[Q] Record video with screen brightness low/off -- possible? - Sprint HTC EVO 4G LTE

I want to record some lectures but don't want to disturb the people behind me. I also want to record a lecture (powerpoint) in a dark room where any brightness at all is a bad thing.
Anybody know of a way to turn down/off screen brightness during video record? Even if it wasn't distracting to others in class, what an utter waste of battery to have it 100% brightness while recording...

uh huh screen off to record "lectures" lmao the only thing i can think of would b one of the spy cam apps

There's an app that fakes a dead phone by turning the screen off, I guess you could try that

Very interesting. Spy cam / dead phone apps. I'll have a peek.
I remember for the Evo 3D (Sense 3) there was an option in the camera settings where the user could uncheck "force max brightness" -- this would cause the phone to respect the system brightness (which could be set lower). Maybe the option is just hidden in Sense 4.

I would like to have this option too. Hope some one comes up with a mod....

A mod would be useful, but a quick and easy workaround would be to cover the phone with a piece of paper/notebook.
Sent from my EVO using xda app-developers app

Check out Dashboarder, it record while screen off http://shortfuse.org/?p=217

Related

[Q] 15% camera shutdown?

Regarding the shutdown of the camera when the battery reaches 15%.
Does the SGS II have this annoying feature like its predecessor, SGS (1) ?
camera will load but refuse to take pictures below 15%
camera will kill music if loaded
shutter sound, can't be muted
brightness, sharpness, and saturation can't be adjusted anymore
Sent from my GT-I9100 using XDA App
OK you can stop the shutter sound by deleting the file for it in /system/media/audio/ui/
I have an APK that won't shut down camera below 15%, but I need the device to be able to get it working, due to signature issues on files. So it's here and I sent it to someone via email, but I can't release it until mine arrives and I can start work on it
soraxd said:
camera will load but refuse to take pictures below 15%
camera will kill music if loaded
shutter sound, can't be muted
brightness, sharpness, and saturation can't be adjusted anymore
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Sounds quite terrible. Is the adjust option greyed out or gone? Are you totally sure that "auto contrast" is off? On my SGS1, I cannot adjust brightness, sharpness and saturation when auto contrast is active.
Also, when certain sceneries are chosen, adjust is not possible. For most sceneries adjust is greyed out. No scenery is more or less equal to manual mode compared to a compact camera/SLR

