Computer Brightness

Hello, I've had my laptop for over a year now and I'm going insane to be honest. When my laptop is plugged in my screen gets brighter. When my laptop isn't it gets dimmer. I've restored my computer to factory settings around two times and it still hasn't worked. On my settings brightness is turned up all the way aswell. My computer is a HP Pavillion dv7-7121nr Entertainment PC. I really need help before I go insane!

Hi CollisionJr,
Thank you for visiting the HP Support Forums and Welcome. I have read your thread on your HP Pavilion dv7-7121nr and brightness controls. When the computer is connect to the ac adapter it will be brighter when it is on battery it goes to power save mode to save your battery time. Here is a document on managing power options.
Hope this helps.
Thanks.
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Brightness and battery?

:moving the slider even a bit changes the brightness from too high to too low.then again if i change it,it becomes too low,like there's no middle setting,either full bright,or nothing.i have tried to change it from the amd vision control engine,same problem.
.the battery backup is too low.100 percent = 1.5 hour.company says about 3 hour backup.

Hi gokuvegita,
Welcome to Lenovo Community Forums!
I’m sorry to hear that the computer brightness and the battery backup feature is not working as expected, if the exact model is provided in the post it will be very helpful to provide the exact solution for the issue. Below is the link to enter the exact model of the computer and download the Display & Lenovo Energy Management to check if the issue is with Driver, Software or hardware.
Driver & Software Download
Do post us back for further queries.
Best Regards
Shiva Kumar
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Thinkpad T61 LCD dim, go with led upgrade???

Hey I just got a T61 and the LCD screen is very dim/dull when the laptop is plugged in or on highest setting, its nearly as dim as my Lenovo N500 on lowest brightness setting!!!
I know I will need to replace most likely the inverter and possibly the bulb inside, but I am wondering if I should replace the screen as well, and if so is there a 14.1" widescreen for this laptop with a better more crisp screen "like the n500"???
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whats everone think?

Your inverter is most likely fine, just a weak bulb, but if you've eveer tried to replace one of these it's not a simple matter, your best option is to replace the screen. As for an LED upgrade, I think that's snake oil, as these systems don't have the necessary electronics to power an LED backlight. I have seen some (very expensive) circuitry that claims to control an LED backlight, but good luck getting it to work with things like your computes brightness settings, if it works at all it will probably be always on as the inverter isn't designed to control led lights.
Perhaps someone has designed a kit that resolves some/all of these problems... but then you're still back at the point of having to install it in the screen. If you have a samsung screen they are a nightmare to open, you'll probably need to cut the screen open and tape/glue it back together. Other brands aren't as bad, but to do this right you'll need a labritory grade "clean room", because as soon as you open the LCD every partical of dust in the air will stick to the screen and you'll never get it out without replacing it with smear marks. If you do manage to "pull this off", then please take photos to share with the community.
If I were you I'd just buy a screen, there are some good used ones available, and I may have one with a good backlight, but with a vertical line on the screen that I could send you if you cover the postage, perhaps you can use the parts to combine one good one.
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I can't change the brightness on my macbook pro. i tried the buttons on the keyboard, went to settings and tried to do it from there, didn't work. i have restarted my computer as well and that didn't make a difference. please help

i can't change the brightness on my macbook pro. i tried the buttons on the keyboard, went to settings and tried to do it from there, didn't work. i have restarted my computer as well and that didn't make a difference. please help.

Reset the PRAM and SMC.
Barry

Possessed iMac 27: Brightness control turns itself down while I'm using computer, fights me when I try to turn it back up

This computer is possessed! It literally seems like a ghost is pressing the brightness key on the keyboard while I'm working. It happens sporadically and seemingly without reason. The brightness icon pops up on the screen as the screen quickly dims. When I try to turn the brightness back up, it is like playing tug of war with the ghost. I turn it up, it instantly goes back down. After 20 seconds or so of this foolishness, it stops and I can resume working. Until it happens again. AARRGGHH!!!
Thoughts?

Try doing both a SMC and PRAM reset, do each at least 2x. Then retest and repost, if you don't know how to do these you will find info in:
https://discussions.apple.com/docs/DOC-3603

My phone is unresponsive, like a black screen, except bright colors streak the screen. I tried plugging it into the computer but it says its an unknown device. What happened?

