Database Users

Backlight resetting to minimum when device switched on

For some reason my device has suddenly started switching to the minimum backlight setting whenever it's switched on. If I go to the backlight settings and then adjust the slider it will stay at the selected brightness until it switches off. When it switches back on again it's at minimum brightness and I can hardly see the screen!
This started happening after I installed and then removed PocketZenPhone.
I don't really want to hard-reset the device unless I absolutely have to - does anyone know what registry key sets the default switch-on brightness?
Thanks,

I dont have the solution but I have had the same problem intermittently. Can be really aggravating in the dark because it can be hard to get to the proper screen to increase the backlight. Hasnt happened in a while. Have not been able to figure out what triggers it. Have not installed PocketZenPHone. Curious if anyone has an explanation.

yah, i've noticed this to, sometimes i'll hit the power button to take it off standby and the backlight would be off. first couple of times it scared the hell out of me cuz i thought the screen had broke or burnt out.
also i noticed the version of spb pocket plus i'm using (3.04 build 4195) doesnt adjust the backlight brightness.

Now that you mention it. the SPB Pocket plus backlight does not work for me either. Strange...

Well I think I've managed to "fix" this by setting the following;
Backlight Settings:
On battery power, turn off backlight if device is not used for [5 min]
Turn on backlight when a button is pressed or the screen is tapped
Power Settings
On battery power: Turn off device if not used for [3 minutes]
I think the key thing here is to have the device auto-switch-off BEFORE the backlight timer kicks in. Since setting the above three settings I have not had the same problem again.

Ill give it a try as well.

Hmm...maybe someone can help me. One day, my backlight timer settings when the PDA's not plugged in reset to 10 seconds (in the registry it has it as 7 seconds). I'll go in and change it to 2 minutes (the original setting I had it at), but the minute I turn it off, it resets back again to the 10 seconds setting. I even tried going into the registry and changing it, and it resets it back to 10 seconds. I suspect it may have something to do with an entry in the "scheduled tasks" but it looks like a complete mess. Is there some kind of scheduled tasks cleanup utility?
Thanks,
Q

hello i have the same problem using phothet with WM6
Thanks
Nicolas

I had the same problem often about 15 months ago - it happened often each day.
I posted herw but had no joy with a solution - but then found one on Modoco (i was looking about March/April 2006).
Even with that - it has still done if perhaps five or six times since - and basically makes the phone unusuable if it happens somewhere or time with poor light.

My KJam backlight keeps changing by itself to dark
Suddenly my KJam backlight always turns to low without me doing so, then I have to change it to high, barely can see what I’m doing as it is almost black. This is kept happening especially after I installed Pocketweather. I reinstalled the Rom, it worked fine then suddenly it is back again when I switch the screen off, or automatically it is switched off, the backlight slider I find it at the lowest end.
Why thus is happening, it’s driving me crazy, please help me

At times Backlight doesnt light up again - why?

Perhaps someone has an explanation why my backlight doesnt light up again when a button is pressed?
From time to time, the backlight goes dark and even though I am pressing buttons, screen, power button, etc, the backlight doesnt come back on. I have to search for the backlight adjuster (in the dark) in order to switch the light back on.
I have wisbar advanced and SpbPocketPlus installed - might that effect this somehow??
Thanks for any advice!

i have exactly the same problem and don´t know a solution. ;-(
Wisbar Advance 2.6.0.1 is installed, SpbPocketPlus not.
I think it comes more often if i use the camera, but it is not reproduceable...

I've never had this problem before, I dont have wisbar installed.

You may be doing a press and hold function on your device. Quick press of the power turns it off, a long press turns off the backlight. the only way to turn it back on is to long press the power button.
also you have settings that turns the back light screen off, which may be affecting this.

This problem used to occur on the O2 XDA2i ALL THE TIME!
Just my 2 cents. Sorry, not very helpful, but defo a problem we've seen before. You hvae to go into settings to start the backlight back up.

Squuiid said:
This problem used to occur on the O2 XDA2i ALL THE TIME!
Just my 2 cents. Sorry, not very helpful, but defo a problem we've seen before. You hvae to go into settings to start the backlight back up.
Click to expand...
Click to collapse
It hasnt happened lately (actually ever I posted this thread strangely enough) but its quite embarrassing when you have to find your way through a dark screen.
I put a large symbol of the brightness adjuster in one corner (using SpbPocketPlus), so I only have to find that symbol rather then start --> settings --> etc..... its not a cure but it makes it easier switching it back on.
If anyone has a remedy for this problem, please share...

