2 monitor brightness control non-existant?

New Mac Pro and new second 23" monitor.
Brightness buttons on both monitors do nothing when both monitors are on. When only primary, OK.
Is this the way it works? Hmmm…

Is the "Disable Brightness buttons" box unticked in the Display preferences/options window? You may need to do it separately for each monitor.

Similar Messages

Extra monitor w/laptop in office, when out of office how do I prevent Firefox from displaying on the non-existant 2nd screen?

When I am out of my office using my laptop, upon launching Firefox, it displays all of the tabs from the previous session on the non-existent extra monitor which is set up as a screen extention for when I am in my office. All of the other programs that I park on the extra monitor (Outlook for example) display on the laptop's screen when the extra monitor is not attached. Is this a bug? Or, must I not save my open tabs when exiting Firefox if I am going to use the laptop w/o the monitor?

Thanks for your suggestion. I sort of came to that conclusion as I was typing the original question. However if there is anyone out there who has a solution that is not dependent on my remembering to do something before I exit Firefox, it will be welcomed.

Brightness controls disabled after Monitor OFF-ON cycle

So this has been a weird problem on my T400 with discrete graphics. I frequently turn my monitor off on battery. Hoever, once I resume it, the brightness control ceases to function. I can see the OSD but there is no control. Also the monitor resumes with lowest brightness. I have power manager I and started noticing the problem after the update.
- The only remedy i have so far is a full restart.
System
T400 8600
3 GB Ram
Discrete Graphics
Windows xp Pro.

Based on cycle count and capacity your battery is in great shape. You might check the adapter and port for debris, and try an SMC reset:
http://support.apple.com/kb/HT1411
Only Apple can determine whether you qualify for a free replacement - they have a battery tester which they'll use if you bring your MBP into an Apple Store.

HT202856 Can keyboard brightness controls be mapped for a 4K monitor on the Thunderbolt port?

I have a 4K monitor (ASUS PQ321Q) attached to my late-2013 MacPro.
The monitor-button controls for adjusting brightness are awkward, to put it kindly.
Keyboard brightness controls don't seem to work. Is it possible to map them to control the external 4K monitor's brightness?

Yes. Here's a quote from the attached article:
If your Mac has one or more Thunderbolt ports, you can connect up to two displays to those ports.
http://support.apple.com/kb/PH3793

[Solved]Brightness control doesn`t work anymore

Hi!
I`ve made my 3rd update of Arch since installation, and... where previous two succeeded, the third one failed. It messed up my system
The problem is, i cannot change brightness any more through my function keys (and since i`m using Openbox as my DE, i cannot change it at all ). The brightness now is so low that i can barely see what i am typing. And it is not only in my Arch, it also messed up Windows and everything else: grub, bootup screen where i can select bios properties - everything. I ran xev and now i see that FN+Right/Left are not detected anymore as brightness keys. It says:
FocusOut event, serial 32, synthetic NO, window 0x3200001,
mode NotifyGrab, detail NotifyAncestor
FocusIn event, serial 32, synthetic NO, window 0x3200001,
mode NotifyUngrab, detail NotifyAncestor
KeymapNotify event, serial 32, synthetic NO, window 0x0,
keys: 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
However, FN + Win + Right/Left are now detected as brightness control function keys
KeyRelease event, serial 35, synthetic NO, window 0x3200001,
root 0x13c, subw 0x0, time 521221, (348,-43), root:(1219,884),
state 0x40, keycode 233 (keysym 0x1008ff02, XF86MonBrightnessUp), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
But pressing them doesn`t work either. I thought that it was xfce4-power-manager problem, but changing to gnome-power-manager didn`t help either.During the update pacman also upgraded kernel to latest version.
Any ideas?
P.S. My notebook is Acer Aspire 7720g with Nvidia 8600M GT. I tried solutions from this topic: http://bbs.archlinux.org/viewtopic.php?id=73889 but none worked for me... The problem is that the system is completely unusable at this point, since i barely see anything on the monitor, and that sucks
Last edited by K0tuk (2009-06-27 08:02:56)

I can't see what you did in Arch affecting your windows installation at all. If you try to boot into windows and increase the brightness (since most laptops store the brightness level of the laptop as it was set, on battery, at least my 2 laptops do), does the new brightness level "stick" for all things? If so, the only issue you have is to re-map the function keys properly, and to configure a script or something to increase/decrease lcd brightness. You can make a simple script that echoes a value into your /proc/acpi/video/LCD/brightness file (the file path will vary, so it may be under UVGA or so). If, however, it doesn't increase again, it may very well be a hardware issue, and not a software (since, as I said above, it's highly unlikely that an Arch update has affected Windows in any way).
Last edited by lswest (2009-06-26 12:28:04)

ACD 23" Brightness controls inoperable

Like SO many other people I was having trouble with my ACD 23" monitor not turning on at start up. By swapping out components with an identical monitor, I determined that the problem is most likely the power brick.
I am currently using an identical power brick borrowed from a friend and the monitor is working again, but now the monitor runs at FULL BRIGHTNESS all the time. I have no ability to adjust the Brightness throught the control panel, monitor buttons or F14/F15 function keys.
I have tried rebooting to correct it, but no success. Is it possible that a preference file needs to be thrown away and rebuilt, or could it be something else??

