backlight won't turn off - XPERIA X1 Q&A, Help & Troubleshooting

I notice that my X1 backlight won't turn off.
Even if I set backlight to off after some time, the light just become less bright but not totally off as compared with my HTC Hermes/Tytn.
Is it a "feature" for X1? Will it hurt the LCD if the backlight not turn off, especially that I usually leave it on while charging with USB of my PC?

The backlight dims to minimum instead of turning off completely. If you are connected to a PC it won't turn the screen off, despite the setting in power management. If it is charged with a charger (not PC connected) it will turn the screen off if it is set up to do so.

Tap the power button to turn the screen off and disable the touch feature... key's remain unlocked and apps keep running

I am having a similar issue, if I push the power button to turn off the screen, it turns off, but then 5-6 seconds later it comes back on, this is after a hard reset and no other programs. Any idea what could be causing this?

Hey I just started having the exact same problem today. Turn off backlight with the power button, moments later it comes back on. This 'ghost' activation is inconsistent. Sometimes it doesn't come on for a while, but it will eventually come on.
About 2 weeks ago I spilled some water on it. I dried it out with a hair dryer and all seemed fine but now I'm wondering. It's almost like the power button is shorting out, turning the darn thing on. Any clues or solutions out there?http://forum.xda-developers.com/images/smilies/confused.gif

Related

Why Dim Screen When Docked?

Both with the default ATT ROM as well as with the TILT AKU.0.7.0 ROM my phone will not turn the screen off when docked.
I have the backlight and power settings adjusted to allow the phone to turn off the screen after 1 minute and turn off after 5 minutes.
When docked, instead of going dark and powering off per my settings, the screen drops to about a 20-30% brightness level and the phone never turns off.
I supsect some app may be keeping the phone awake, but disabling my plugins did not make a difference.
Anyone else experience this behavior?
I have an unlocked TyTN II, with stock HTC ROM, and thats how it's always been out of the box.
Maybe I'm just used to how my old Hermes behaved.
I noticed this too. Now if someone knew how this could be deactivated so the screen was completely off, that would be nice.
-James
The Kaiser's screen, unlike Hermes, is not transreflective and if the backlight is off, the display is completely blank. HTC elected to have the display stay ON at a minimal brightness when the timer runs out.
At first I wasn't happy but at night, navigating, I like the fact that it auto-dims while attached to a charge cord.

Tilt NOT going to sleep

Has anyone noticed on either the Tilt or Kaiser that sometimes the device will not enter sleep mode?
It seems like when my Tilt running the stock AT&T Rom is on AC power, it will not enter sleep mode even though I have it set to sleep after 5 minutes on AC power. This is not while connected via USB to a PC running ActiveSync as that WILL keep the device alive, I'm talking about connected to the power brick.
After 5 minutes the screen will dim but not sleep. Running on battery power the timeout will usually happen. If it doesn't sleep the display just dims like it did above.
Settings for power are set to shut off after 5 minutes.
Any ideas?
Todd
I've noticed that mine does the same thing, just doesn't turn off when plugged into AC. I'm not aware of any "fix" for it persay, I just dismissed it as a minor bug of the OS. I would be curious if if anyone does have a solution to this, but it's not that big a deal IMO.
I noticed it also, but don't care. However, if it happens while on battery, try changing the time to something else and then back. My battery was draining QUICK and finally I realized that it wasn't turning off. Doing the above fixed it.
Thanks for the replies. Not that I feel better about it but at least others have the same issue. It's not a big deal if plugged, just wondering why.
Todd
I just got into the habit of manually hitting the power button and putting it to sleep before holstering it and right after pluging it in.
Same here, it would go to sleep on DC power but would stay awake on AC power.
Dont worry.
I'm sure it goes into sleep when you press the power button.
Ahhh, is that what that button is for?!

Backlight won't turn off?

Perhaps is supposed to be this way, but I have noticed that my backlight won't turn off when plugged in - even though set to turn off after 2 minutes when plugged in. Instead of turning off, it seems to revert to a dim mode - but the light still remains on. I have to manually turn it off. Any thoughts?
That's what it does. Unless the phone is off, the display can't be turned completely off. This is because the screen is not transreflective.
I understand that, but the trouble is that the backlight remains on. Surely that's not supposed to happen, right?
no, thats not normal behaviour.
do you have anything running in the background? its sometimes a good idea to go into the settings and untick the boxes, soft reset the device, then put the settings back the way you want them. This has worked for me in the past.
Are you talking when the device is plugged into the USB port w/ ActiveSync running? If so that is how it works - device will stay on.
If you are talking about plugged into AC then it should power off after x amount of minutes.
To be clear, if the phone is ON, the backlight will always be ON. This is different from the previous Hermes/8525 that had a transreflective screen which could be seen in bright light with the backlight off.
The Kaiser/Tilt's don't have transreflective displays so they changed the backlight control to dim instead of OFF. When the display brightness slider is put to minimum or the display timer expires the display just dims.
Pressing the power button and going to standby is the only way to turn off the display that I'm aware of.
Now, Auto Power off after a timer expire is different. If you set the power settings to turn off after 2 minutes while on A/C, the Kaiser will turn off, IF it's not connected to Active Sync, and IF there isn't some other application keeping the phone alive (Apps like iNav keep the phone alive).

My diamond doesn't switch screen off after idle

Hello,
I've got weird problem. My diamond doesn't turn screen off after idle. In 'Settings->Power->Advanced' I have 10sec -> turn backlight off and 40sec -> turn device off. Turning backlight off works just fine, but it never turn whole screen off I have to push power off button to achieve that. If I forget to push power off button my battery run out very fast.
Please help

Changed battery, now LCD won't stay on

I swapped the battery on my F8131 and now when my phone boots up, I get to my main screen and the screen turns off. The phone still works, clearly, as my alarm was going off this morning, but the screen won't turn back on unless I re-seat the battery. Then the process repeats itself. Touch works, as I can swipe before the screen turns off.
I've re-seated all the connections, dried it out, put the old battery back in, pulled each component one by one to see if it was shorting, power drained the phone. Nothing fixed the issue. I can't get to the recovery menu as the volume buttons don't work properly.
Any thoughts?
Did it get wet?
If so take out the battery asap!!!

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