Not sure why this happens, but I fixed it using...
http://www.ppc-welt.info/community/showpost.php?p=728080&postcount=27
This app - run on your prophet, and all is back to normal. Keep a copy on your SD card...
--Tosh

didn't help
I tried and still use the neo backlight fix. But this fix is only for forcing via startup a longer measured time for the light to stay on.
I too have suffered with the problem of the backlight not coming on every now and again after starting up the prophet. I've had this problem on numerous roms too which is interesting. What more interesting is that even in the days of my owning a Blue Angel (Orange M2000, MDA) I STILL remember having this intermittent problem with the light not always coming on. Only way I fixed it was to simply soft reset the device. Whenever I did that and when I do it now, it stops it happening for week or so at least.
I still use the neo back light fix too as my phone has the quick light turn off problem without it. Neo certainly created a good fix no mistaking.
All the best
Nicholas

i had the same problem...just put the same value to the standby and backlight ...( both 3 mins on mine)...and never happened again....i think it helps...

I have a strange backlight & power-off problem on my Qtek S200:
When the backlight is switched on and I press the Power button shortly to switch it to sleep mode, the screen gets blank but the backlight does not go off.
So now I wait first when the backlight timer goes off before switching the device to sleep mode manually.
Another problem:
When the power settings is set to switch the device off automatically, it reboots when the timer goes off. So my solution is to disable the auto power-off feature.
How to fix this to the original behaviour ?
I tried the neo_backlight_fix and set the backlight timeout to the same value as the standby timeout, but with no avail.
My Qtek S200 has still the original old ROM (G4 model) and Windows Mobile 5.0:
ROM version info:
IPL: 2.10.001
SPL: 2.10.001
GSM: 02.07.20
OS: 2.10.7.25
Please help me to solve the problem.
Maybe I messed up a lot and the only solution is to install a newer ROM which is available since some time at qtek.nl.
Thanks in advance.

Backlight always off on resume

Hi,
weird thing here: Always when I awake the device after suspend, the backlight is off. I have PZP installed, but it's configured to do nothing to backlight or power, settings in backlight/power are to never switch off backlight, but suspend after 2 minutes.
Any ideas where else I could check?

after mr.clean update, my backlight auto set itself to turn off after 10sec no matter what i do
I tried to set the back light to never turn off, but it still will not work
all i have running on background is spb pocket plus
CAN ANY HELP?????

hm, also mr. clean here.. coincidence?

My out of the box MDA Vario did this too. I finally figured out that it only did it if I changed the brightness level from the default to max. If I left it at the default, it worked fine on resume...

before the mr. clean rom I had a standard vodafone one, and didn't have the problem. What is default level (steps from topmost) for testing?

TauTau said:
hm, also mr. clean here.. coincidence?
Click to expand...
Click to collapse
ok, i THINK i solved it now
it is caused by a software called vito audio note
http://www.pocketgear.com/software_detail.asp?id=21235&associateid=17
which will uses its power saving mode to turn off Wizard

I had the same problem. Rebooting the device didn't fix it. But when I actually SOFT-resetted the device, it came all back to normal.

Backlight off on resume, not hardware
Hello everyone,
I've got a very frustrating problem. Here's the summary:
My backlight doesn't come on when I resume from standby. However, when I soft-boot the backlight behaves as normal. After boot, if I continue pressing keys to prevent the backlight from turning off, then it operates as normal. However, if the backlight times-out, or if I put it in standby, the backlight refuses to come back on.
Any suggestions?

I bit the bullet
Well, i finally decided I couldn't live with the dark screen anymore and Hard Reset my 8125. It fixed the problem, but now I have to reload everything.
Oh well, now will be a good time to upgrade my ROM I guess...