I recently plugged in my phone to the computer to download some music. It was resyncing and copying an app, while simultaneously I was on snapchat when suddenly a big wave of pink covered the bottom of the screen, then streaks of bright colors covered the whole screen. I cant turn it off because I use assistive touch, which is now covered by the streaks. Right now I'm waiting for my phone to turn off by itself, hopefully, because it was low battery when I plugged it in. Not only that, but when I plug it into the computer it says the device and port are 'unknown'. What happened? Is my phone broken? Please help me.

See if you can connect in recovery mode and restore your device, explained in this article:
iOS: Unable to update or restore
If you can't, you should get it serviced.
Apple - Support - Service Answer Center

Set the brightness on my computer before I edit in FCP 6

Do I keep my computers brightness at a medium and the audio at a medium. I have been editing my clips and adjusting the clips brightness, and audio as well. Sometimes I open my project to find that it is to BRIGHT. But that is because of my computer. I dim it down back to where I would normally set it before I edit. But when I export it, how is it going to turn out.
What/Where should I set my brightness on my Mac computer, so when exporting my completly edited project it will look like what I have edited?

You don't.
Your computer monitor is worthless for judging anything other than framing, timing of action and motion.
To evaluate color, contrast, brightness, etc you need to be viewing the material on an a standards based display system. This means you hook up an external TV or HDTV that is calibrated (eg Flanders Scientific monitor) and fed by a qualified export card (eg Kona or Decklink).
The least expensive system to get you started is using a Matrox MXO2 Mini feeding a 1920x1200 computer monitor. The matrox comes with a software calibration utility that will get your monitor into the ball park.
x

My iPod 5's screen displays strange letters (like the one's you'd find in a malfunctioning computer) and it has a bright rectangle in the center. I haven't dripped or damaged it.

My iPod 5's screen displays strange letters (like the one's you'd find in a malfunctioning computer) and it has a bright rectangle in the center. I haven't dripped or damaged it.

Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
If still problem, make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
Apple Retail Store - Genius Bar

IPod frozen (bright screen) and not recognised by computer

I have a 5th Gen IPod 30GB that is frozen with a bright screen? no text? I have plugged it into my IMac and carried out all the normal reset procedures, however, the computer does not recognise the IPod as been fitted? Any help would be gratefully received!

I tried uploading some songs from my friends computer but when I plugged it into his usb port, it said the device wasn't recognizable. All I wanted to do was upload some of his songs from iTunes but that never happened...oh well.

HT4293 I have an Apple monitor model A1316 is using for Windows computer, but I could not adjust the brightness. The monitor is not bright enough when I turned off the lights in my room.

I have an Apple monitor model A1316 is using for Windows computer, but I could not adjust the brightness. The monitor is not bright enough when I turned off the lights in my room.

Have you plugged the USB cable into the computer also as the brightness is controlled over USB. If this does not work, you would need the Apple Display Driver for the version of Windows that you are using. The display driver is part of BootCamp software that you may be able to find online

Can a computer suddenly became super bright and slow be fixed?

Never dropped, just suddenly when browsering the internet.

Try to start *Windows* in safe mode with networking enabled.
- Win8 http://windows.microsoft.com/en-US/windows-8/windows-startup-settings-including-safe-mode
- Win7 http://windows.microsoft.com/en-US/windows7/Start-your-computer-in-safe-mode
- XP http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/boot_failsafe.mspx
Still in Windows safe mode, start Thunderbird in safe mode.
- https://support.mozilla.org/en-US/kb/safe-mode
Does the problem go away?

I have a 13" early 2011 MBP that when plugged in to the AC adapter, the usually bright orange light is now a dull, dim orange light. The computer is running off of the adaptor, but is not charging. The battery health is at 93 percent.

The title really says it all. I have tried reseting the SMC mutliple times, but to no avail. The computer is clearly not under warranty, so hopefully there is a software/firmware solution as opposed to a hardware solution. Thank you!

Try the suggestions in this article.
http://support.apple.com/kb/TS1713
best.

How to make mac address gmail contacts overwrite the ones on my HTC Android phone - I don't want to sync - that makes the phone scramble and overwrite my computer. I want to remove or correctly overwrite the phone information as I have done with iPad.

