting value being detected by the photo sensor can be read, but if it can be, then it should be relatively easy to write an application that would automatically adjust the backlight setting whenever the keyboard is slid open.
The application could both use location-based sunrise/sunset algorithms to set the default backlight value based on time of day, and also allow the setting to be overridden momentarily (perhaps only until the screen is turned off again) by opening the keyboard and sampling the ambient lighting conditions.
I've just bought a Touch 3G and as far as I can tell the Auto setting for the Backlight doesn't seem to do anything. As my last phone (P3300) didn't have this, what should I be expecting to happen? I've tried putting a finger over what I think is the sensor (right hand "LED", beside speaker) and nothing changes.
Thanks, W.
Did you set Auto adjust backlight in system menu?
Imho it is a really subtle effect. You can see it a bit when holding the light sensor (right to the speaker) to a bright light source. The display then gets a little bit brighter.
If you would like to increase the effect or customize the stepping, try g-light ( http://www.ageye.de/index.php?s=glight/about ), it lets you set specific values for each reported value from the sensor, and set the polling interval
Jade auto adjust is poor
I had the diamond prior to purchasing the jade. The diamond auto light adjust was very noticeable compared to the jade. In fact I didn't think the Jade even had a light sensor until one of the other users pointed it out.
After a little research I found this thread. http://forum.xda-developers.com/showthread.php?t=450318
I used it on my Jade and it works great. One of my problems with the diamond was the fact that the light would not automatically dim enough in low light conditions.
Thanks for the link. Now using G-Light which works pretty well. Not perfect as its sometimes a bit erratic but certainly makes better use of the light-sensor than HTC!
Hi guys
Which preference do you use? Is automatic brightness option best for battery saving?
i remember it was an official battery saving tip for iPhone and wondered if it's the case for N1.
eh, just keep it on the lowest brightness... thats the best bet
the problem with auto-brightness is that it fluctuates a bit too much if you're in a room with localised lights and shadows... even in a seemingly bright area to your eyes, the display will go to lowest brightness... i just found it personally annoying, as it would usually fluctuate when i wasn't expecting, and to a lower brightness than i could stand... i've since stopped using it... i set my brightness manually to about 25%... for me that's a good balance between a usuable brightness for all conditions, while still giving good battery life...
I use auto brightness with locale which toggles it on and off based on my location. But even before I did that I really didn't notice to much of a difference in battery levels at the end of the day.
I just wish there were min and max settings for auto brightness. Cause I am pretty sure I have never needed the brightness turned all the way up.
i prefer auto brightness if it works. my 1st N1 had a glitch where the screen brightness used to flicker. on my 2nd N1 the auto brightness does not adjust on full scale........(if you go into 100% dark room, the brightness setting must automatically drop to 0)
I too found that the auto-brightness flickered too much. I downloaded Brightness Level off the marketplace and never looked back...
Auto-brightness fluctuates too much for my liking. So, I just keep it set to middle brightness.
the light sensor is unstable, so manually 25% all the time..
Auto brightness too dark
In my Nexus autobrightness works ok outdoors, but indoors it sets the light too dark. I wish it`d work fine because it's a waste of time adjusting it manually every time you move into different light conditions.
I've read Nexus users report different behaviours of their light sensors, maybe it is a bad quality component of the phone. Is there an app which can modify the sensibility of the light sensor? Would be great to adjust this sensibility and set brightness always to auto with a little more brightness indoors in my case.
manual, 25% - the best balance of battery and light for me.
i use about 60%. I hated the automatic brightness because it was darker than I would like most of the time.
My position is, I bought a phone that has a high resolution, so why not give it the brightness to make the color "pop" like they should.
Even on the dimmest settings, the Vibrant is too bright for me in bed, where the light disturbs my wife.
It seems that, with root, you can lower the brightness further - at least on other phones. Is there any way to do this with the Vibrant?
Thanks!
The "Dimmer" app will toggle it from your current brightness down to 10 but if you find something that will go lower let me know.
It has an automatic brightness control based on input from the sensor. You may need to disable this in the settings too, but I would think it would be automatically dimming itself already in a dark room.
Dallasalien said:
It has an automatic brightness control based on input from the sensor. You may need to disable this in the settings too, but I would think it would be automatically dimming itself already in a dark room.
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Right, but that doesn't get dim enough in some situations and the minimum brightness you can select manually is 30. "Dimmer" will take it all the way to 10 but I would like to see something that would take it to 1 or 2.
I agree. It's too bright in low light situations.
If you find a solution please post it.
Try the Screen Filter App from the market. You can get UNBELIEVABLY low brightness. Which means much better battery.
+1 on screen filter. New version now dims taskbar too.
Is it just me or does everyone's Epic's have terrible brightness sensor hardware/software? My sensor seems to have about 2-3 settings of brightness, and goes from completely dim to super bright in random situations and nothing in between.
Cyanogen just posted on his twitter that in the past he changed the sensor's abilities through coding modifications. Could we do something of the sort for the Epic's sensor?
Agreed. The sensor is horrible. Also, the transition between brightness settings when set to automatic is near instant instead of slowly transitioning, which makes it more obvious that its changing brightness.
I would agree that it is terrible. Mine also send to sometimes turn auto brightness back on if I've turned it off.
It would be great if someone found a way to mod the code for it!
Sent from my SPH-D700 using XDA App
I thought the screen was just too bright at its lowest setting. Fortunately someone came up with a fix for it that can be found in the developer section. As far as the automatic sensor I would suggest turning off "Power Saving Mode" in the Settings>Sound & Display as well. I've read somewhere that this causes the brightness level to vary on its own.
cfiblc said:
I thought the screen was just too bright at its lowest setting. Fortunately someone came up with a fix for it that can be found in the developer section.
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Hehe, that was me. Stay tuned for more. I have coded up and will post, tonight, a new version that will let you modify the brightness curve (from the command line, for now)
As for automatic mode, I have figured out how to modify some aspects of it at the kernel level, such as the ambient light thresholds at which it switches to a different brightness level. By modifying the brightness curve, we can achieve at least some more control. But to make it really good may be significantly harder.
Personally, since manual brightness is always available by swiping horizontally on the status bar, I have little desire to use auto mode anyway.
- linuxuberant
The sensor is actually pretty sensitive. It's just that Samsung chose to have a really small range of brightness steps for automatic brightness.
Firon said:
The sensor is actually pretty sensitive. It's just that Samsung chose to have a really small range of brightness steps for automatic brightness.
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More like they installed an awesome dimmer switch and lights, but the fixture only does three modes; high, medium, and still pretty damn bright.