topic Re: Brightness adjustments while playing video in XPERIA archive

Brightness adjustments while playing video

Mangatt — Mon, 17 Dec 2012 10:42:05 GMT

Hello, I have Xperia T and I encoutered strange problem: while playing video screen brightness is adjusted even with autobrightness turned off.

To reproduce this issue:

turn off autobrightness in display settings, set lowest screen brightness
play video in dark room (mobile screen is only source of light)
video scenes is changing from bright to dark (e.g. interior vs outdoor scene)
screen is with slight delay adjusting brightness - lowering brightness at dark scene, increasing brightness in bright scene

You can play for example stock video skyfall_sam_mendes_videoblog, at 0:20 is typical example what I am talking about - when scene changes to Sam commentary, screen is changing brightness automatically. This is really annoying:-/

Is this problem only in my phone or can anybody else reproduce this issue? Thanks.

Re: Brightness adjustments while playing video

Johan — Thu, 20 Dec 2012 07:50:43 GMT

Which build number are you running on?

Settings > About phone > Build number (at the bottom)

Re: Brightness adjustments while playing video

Mangatt — Thu, 27 Dec 2012 21:27:59 GMT

7.0.A.3.197

Re: Brightness adjustments while playing video

hopeoana — Sun, 06 Jan 2013 14:44:39 GMT

Hello. I have the same problem on my xperia t 7.0.A.3.195. When I watch videos from YouTube like a football game it is more obvious and brightness is changing almost every 2 seconds (its darkening the screen and lightning back). In display option the auto brightness is disabled. I also noticed auto brightness change in other app's when is a change from a dark to white background. I have reset to factory settings and the problem is the same. Thanks.

Re: Brightness adjustments while playing video

Mangatt — Wed, 09 Jan 2013 07:30:31 GMT

Problem is visible even in apps that do not play video. Sometimes when there is some heavier load on processor screen flickers really fast but I am not sure if those 2 issues are related.

Re: Brightness adjustments while playing video

Mangatt — Wed, 09 Jan 2013 07:31:06 GMT

To Sony: 14 days without answer? Really?

Re: Brightness adjustments while playing video

remoh — Wed, 09 Jan 2013 08:52:51 GMT

The problem is also described here with an easy way to reproduce it in apps.

http://forum.xda-developers.com/showthread.php?t=2082007

It is not limited to video playback, it is a system wide effect.

@Sony: Is there any solution or explanation?

Re: Brightness adjustments while playing video

Johan — Wed, 09 Jan 2013 09:37:44 GMT

I'm sorry that it has taken so long but I have done some testing now using a later software and I'm not able to replicate the issue that you guys report so I assume it's fixed. I suggest that you use PC Companion and connect your phone via USB to check for software updates.

*Note that software updates roll out gradually so it might not be available for your device just yet.

Re: Brightness adjustments while playing video

remoh — Wed, 09 Jan 2013 09:43:53 GMT

I can reproduce the effect doing the following:

Just try closing all tabs in Chrome (remain with the dark chrome background icon), and look at the status bar icons: they are pale white, not bright white. Then open a browser tab and watch the address bar colors (sand, white, and black text), go through all of the shades of grey, before finally settling to the right colors. It's not just Chrome... every time your display shows a dark scene going brighter, you can see it happen.

The same happens to me.

Firmware: 7.0.A.3.195

Re: Brightness adjustments while playing video

pineapplepetesk — Wed, 09 Jan 2013 14:01:35 GMT

Same happens to me... build number ending in 223 which I believe is the latest? Come on Sony. You can't expect to compete with the likes of Apple & Samsung if you can't even get the basics of a phone right.

Re: Brightness adjustments while playing video

Johan — Wed, 09 Jan 2013 14:12:16 GMT

Could you please send me your details in a PM, and will forward this for investigation.

Make a relevant topic and include the following.

Name:

Phone nr:

E-mail:

Country:

Operator:

Product(s):

IMEI nr:

Build number:

Re: Brightness adjustments while playing video

Mangatt — Thu, 10 Jan 2013 08:59:45 GMT

I believe that I have latest available update (7.0.A.3.197) and problem still persists. Sended PM.

Re: Brightness adjustments while playing video

remoh — Thu, 24 Jan 2013 13:20:08 GMT

Any news on this? Meanwhile i watched a lot of videos on my Xperia T and the always occuring brightness adjustments are annoying...

Re: Brightness adjustments while playing video

pineapplepetesk — Thu, 24 Jan 2013 21:56:35 GMT

Nothing. I sent my details to Johan above with no response since. This is a joke. O2 have had my phone for two weeks now and still haven't repaired it. I'm embarrased to admit that I am the unfortunate owner of one of these crap handsets. The worst handset I've ever owned and I've had some awful ones.

Re: Brightness adjustments while playing video

pineapplepetesk — Thu, 24 Jan 2013 21:58:28 GMT

Maybe Sony are a bit tied up paying their fine?

Re: Brightness adjustments while playing video

Johan — Thu, 07 Feb 2013 12:28:17 GMT

Please get back to me if you still experience this after the 9.1.A.0.489 (JB) update.

Re: Brightness adjustments while playing video

hopeoana — Sat, 09 Feb 2013 09:37:53 GMT

hello. I have made the update yesterday and the problem is the same very visible on playing video and after click on dialog box with gray background on different programs.

Re: Brightness adjustments while playing video

Johan — Mon, 11 Feb 2013 08:46:30 GMT

Could you please confirm your build number?

Re: Brightness adjustments while playing video

hopeoana — Mon, 11 Feb 2013 10:26:01 GMT

My build number is: 9.1.A.0.489

Re: Brightness adjustments while playing video

hadrice — Sat, 30 Mar 2013 00:41:59 GMT

Hi. I have the same issue. When the screen is displaying grey, black or darker images in general, the contrast is lowered and the screen dims. When it is showing brighter colors, it returns to normal. This is a terrible bug and I hope Sony never meant for it to be a feature, otherwise they'd be out of their minds. Will there ever be a fix for this? It's bad enough that the screen is washed out compared to the iPhone 5.

Version: LT30a

Android: 4.1.2 Jellybean

Build: 9.1.A.0.489