X7500 Backlight Slider not functional

Hello xda world. Like the forums... I'm new to PPC, but I've previously developed Palm apps.
I've had an x7500 for a week or so. Lots of messing around trying to get a configuration I like, and somehow I've managed to break it (maybe).
The backlight works fine - when there is no external power.
However, when external power is applied, the backlight goes to its lowest mode and will not honour the slider settings in the Backlight app.
This is really, really annoying. Any suggestions?
Is it a PPC or an HTC thing?
Thanks & regards

Devany said:
Hello xda world. Like the forums... I'm new to PPC, but I've previously developed Palm apps.
I've had an x7500 for a week or so. Lots of messing around trying to get a configuration I like, and somehow I've managed to break it (maybe).
The backlight works fine - when there is no external power.
However, when external power is applied, the backlight goes to its lowest mode and will not honour the slider settings in the Backlight app.
This is really, really annoying. Any suggestions?
Is it a PPC or an HTC thing?
Thanks & regards
Click to expand...
Click to collapse
i remember i had similar problem before, do you have Phone Alarm install?

Thanks for your help, but... nope no phone alarm.
(In the phone app right? I don't see any options for a phone alarm.)

hi Devany
not sure if you managed to find a resolution but i too had a similar problem.
i think mine was caused by phonemanager (which i have since uninstalled)
i found that when on battery power the slider in backlight settings did absolutely nothing. the only time the backlight would become brighter was when the alarm was going off.
searching throught the registry i found the solution.
navigate to HKEY_CURRENT_USER\controlpanel\backlight
change the onoffbat key to 1 (mine was set to 0)
once done press the power key down for ages to reboot.
my slider now works fine.
hope this helps
Daryl Mushtaq

backlight stays off after unlocking

Whe I switch on my phone by pressing the top-right button, the phone is locked and the backlight is on. After 6 sec the backlight turns off.
When I unlock my phone, the backlight stays off
I would expect that the backlight gets on when you unlock... but it isn't.
Now I have to press the top-right button twice (to turn off and back on) and unlock within 6 seconds to get the backlight on.
This is very annoying.
Is there a way to get the backlight on after unlocking?

I have no solution - but can confirm that this happens to my phone too.

Hi,
Same problem here Found it very annoying so I just disabled the Backlight shut-off function alltogether
Regards,
Rolf (The Netherlands)

This seems to only happen if you use some kind of tweak that adjusts the auto-lock function. I used to use HD Tweak and changed the value for some auto-lock thingy (can't remember what it was).
After I hard-reseted it seems to have gone back to normal. So I would avoid any setting that changes the auto-lock thingy.
Note that uninstalling HD Tweak did not restore the correct functionality. Probably because I did not undo the changes prior to uninstalling.
So maybe you can try to change back the value first and see if it helps.
Good luck, I found that bug very annoying and decided I could live with no auto-lock.

Hi Saros,
Thanks for the input
Saros said:
Note that uninstalling HD Tweak did not restore the correct functionality. Probably because I did not undo the changes prior to uninstalling.
So maybe you can try to change back the value first and see if it helps.
Click to expand...
Click to collapse
I use HD Tweak aswell and had a feeling the Backlight Issue only occurred after enabling the Auto-Lock feature, thanks for confirming my suspicions. I DID however turn the feature back OFF in HD Tweak. Unfortunately that did NOT solve the problem
Don't feel much for a Hard-Reset at this point since it took me quite a while to get my new phone set-up correctly. Hopefully a fix will be available, I'll go browse through the HD Tweak topic to see if anything gives yet...
Regards,
Rolf (The Netherlands)

Rolf,
Disabeling the Backlight shut-off function is a good tip. Thanks.
But I still hope there will be a fix for this problem soon... so we don't use to much battery capacity.
Bart (Antwerp, Belgium)

I had this problem when i changed some registry keys. The following must be:
HKEY_CurrentUser\ControlPanel\Backlight\[AutoDeviceLockEnable set to 0]
HKEY_CurrentUser\ControlPanel\Backlight\LockLevel\[LockLevel set to 0]

marpam,
When I set the first regkey back to 0, the autolock doesn't work anymore.
When I manually lock the device by press and hold the down-right button (stop call), the problem still exist when you unlock.
I want to keep the autolock function, but with backlight back on when I unlock the device.
Bart

I had this same problem. I did a hard reset and again set auto lock in tweak then shut off backlight off and the problem is gone and now auto lock is fine.

You can also use Lumos - solved the issue for me
http://forum.xda-developers.com/showthread.php?t=450318