Auto brightness

Does anyone have a solution to auto brightness issue?
Even in the darkest room, the lowest light level is "medium" and not low! Its excellent setting when using phone outdoors but in dark room or at night its just too bright. Is my phone broken or is it general windows phone setting?
Sent from my TITAN X310e using Board Express
on my titan, the auto brightness behaviour is erratic and sometimes goes too low.
the camera is one of the issue triggers. after every return from a photo session, the screen goes to a lower brightness.
also, sometimes it happens when unlocking the phone but i don't know what triggers it. then suddenly the screen would return to its normal brightness after a few seconds, although not always.
i suppose it's a driver issue...
antaed said:
on my titan, the auto brightness behaviour is erratic and sometimes goes too low.
the camera is one of the issue triggers. after every return from a photo session, the screen goes to a lower brightness.
also, sometimes it happens when unlocking the phone but i don't know what triggers it. then suddenly the screen would return to its normal brightness after a few seconds, although not always.
i suppose it's a driver issue...
Click to expand...
Click to collapse
so you get the autobrightness to go as low as 'low' set manually? - I tried it but even after camera the lowest brightness I am getting is same as 'medium' when set manually!
drupad2drupad said:
so you get the autobrightness to go as low as 'low' set manually? - I tried it but even after camera the lowest brightness I am getting is same as 'medium' when set manually!
Click to expand...
Click to collapse
no, not that low only lower.
but you are right, even in complete darkness the screen won't go to its lowest setting...
Yes same issue here.
Automatic can go a little bit lower than medium, but not much. Too bright in dim environement.
For general use, i would like to have a preset between low and medium
Since these days many people like ultra bright screens (and ultra loud sound) i am not sure HTC will try to fix this "issue".
I just hope Microsoft can add a brightness slider in the future. (Or bility to set the min auto and max auto levels)
Btw, do you know why camera mode go into max brightness ? This is a little harsh indoor.
crmb said:
Yes same issue here.
Automatic can go a little bit lower than medium, but not much. Too bright in dim environement.
For general use, i would like to have a preset between low and medium
Since these days many people like ultra bright screens (and ultra loud sound) i am not sure HTC will try to fix this "issue".
I just hope Microsoft can add a brightness slider in the future. (Or bility to set the min auto and max auto levels)
Btw, do you know why camera mode go into max brightness ? This is a little harsh indoor.
Click to expand...
Click to collapse
Yes that behaviour is very strange too! I think it's present only in the Titan. Some other windows phone manage the camera brightness a little better. But then I think increased brightness while using camera sort of makes it little pleasant when using it outdoors. But indoors as you mentioned, it's a bit too harsh brightness!
I think it's the light sensor that doesn't work properly. Some places/forums mentioned about issues with various HTC driverseven after those 2 softwares updates we received in Nov-early Dec.
In daylight,the auto brightness works wonderfully for me,I never change it.
But in a fairly dark room,it's too bright and most of the time,I set it to low
I usually set it to medium... and set to low by myself by night.
I have sent a message to HTC (via theirs contact/ticket system) about the "can be improved" auto brightness, and "camera set brightness to max" issues.
Better than nothing.
Since this is a easily reproductible problem, maybe they can take a look if they receive several messages about this.
I wonder if the screen going to max brightness with camera may have something to do with the "HTC Camera modes" addon ? (who knows..)
But i don't see how to remove it. I even can't find it on the marketplace (under HTC section).
I have same issue, I get blinded when I check the time on my phone at night
It was there even before camera modes update was applied by HTC. So unlikely
Sent from my TITAN X310e using Board Express
Obviously, the brightness go to max too when using skype with video.
Hope they will notice and fix it.
Trying to talk to HTC customer service is especially unhelpful here in france.
They have absolutely no knowledge of theirs WP7 products
(whatever the problem encountered)
Now that we have unlocked roms, any way to tweak the auto brightness ?
crmb said:
Now that we have unlocked roms, any way to tweak the auto brightness ?
Click to expand...
Click to collapse
I've tried all 4 ROMs and they have the same behaviour as stock ROM at the moment. But it might be useful looking into the registry threshold values. I know there is some sort of home brew app that lets us set the volume increase in 10s, 20s, 30s or 50s. So a regedit might be somewhere, will dig around myself since you've reminded me again

[Q] Brightness changing while watching youtube?