I am having the exact/identical problem. I purchased my 23" Cinema Display three days ago. Everything was fine then all of a sudden, without touching the keyboard or monitor the brightness icon came up and increased to full brightness. I rebooted... nothing. None of the side control buttons work and my monitor light is not on, although the display is on (& at full brightness). I tried going thru System Preferences -> Monitors -> brightness, but it overrides the brightness that I slide to and goes to full brightness.

Satellite C650-I5011 - Brightness control is not working

Hi,
I have a Toshiba C650 - I5011 model with Ubuntu 10.3 . I have a problem that even after pressing the Fn + F6 key, the brightness of my LCD does'nt change.
It remains at maximum.
I have installed both Toshutils and hotkey daemon. My volume control key (on numeric alternate) works perfectly fine but none of the Function keys work. Pls help.
Also, I had errors during installation of Ubuntu on my laptop because of which I had to permanently disable ACPI, else it won't boot. Following is the lspci output :
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05)
00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 05)
01:00.0 Ethernet controller: Atheros Communications AR8152 v1.1 Fast Ethernet (rev c1)
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)

Hello,
The backlight detection depends from acpi options selection on your kernel. Which kernel version do you use ?
$ uname -a
(Use at least a 2.6.36 kernel since a lot of improvement for recent Toshiba laptop have been done during summer 2010)
This done, ACPI options beeing compiled into kernel or loaded as module, this line should appear in your /var/log/Xorg.0.log :
"found backlight control interface /sys/class/backlight/acpi_video0"
Having a C650-15Z, my brightness control works well.
regards,
alex

Brightness control not working in Windows 8 x64 after sleep with Boot Camp 5.0.2

Hi,
I am using Boot Camp 5.0.2 with Windows 8 x64.
Wheen the computer has been in sleep mode, and wakes up again, the brightness control won't work as expected.
Usually the screen is to dark (darker than before, what it should be), and after some time pops up brighter as it should be.
Has onyone else seen this issue?
I mean, it seems that for brightness we use the internal control GUI of Windows 8, and not the Apple one that is used in Windows 7 and in Windows 8 for the sound control.
Macbook Pro 13" Retina, early 2013 (brand new) with 8GB RAM and 512GB SSD and 3.0GHz i7.

I have been having the issue of no brighness control when running windows through bootcamp for about 6 months now and have not found any applicable solution online.
While messing around trying to figure it out yet again I noticed that my monitor driver was signed by team viewer...
Sure enough clicking the roll driver back button resolved the issue by rolling the driver back to the Microsoft driver...
So long story short:
Right click "My Computer" click properties
Click device manager (lop left of window)
Expand Monitors section
Double Click monitor
Click driver tab
If the driver here is not signed by Microsot or Apple click the roll back button. My driver version is 6.1.7600.16385 (Driver date 6/21/2006)
Rolling this back instantly resolved my issue. I will now propagate this post to all the threads I saw regarding this issue.
I am running windows 7 x64 Ulti on a 15" rMBP.
Best of luck

No screen brightness control on an envy 17

I had some maleware that was removed and it broke the Catalyst Control Center, I only has the Intel 300 HD to view the screen from.
I used the 14-4-mobility-win7-win8-win8.1-64-dd-ccc-whql from 3D GuRu
and,
win64_152822 intel hd 3000 from the intel site.
I have the popup omn the screen from the keyboard shortcut, but nothing haoppens. its on full brightness.
Left click the battery icon in the tray and there is a place for 'Adjust Screen Brightness'. It takes me to a page 'Select A Power Plan' where it SHOULD be but doesn't show up. If I select 'Change Plan Settings' it is there but has no effect. its all still full bright.
It was working fine until the malware.
Did sfc /scannow, nothing to report.
Any ideas on this?
FJW
Envy 17-3090NR 3D NON drivers
14-4-mobility-win7-win8-win8.1-64-dd-ccc-whql
win64_152822 intel hd 3000