Please help - I am beginning to hate google, my android and gmail. I have just wasted about 5 hours in a futile attempt to try and get my current Mac contacts list on my computer updated to my phone. I'm not that computer literate but I have looked up about google phone accounts, vCards, backing up contact lists, what SD on phones are, and God know what else. I have searched the internet and tried all sorts of things and I still have a mac with a now correct contact list (after the iPad contacts scrambled it and I spent ages manually correcting them all) and a phone with an outdated contact list. If you try and sync them the phone wants to overwrite the computer one just like the iPad did (would it be so **** hard to give you a choice on the phone as to which overwrites which!). After all the advice on the internet failed, I got the bright idea to completely delete all the ones on the phone and if it was empty of contacts the computer one could be exported to it. Not as simple as it sounds. First I backed up (I think) my computer contacts list. Numerous futile attempts to go through the phone options to globally delete all contacts did not work - they gave a warning message and you got to choose whether to continue or not, I did, and it looked like it might be working as it changed to zero data on the phone, but then they all popped back up again from God knows where from, but without their little added bits like pictures of the people. So, I tried un- syncing the darn phone from google and then deleting them globally. That didn't work either. I tried deleting them all again and again and google would crash and not let me do it. It is absolutely ridiculous that this is so damned difficult to do (especially if you are not computer savvy) and that you cannot choose which device overwrites which when syncing. I gave up and ticked sync with Google again (not that it appears to do anything to the phone contact list at all). So after 5 hours I am back to where I started from, with a phone showing all the same incorrect contacts (but the pictures are back), which wants to overwrite the computer if I try any sort of sync, and no way to fix them except go into each one manually and try and do it - and how long would that take (and I've already wasted hours and hours fixing scrambled contact lists!). I think I will do a print out of the computer contact list and just carry it around with me like an address book - so much bloody simpler. So now I have a headache, am fighting an overwhelming urge to hurl the phone at the wall, hoping for a heat wave to evaporate icloud things and am wishing I had bought an iPhone instead of the stupid HTC Android. Can any one offer me any suggestions on how to get rid of the contacts on my phone and replace them with the ones in my mac address list - hopefully after that they can sync to their hearts content and not stuff everything up again (which was why I unsynced google a while back - because the phone's list kept making stuff ups and scrambling and duplicating my computer contacts list). Am I the only one on the planet having this problem or is there someone else out there who has had it and solved it.

Without "pretending" to be yourself on the other phone (change settings) there's nothing else you can do.
iOS devices are meant to be single user and can't view iCloud.com the same way a Mac or PC can do.
You need to find a desktop or laptop machine (Mac or PC) to log in at iCloud.

How can I see previously stored tunes no longer on my computer? Where are iCloud audio files?

Maybe my question has an answer too "obvious" for me to see it. But lately I've become aware of tunes that, for one reason or another, are not showing in my iMac's iTunes program. I went to System Preferences and clicked on "iCloud." Immediately, I saw how to check iCloud for the following files and documents: Mail, Contacts, Calendar, Notes, Safari (not sure what this category could be for--seeing what was on the web at some prior point in history?), Photo Stream, Documents & Data, Back to My Mac, Find My Mac.
In other words, going to iCloud appears to reveal categories for all of your iCloud content EXCEPT your music files. I know about iTunes Match, and I think I like it, now that I've gotten used to a few of its quirks. But certainly there are times when the owner of downloaded, commercial audio files (i.e. Tunes) will not have them on his computer. And certainly there must be a way for me to see what I've previously stored in the Cloud--if only to remind myself of the music I've purchased and have available to me.
I may be missing something about the whole iCloud concept. Is there a way for me to see tunes I've previously stored in the iCloud but no longer have on my computer? (I'm always careful not to delete tunes from my iTunes program unless I see 2 or more identical files appearing on my computer).
Thanks for any directions to the iCloud musical holdings / archives--or clarification of any misunderstandings.
Cap
(I see that I'm currently running OS 10.8.2. I have only 500 gigs of memory, and my music collection is so larg, I'm almost dependent on being able to access songs in the iCloud. Next time, I'll certainly pony up for the largest memory Apple offers on an iMac.)

