Hardware :: Unable To Control Display Brightness / LCD Panel Replaced?
Dec 29, 2009
I have a 24inch LCD ACD display connected to my Mac Pro. This display all used to work OK, but now, read on. I had to send this 24inch LCD ACD display away to have the panel replaced. Since it has returned when I look in About This Mac/Displays it shows that I have an iMac connected as the display and now the brightness cannot be controlled. If the 24inch LED ACD is connected to my Macbook it all works as it should
I have setup the 23i cinema display with mac pro. I have connected the USB and firewire cable to mac pro.. and keyboard is attached to back of the display. For some reason I cannot seem to adjust the brightness of the display from the keyboard (though I can do it from the side of the monitor). Neither can I see the brightness slider bar in the display settings. Also while the display is the the power led in the front blinks 3 times, then there is a little pause, and blinks 3 times again. How to fix this brightness control issue with the display. I have reseted PRAM and NVRAM... still nothing has changed. Also note I do not have and options tab for some reason.... (I have tried to plug the display's usb into the back 3 usb of the Macpro... still nothing)
I cannot control my screen brightness using the F5 and F8 keys. The only way I can adjust it is through System Preferences. I tried just F5 fn F5, Control F5, Option F5 and Command F5 and non work.
I have two computers (Mac and PC) connected to a cable modem via Belkin router. Both can connect to the Internet.
My Power Mac G5 2Ghz has two internal hard drives. My primary boot drive has Leopard 10.5.6 and the secondary has Tiger 10.4.11.
I had the built in Firewall set for "Allow only Essential Services" then I changed it back to "Allow all incoming connections" before I installed Netbarrier X5. My access to the internet and router/control panel was fine.
Then suddenly my G5 (Leopard) was no longer able to log into the router/control panel only the PC (Windows XP). Tried Safari and Firefox and both come back with the error message "Safari can't connect to server."
When I boot the G5 into "Safe Mode" it is the same thing, can connect to the internet but have no access to the router control panel. So it can't be Netbarrier.
But If I my G5 reboot with my second drive that has Tiger. My access to the router's control panel is restored.
I am new to Mac and need some help. I just installed norton antivirus for my mac and the software accidentally created duplicate icons in the top right control panel. I am wanting to delete one of these but haven't been successful. I already tried the command and drag off but they don't move, they are stuck there. Any remedies to this? How can I get them off the top right control panel?
The brightness goes up when you plug in your MBA, but then over time it just goes up and up. I honestly like my brightness pretty low (rarely more than half, typically at 3-5 notches), but it just keeps on going up and up. I almost never set it above half, but multiple times a day, I notice that it looks pretty high and it's at like 3/4 so I put it it down to about 1/3, but after a while, it's just up again.
Anyone else notice this? What is it, why does it do this? How can I fix it? I don't mind not having auto-brightness (even though I loved it), as long as my screen doesn't keep going up.
After upgrading from OS X 10.5.8 to 10.6(and 10.6.1) my control panel Security does not open but crashes. With the upgrade to 10.6.1 the control panel now says "loading Security (32 bit" but will not open the Security control panel. All other control panels icons work on my duel 2.93 Mac Pro.
I have no idea how this came to be, but my dock no longer has the system settings / control panel icon, and I have no way to access any of my system settings now. Using Snow Leopard. Has anyne seen this happen before and does anyone know how I can undo this?
I just paid to upgrade QuickTime and received a registration code. Tho problem is there is no way to find the QuickTime control panel via the Windows 7 Home Premium control panel. How to I ovrcome this?
I just got a Razer Imperator mouse and downloaded the version 1.0 drivers for it from Razer. The control panel has settings for sensitivity, acceleration, polling rate and the lighting (scroll wheel and logo), but none of them work.
I can change any setting I like, but when I close and reopen the control panel, they are reset to default. The mouse is working but the sensitivity/tracking speed isn't quite right, but nothing I do seems to affect it.
Also when I restart my computer, I'm told I have either no mouse plugged in or have a keyboard plugged in that is not recognised. Unplugging and re-plugged the mouse fixes that.
Is anyone else using this mouse? Does the control panel work for you, or do you use some other control panel/driver/extension?
I have just connected my Canon Pixma MG5270 to my iMac running OSX 10.7.3 via WiFi. Printing works great, and scanning from the desktop "Canon MP Navigator EX - MG 5200 series" V 4.0.3 application works like a dream. When I try to scan via the operations panel on the printer/scanner the following comes up - Set the PC to start scanning". This worked fine when connected directly via USB cable. I have searched the web and believe I have the correct settings, particuliarly in MP Navigator:
1. Main Menu -> One-click -> Start scanning by clicking the button (checked)
2. Main Menu -> One-click -> Preferences -> General -> Compress scanned images when transferring (checked) -> Change -> Network Device List (selected Canon MG 5200 series_xxxxxxxxx) -> Scan-from-Operation-Panel Settings -> Network Device List (selected Canon MG5200 series_xxxxxxx) I have restarted the iMac and printer and always with the same result.
so I'm planning on buying and LED Cinema Display to go with my Mac Pro. I have a few issues before I pull the trigger...