Hi @fjward ,
Thank you for visiting the HP Support Forums and Welcome. I have looked into your issue HP ENVY 17-3090nr 3D Edition Notebook PC and issues with brightness control and the Catalyst Control Center. I would uninstall any graphic drivers that are listed and CCC software, restart the computer, then reinstall only the AMD. It will include the Amd Graphics Driver and Catalyst Control Center restart the computer.
Here is a link to the HP Support Assistant if you need it. Just download and run the application and it will help with the software and drivers on your system.
You can do a system restore. System restore will help if something automatically updated and did not go well on the Notebook.
When performing a System restore please note remove any and all USB devices. Disconnect all non-essential devices as they can cause issues.
Please let me know how this goes.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

Failure of Shades, DarkAdapted and Brightness Control

My iMac display is too bright even at it's lowest setting.
A new profile in Display Preferences can't deal with this and the contrast control in Universal Access also doesn't help.
I've tried 3rd party software. Brightness Control continually loses it's setting when the screensaver starts. Shades doesn't work for me because it leaves the pointer undimmed and that small too bright area is right where I need to look. And DarkAdapted is limited by the same screensaver problem as Brightness Control.
I sure wish Apple displays could dim adequately as in the past.
Any suggestions appreciated.

I have DarkAdapted Pro, with registered version, it load your profile at mac os login, and darkadapted its a real bright control, not like brightcontrol (deform colours)...
One question, do you have bright gradient left to right on your mac 24 alu?.. more bright at left side of your monitor, to view this, move one window at the left, and then move it at the right, if you see one variation of white values then the gradient is there!... ok it is my problem and a lot of people are at the same situation like me... not sure if it is a general problem...
Ok see you bye!

Home Monitoring and Control with a third party also monitoring and controlling?

I was wondering if anyone has tried to install Home Monitoring and Control with a third party monitoring, and or controlling the same devices. I know many systems offer multiple control points such as auxilary control touch screens. Has anyone made this work? I have Z wave devices on my home security system (lighting), and would also like to monitor them via Verizon. Possibly also adding some energy monitoring and control, that is not available via my security company. My security monitoring company provide support through Alarm.com, but has limited energy monitoring to thermostat control and such.
The only interactive control with my security company is for alarm monitoring and control, with limited lighting control. All of my devices are GE in the wall mounted lighting controls, and I would prefer to pay Verizon the few extra dollars for the additional features VIA the web, rather than pay Verizon. There used to be an energy package, that included the main power panel load and I thing Thermostat, but I believe some of the bundles have been split up.
There are other options out there now, but I have neen exploring. My GE Switches are from the Lowes Iris system. Much less expensive, and can replace existing wall switches, not like the power cord switches. Plus the store is four miles from my house.

I started with Verizon home monitoring, but if you read through the threads the service is extremely unreliable, still to this day. I am stillusing it, although I am waiting for a refund on the services that I have used since it is so bad but I bought a MiCasaVerde Vera3 system. You pay appoximately $300 for the unit and there is no monthly charge and you get all the features plus pretty much unlimited types of z wave devices to use on it. I would seriously consider using that before Verizon.

Error in SWWERRE "No personnel control record exists for accounting area 99"

Dear Experts,
The standard job for restarting of workflows with temporary errors , SWWERRE, has suddenly started failing.
The message obtained in Job Log is "No personnel control record exists for accounting area 99".
The Payroll Control Record for Payroll Area 99 does not exist as it is a non-payroll relevant area.
There has been no change in HCM configuration or Job characteristics.
What could have triggered these sudden failures.
Please suggest.
Regards,
Shilpa A.

Hi Shilpa
This is not an issue with the report RSWWERRE (Job SWWERRE).
It must be trying to pickup work items which are in Error State (temporary) - that item may have this data issue - Run Report RSWWERRE from SE38 and debug, you will come to know.
Check if:
1) The error WI belongs to TRIP (BUS2089)
2) Put a break point in FORM SUB_ABRECHNUNG(SAPLHRTR) and run report RSWWERRE (if the work item is still in TEMPORARY ERROR SATE and has not converted to permanent error) ..... debugging should stop there if the above point is correct
3) This will give you the Trip and Employee number - check if the data is consistent (BAPI_TRIP_CHECK_STATUS)
4) This usually happens when you use &TRIP.AVSEXORADAUTHORITYLEVEL& in the binding (of the error step)
if this is true, correct the data and it should work else delete those work items and restart the job (remember to correct the data to avoid future issues).
If not,
still the fist point holds true, "It must be trying to pickup items which are in Error State - that item may have the issue - Run Report RSWWERRE from SE38 and debug, you will come to know." Some errors are deep rooted and cannot be caught by the job
Also check if note 1452535 is relevant for your release.
Regards,
Modak
Message was edited by: Modak Gupta
............Also check thread: ..
http://scn.sap.com/thread/2021322

IPhoto "importing" spurious non existing photos

iPhoto constantly tries to "import" 2 non existing photos every time it opens.
I tried import as an answer to the - do you wish to import? question as well as No in answer to the annoying start-up question, but all to no avail.
How do I stop this annoying start-up?
Please assist if you know the cause..