Hey guys I have a quick question. I was watching a youtube video in my room last night in complete darkness on the lowest brightness setting and I noticed the brightness would change slightly at random. I also noticed it on the skyrim live wallpaper and also while scrolling thru the marketplace. It appeared that when there were more white pixels on the screen then the screen would get slightly brighter. This doesnt happen in netflix or movies that i put on there so I'm hoping this is a software bug happening in google apps. Autobrightness is not on and i tried all the power modes with the same response. Anyone else notice this or also able to replicate this? Thanks!
hey dude!
I have the same issue! I think it is on purpouse. Some kind a way to save power? Here is my thread about this. Try my country and please give me some feedback. Most of users dont notice this. Maybe because their eyes are not so sensitive?
Oh and also if you switch to power saving mode the brightness change will much more significant than on the other two modes
http://forum.xda-developers.com/showthread.php?t=1419583
Really no one of you have this issue?
Sounds like a possible LCD screen flickering problem. It's a problem a lot of LCD display mobile devices have. My HTC Sensation has it.
Here's how to test it: at night, turn off all the lights in your home. Basically, your test area needs to be as dark as possible. Set your Prime to a set brightness, preferably as low as it can go. Open up something that has a uniform color and general brightness throughout, XDA app works perfectly. Go near a wall and point the display at the wall. Start scrolling back and forth through the app.
If your device has screen flickering, you should notice that the light on the wall rapidly fluctuates whenever you scroll.
will try. but i wonder if this is relatd to tegra 3 power saving system? i notice the brightness / contrast automaticly change while watching movies, surfing web and gaming despite off turning off autobrightness
so the question is. is my prime damaged or this is normal? dear xda users please how does your prime behaves?
It could also be a "feature" called dynamic contrast which is an idiotic way of making LCDs look like they have more contrast than they really have. But I hope it isn't, I despise it. Dynamic contrast works like that: during bright scene it brightens the screen, and during dark scene it darkens the screen. It's really annoying (and shouldn't be on ever apart from maybe when watching movies).
ok but the question is. how many of you noticed this issue?
Orion66 said:
ok but the question is. how many of you noticed this issue?
Click to expand...
Click to collapse
I think everyone.
For youtube don't use eco. It's to aggressive and outside of normal videos apps like diceplayer it is useless.
I hope nVidia and Asus will decrease it or give us the option to disable it. Because i like the eco mode for watching flash videos. Much better than Balance and Normal because it's enough and i can save battery.
Magnesus said:
It could also be a "feature" called dynamic contrast which is an idiotic way of making LCDs look like they have more contrast than they really have. But I hope it isn't, I despise it. Dynamic contrast works like that: during bright scene it brightens the screen, and during dark scene it darkens the screen. It's really annoying (and shouldn't be on ever apart from maybe when watching movies).
Click to expand...
Click to collapse
No, it's not for contrast. It's for saving energy by decrease the screen brightness and increase the color level. And it's always doing it. What we see are the problem of the technique.
Well if it is on purpose then it is very annoying. The only thing that helps a bit is to make screen brighter.
I hope it is not a defect of the screen.
Was looking for a thread with this issue, I'm also experiencing this effect.
It's also noticeable with the stock browser, seems some powersaving technique. Hopefully they will optimise it in ics or make it an option.
this DIDIM technology is constantly at work on our device. I saw a Ram dump txt(which I don't know where it came from) in ly Astro explorer. I looked at it and seen that DIDIM feature is constantly working and adjusting.
demandarin said:
this DIDIM technology is constantly at work on our device. I saw a Ram dump txt(which I don't know where it came from) in ly Astro explorer. I looked at it and seen that DIDIM feature is constantly working and adjusting.
Click to expand...
Click to collapse
Any idea how to disable it?
eL_777 said:
Hey guys I have a quick question. I was watching a youtube video in my room last night in complete darkness on the lowest brightness setting and I noticed the brightness would change slightly at random. I also noticed it on the skyrim live wallpaper and also while scrolling thru the marketplace. It appeared that when there were more white pixels on the screen then the screen would get slightly brighter. This doesnt happen in netflix or movies that i put on there so I'm hoping this is a software bug happening in google apps. Autobrightness is not on and i tried all the power modes with the same response. Anyone else notice this or also able to replicate this? Thanks!
Click to expand...
Click to collapse
You guys know that it's not the power setting right? It's in the screen setting under brightness. If you set it to auto, it will adjust depending on your light source, if it's all white, it will be bright in a dark room and will adjust itself. Turn it off, adjust manually.
And you know, its not. It sets brightness high of overall picture is bright and dark if picture is dark... Much like dynamic contrast. It has nothing to do with auto brighteness. I tried that first.
But can I believe it was fixed in some update, since no one continues this thread after ICS? I cannot update becouse of unknow SN bug. Waiting for Asus to say either send it back or release fix. Thanks.
Happening to me right now with ICS, in performance mode, docked with charger in.
I've been noticing subtle changes in brightness no matter what performance mode I'm in, and I always have auto-brightness off. I normally keep the device in Balanced mode. It's most noticeable if I'm watching videos before bed, as I have the device brightness near minimum, and any change in brightness is pretty clear. At first I thought it was something to do with BS Player, but I've been using Dice as well and see the same effect. It may be a little better on ICS than it was with Honeycomb, but it's hard to tell.
If this is DIDIM, then I guess there's not much I can do about it besides hoping nVidia/Asus tunes the effect to be a little more subtle. :-/
I notice it, however it only affects me with low brightness/auto brightness setting. It does NOT kick in for me over 15/20% brightness combined w/ balanced/normal mode.
That is still on HC, wont get ICS update until two weeks.
Can also be noticed when canging homescreen tabs, slide it over slowly with your finger on the display (keeping it from flipping), once moved more than 30%, the display dims.
I am experiencing this brightness fluctuation, in all power modes, with auto brightness turned on or off.
Very annoying.
newfie99 said:
I am experiencing this brightness fluctuation, in all power modes, with auto brightness turned on or off.
Very annoying.
Click to expand...
Click to collapse
Thing that annoys me the most is that it does it with a freakin live wallpaper lol. I guess the snow falling in the skyrim live wallpaper triggers it or something but it is annoying and still exists in ICS. Oh well, maybe they will tone it down soon... here's to hoping.
Ciddy said:
I notice it, however it only affects me with low brightness/auto brightness setting. It does NOT kick in for me over 15/20% brightness combined w/ balanced/normal mode.
That is still on HC, wont get ICS update until two weeks.
Can also be noticed when canging homescreen tabs, slide it over slowly with your finger on the display (keeping it from flipping), once moved more than 30%, the display dims.
Click to expand...
Click to collapse
I'm running the newest ICS update (9.4.2.11) and it's still doing it. The dimming at 30% home screen scrolling still happens too. i'm pretty sure it's DIDIM