Currently, I'm using a 23 inch Acrylic Cinema Display and have found that there is no way to adjust overall monitor brightness. Even using the ATi control panel (my Mac Pro has an Apple branded ATi 4870), there are no true brightness controls either on the software side in Windows (I haven't found a way to change brightness in Windows like I do in System Preferences in OSX) or on the hardware side (no buttons on the monitor itself).
Basically, as soon as I use bootcamp to reset into Windows, I notice that the screen immediately goes to the lowest brightness (even though I was running the max in OSX before switching) settings as soon as I go into the desktop. Playing games like this is irritating.
I know the LED Cinema Display also has no brightness buttons on it, so will I still be SOL?
It seems that the control keys for brightness (default F1 & F2 keys) and volume (default F3, F4 and F5 keys) have moved to another key combination. Don't ask me what I've done . I already tried Fn, but that did not help.
Does any know how to rearrange the keys to the default keys?
I've got a 2009 Mac Pro with both a 4870 and a GT120, and I'm experiencing a strange bug with the brightness controls. The keyboard buttons only control one panel, and *both* of the sliders in the displays system preferences panels only control that same display. There is way to control the brightness of the other panel.
I don't know if anyone posted this issue before. I can not control screen Brightness on my MBP 13'. I tried my F1 and F2 key and the Nvidia Control Panel, either of them is working. I installed all the drivers from the CD and it can actually show the icon in the center(bottom) of the screen when I hit the F1 or F2 Key. However, the brightness adjust does not work,the screen stay the same.
When my laptop is connected to my Apple Keyboard, I can control the brightness with the F1 and F2 keys on my external Apple Keyboard. However, when I connect an external monitor to my MacBook Pro, the F1 and F2 keys no longer work.
Is there a way to control the brightness of my laptop's screen (NOT the external monitor) with my external Apple Keyboard even when an external monitor is plugged into my MacBook Pro?
I bought this c2d macbook pro 15'' in early 2007. Today I installed windows 7 on it (bootcamp 2.1). Everything worked perfect except the screen brightness control. The strongest level is very bright (same as the one in Mac), but the second level is very dim. I remember having this problem back in 2007 when I installed winxp on my mac. Looks like the problem still exists. Anyone here knows how to fix it?
So I installed Vista 64 bit on my Macbook Pro (Santa Rosa), I installed most of the drivers I can find, but I cant get the screen brightness buttons to work (F1 and F2)
I have dual ACD's. How do I make it so that both screens have the same brightness? If I adjust the brightness in the display settings it adjusts the main screen, but then not the other one. How do I make them the same?
I have a macpro with OSX on one drive and windows 7 on a partition of another drive. Both systems work fine and I boot into windows by holding the option key down. What is odd is if I go to the system preferences startup disk my windows install does not show up. I did move my windows partition a while ago to a new drive. I used bootcamp to create the partition and winclone to move the data. It's not a big deal not having the option in the preference pain but would be nice. If I am in windows and go to the bootcamp control panel both OS X and Windows are there.
If I log into Windows as a normal user (not administrator) and open the Boot Camp Control Panel, I'll be missing the Startup Disk pane. The only ones available are Brightness, Keyboard and Trackpad.
Is there any way to get the startup disk tab to appear while logged in as a normal user? I don't like the idea of having to run as an administrator all the time in Windows.
I'm currently using a macbook pro 17" 10.5.8 / Unlike windows os, it alerts you in many occasion, for example: low battery, usb device inserted, etc. and you can change the alert sound for everyting in the control panel, sound, option.
so basically, how do I do the same thing on mac? do i need to install additional software? if yes.. any suggestion?
For anyone wanting to use their Mini Display port connector on their 4870 with a panel that has the standard size display port connector, I've found a source for a cable that works perfectly. It has the mini display port on one end and a full size display port on the other. Cost $19 bucks shipped and works like a champ. The cable is nice and compact, thinner and more flexible than my DVI cable. I'm quite pleased! ( it's the little things.... )
Here is the cable I picked up: Mini Display Port to Display Port cable
I was using my MBP when I noticed that the display (the built in one) looked a little washed out. To make sure my color profile was set to the correct one, I opened up the display panel in System Preferences. The moment I opened it, the display snapped back to its regular appearance. As far as I can tell, it goes into the washed out version after going to screensaver and coming back, and going into display prefs is the only way to restore it. Anyone seen this before or know how to keep it from doing this?