They are not showing up in Lightroom at all. I already deleted them.
When I try to import them again into Lightroom it wants to add another 2012 folder to wherever I am trying to insert them and then it does the month/day folder when it already has the month folder it should automatically go into and not be adding a seperate 2012 folder first.
I can't even get it to do the above right now. Now all it does is it wants to make this seperate 2012 folder with the month/day folders but has little boxes beside each folder showing that there are no images to import. The images do show up on the import screen but they are all darkened and unchecked. When I click the proper folder to import them they come on bright and have little boxes checked, but that lasts for less than a second before it decides they are not new. They are new images, I deleted them all out of Lightroom, and probably missed deleting some through Lightroom but instead deleted them straight from the folder outside of Lightroom. This is what is probably causing me such grief and I have found nothing in my searches to tell me how to correct this. *sigh*

Laptop-mode-tools no longer adjusts LCD brightness

I just discovered that laptop-mode-tools no longer adjusts the brightness of the LCD when switched to battery. This is not a general issue. laptop-mode is active on battery (as well as being enabled via the systemd service), the computer knows it is on battery (checking with on_ac_power and reading from /sys/class/power_supply/*/* give the expected results) and other things are correctly adjusted e.g. bluetooth is blocked with rfkill. Moreover, as root I can adjust the brightness in the usual way by hand:
echo 10 >| /sys/class/backlight/acpi_video0/brightness
works just fine. The >| is needed because for interactive shell's, root's .bashrc sets noclobber. This obviously doesn't affect laptop-mode tools because it doesn't run an interactive shell. In contrast:
$ cat /etc/laptop-mode/conf.d/lcd-brightness.conf | grep -v "^#"
DEBUG=1
CONTROL_BRIGHTNESS=1
BATT_BRIGHTNESS_COMMAND="echo 7"
LM_AC_BRIGHTNESS_COMMAND="echo 10"
NOLM_AC_BRIGHTNESS_COMMAND="echo 12"
BRIGHTNESS_OUTPUT="/sys/class/backlight/acpi_video0/brightness"
DEBUG wasn't 1 when the problem started. I tried setting it to get more info but haven't found anything more in the journal/logs.
KDE is set to not touch the default brightness at all. All it does is (further) dim the display after so many minutes depending on the power supply and status.
This did work fine but I haven't been on battery for a while so I'm not sure when exactly it stopped working. My brightness is set by default to 12 on boot or wake from sleep which suggests laptop-mode tools does something or something else is now handling this which I'm not aware of. But the switch to battery does not trigger any alteration in the brightness and laptop-mode status does not even mention LCD brightness as one of the things laptop-mode tools controls.
Have I missed a change in how this is handled somewhere?

I doubt this is related but it is currently my only lead so here goes. I set the LCD brightness control for debug so I've been trying to watch it. However, so far it is all smiles e.g. on boot it all works fine and says so.
However, I found I'm getting another error on boot which is
/usr/share/laptop-mode-tools/modules/pcie-aspm: line 10: write error: Operation not permitted
Note that I copied that by eye from VT1 so if a colon is out of place, that's why.
The contents of that file is:
#! /bin/sh
# Laptop mode tools module: PCIe Active State Power Management
if [ x$CONTROL_PCIE_ASPM = x1 ] || [ x$ENABLE_AUTO_MODULES = x1 -a x$CONTROL_PCIE_ASPM = xauto ]; then
if [ $ON_AC -eq 1 ]; then
log "VERBOSE" "On AC power: setting pcie_aspm to default"
if [ -f /sys/module/pcie_aspm/parameters/policy ]; then
echo default > /sys/module/pcie_aspm/parameters/policy
if [ $? -eq 0 ]; then
log "VERBOSE" "PCIe ASPM set to 'default'"
else
log "VERBOSE" "PCIe ASPM tweaking is prohibited by the kernel"
fi
else
log "VERBOSE" "PCIe ASPM is not available"
fi
else
log "VERBOSE" "On battery: setting pcie_aspm to powersave"
if [ -f /sys/module/pcie_aspm/parameters/policy ]; then
echo powersave > /sys/module/pcie_aspm/parameters/policy
if [ $? -eq 0 ]; then
log "VERBOSE" "PCIe ASPM set to 'powersave'"
else
log "VERBOSE" "PCIe ASPM tweaking is prohibited by the kernel"
fi
else
log "VERBOSE" "PCIe ASPM is not available"
fi
fi
else
log "VERBOSE" "PCIe ASPM power savings module is disabled"
fi
So I assume it is saying it cannot write to /sys/module/pcie_aspm/parameters/policy but the permissions etc. on that, at least, don't look strange:
l /sys/module/pcie_aspm/parameters/
total 0
drwxr-xr-x 2 root root 0 Gor 25 21:24 ./
drwxr-xr-x 3 root root 0 Gor 25 21:23 ../
-rw-r--r-- 1 root root 4.0K Gor 25 21:24 policy
Last edited by cfr (2013-07-25 20:47:13)

Computer Brightness

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