[Q] Reduce screen brightness?

Hey everyone-
I'm looking for a way to reduce my backlight brightness further than the normal levels. I use my Evo as a night clock, but the minimum brightness still beacons a bit in a dark room. I believe this is possible, but I'm not sure what I'm missing. I tried out an app called RootDim from the market. It lets you move the slider from 0 - 255. The screen gets darker as you slide it backwards, but it stops dimming when you hit 30. Anything below that does nothing. I thought it might be a kernel issue, so I flashed the nolights kernel to test, but that didn't change anything.
I am also aware of screen filter, but that doesn't actually dim the backlight. Anyone out there no of a way to drop the minimum backlight level below 30?
EDIT: I should also mention that I'm using Android Revolution as my ROM. Thanks.
Been looking for the same thing as well. I was hoping RootDim would help , but I got the same results.
Have you tried DOCK mode ? It's a built in APP on HTC EVO 3D.
Do a Search for DOCK and try it. It runs in Lanscape mode and it
switches to a night mode after a few minutes or you can switch
manually via the lower right lower corner.
Rich
Try screen filter
Sent from my PG86100 using XDA App
backlund said:
I am also aware of screen filter, but that doesn't actually dim the backlight.
Click to expand...
Click to collapse
I tried that already. And I'm using Dock Mode. The problem is that even at minimum brightness, black color still lights up the room a bit. Considering that it stops dimming at < 30, I'm assuming there must be some way to get levels between 0 and 30 as well. I guess it stops at 30 as a safety net, to keep you from dimming it so much that you can't see the screen.
Bumping this. I feel like cyanogen let me go darker but I'm back on sense and am looking for a solution.
I use the Android Assistant app, free at Google Play. It will let me take the brightness down to 11. Not sure if this would be low enough for you. The control is in Tools, Save Battery.
Any update on this? Whenever I'm in a dark room my lowest brightness still seems too bright. Is there any way to get it darker?

[solved] screen brightness lowers when watching a video

does the same thing happen to anyone else? when i go play a video i recorded the screen dims and when i exit the video the screen gets brighter. samething happens when i open the internet browser and youtube. i was comparing images and videos with my brothers phone and his looked brighter than mine and my screen brightness was all the way up. i am running redruM lean stock rom version 2 or 3( not sure what version) for the tmobile. and i also have some mods like build.prop tweaks, sony bravia engine, forced hardware acceleration, moded media-profiles.xml and some other ones i cant remember. im on adamkernel3 when i am browsing the videos the seem bright but when i play them it seems dark. hope someone has a solution to this. thanks:good:
ok so i found a solution: solution here
so basically they each have their own brightness controls. just press the menu soft key and find brightness and disable automatic brightness and set it yourself.
Adjust Video Brightness on Setting (Play video, then hit option).
Also for the browser, hit option while on internet. Unless you got 3rd party one.
I was 8 min late
pakxelaos said:
Adjust Video Brightness on Setting (Play video, then hit option).
Also for the browser, hit option while on internet. Unless you got 3rd party one.
I was 8 min late
Click to expand...
Click to collapse
lol thanks.

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