Quit iPhoto and to to the iPhoto library (by default in your pictures folder) - right click (control click) on it and select show package contents - find the folder named import (on importing) and drag it to the desktop - DO NOT MAKE ANY OTHER CHANGES - launch iPhoto and you will be fine.
Open the import(ing) folder and if there is nothing in it that you need move it to the trash and empty the trash
LN

Brightness Control not working after Windows 8 install...

Hi All,
I have a late year 2010 MBA core2duo with 4GB of ram, and I was running Windows 7 for a long time and recently bought a Windows 8 upgrade key. I heard the boot camp drivers were updated so I decided to load it up. I installed the new boot camp drivers on the Windows 7 side before the upgrade (had to use the command line to do the driver upgrade).
Windows 8 is all installed and the only issue I have is the brightness control doesnt work at all. I disabled the adaptive brightness as a lot of threads have been saying. Anybody have any ideas what I need to do to fix this?? It seems to be stuck on BRIGHT.

I have been having the issue of no brighness control when running windows through bootcamp for about 6 months now and have not found any applicable solution online.
While messing around trying to figure it out yet again I noticed that my monitor driver was signed by team viewer...
Sure enough clicking the roll driver back button resolved the issue by rolling the driver back to the Microsoft driver...
So long story short:
Right click "My Computer" click properties
Click device manager (lop left of window)
Expand Monitors section
Double Click monitor
Click driver tab
If the driver here is not signed by Microsot or Apple click the roll back button. My driver version is 6.1.7600.16385 (Driver date 6/21/2006)
Rolling this back instantly resolved my issue. I will now propagate this post to all the threads I saw regarding this issue.
I am running windows 7 x64 Ulti on a 15" rMBP.
Best of luck

Hey Admin(Karl) Still have brightness control problem w/dual ACDs on G5

Can someone on the administrator or tech 3 or 4 guru level from Apple Please tell me what I need to do to access the brightness controls of my two previous generation "clear with/ white frame" apple 23" cinema displays ? I posted here two weeks ago - had no responses.
Went to AppleCare via phone for an hour - Indian person trying to help said it is available in the monitors prefs tabs/and monitor pull down menu on the menu bar next to the time ( nothing but resolution/arrangement/color profile there ).
I have since re-installed 10.4 from the original disks AND upgraded to 10.4.3 - Hoping that something would change. Nothing did.
Nothing shows up on screen when pushing the brightness buttonon either monitor, OR when I go to the monitors control panel - no brightness slider or tab on top.
It is driving me crazy to have to review my work ( digital photography ) on my old G4 system to be able to judge the proper density of the images.
I can profile the pair with a Spyder2 calibrater, and load the profiles fine, but again brightness is the issue, not the color. One of the displays is about 30% brighter than the other, and there in lies my problem.
Since the same difference in the screens is the same across various applications ( Final Cut Pro / Adobe PS / DVD player ), can I assume that this is a system issue software issue ?
Am I the only one having this problem ? Or is there just a glitch that no one has managed to tackle and fix even this far into Tiger ?
Please someone reply and save my sanity !
Mel
NEW Powermac G5 2.3 w/ dual port stock video card Mac OS X (10.4)

Hi Mel,
Sorry to hear that you are having problems.
I feel I have to point out that most of the 3 or 4 level Gurus don't actually work for Mac. We tend to obtain our knowledge from our own experiences plus sharing other peoples' experiences in this forum.
The reason I haven't responded to your issue myself is because I have no first hand experience of your problem, and I haven't been able to find anybody else who has had this problem and has been able to fix it. I'm always reluctant to respond unless I feel I have some information that will really help (or, at least, not possibly make things worse).
Anecdotally, this issue appears to have surfaced with the release of Tiger, so it may well be a software issue.
I don't know how old your G5 is - will it function with Panther? If that is the case, then installing Panther on another drive or partition (i.e. keep Tiger for now), and then booting up with Panther may give you an interim solution while the issue (hopefully) gets resolved in Tiger.
The fact that the brightness options are not available probably means that the drivers bundled with the Tiger installation for the graphics card that is in your G5 do not support the displays you are using properly. I believe that the stock video card you are using is an ATI card (you might want to check this via system profiler). At this stage, it would certainly be worth your while to contact ATI support and see whether they have drivers available that will assist you. This link may help get you started:
http://www.ati.com/products/mac.html
I acknowledge that I haven't really given you a solution, and I apologize for that. Hopefully, what I have given you will give your quest some direction.
Please let us know how you fared. All the best.
Cheers!
Karl

2 monitor brightness control non-existant?

Similar Messages

Maybe you are looking for