Screen flicker with multiple monitors

I tried plugging an external monitor into my laptop and though the second screen came up it caused both screens to flicker continuously with horizontal lines going across. This happened both when I used xrandr manually and when I used the Gnome control panel. It's been a while since I used an external monitor so I'm not sure if a particular update broke anything. Any help would be appreciated.

Try to run all displays in the same resolution (the settings of the less advanced, smaller display, not the other way around). Additional displays require additional processing, close other applications. Unplug the 23" for now, try it when you've got everything else running. Restart connected computers after you've changed settings on any detectable display. Make sure the bandwidth is sufficient for screen sharing on both ends. (I would use Spaces on the remote computer to create speedy access to applications.) When this works, try to connect the external display.

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[Non IE Regression] Support for full screen mode with multiple monitors

This seems to be a regression with Flash Player v11.2.202.x (for all other browsers).
With Internet Explorer it is still working.
http://kb2.adobe.com/cps/890/cpsid_89050.html
== Support for full screen mode with multiple monitors ==
Full screen content will remain in full-screen on secondary monitors, allowing users to watch full-screen content while working on another display.
Tested on Windows 7 x64 SP1 with:
- Internet Explorer 9
- Firefox Release, Beta, Aurora, Nightly
- Opera 12 build 1116
In bugbase.adobe.com I cannot choose v11.2.x

Please vote for it If you have the same problem:
https://bugbase.adobe.com/index.cfm?event=bug&id=3016912
Thanks

IMac early 2008 occasional screen flicker with external monitor

I am experiencing flickering with my early 2008 iMac when driving an external monitor. My Thinkpad is flawless when pushing out to the monitor.
It will be fine, but occassionaly (every 5-20seconds) the screen gives a little flicker, about 1/4 of a second in duration.
Also, sometimes, there is no flickering, it depends on what is being displayed, which makes me think video card. I am using the 2400XT and my software is up to date.
ROM Revision: 113-B2250H-259
EFI Driver Version: 01.00.259
I am thinking about trying to source a 2600pro that came on the more high end version of my iMac and swap out the graphics card. I also want to drop a 2TB hdd in it, so I figure I might as well kill 2 birds with one stone, or kill 1 iMac with 2 simutaneous upgrades if I am unlucky! (o_O)

iMacs are not designed to have the graphics cards upgraded. If your old card is bad and you feel competent to exchange it for the same one that's really your only GPU option. Apple never said the iMac GPU's were upgradeable and frankly I've never heard of anyone successfully upgrading an iMac GPU.
As far as the adaptor well you could bring your system into an Apple Store and have it checked out by a Genius, it's a free service. I don't know how to make a reservation in Japan but I'm sure you can from the Japanese Apple site. The link in the US is:
http://www.apple.com/buy/locator/service/
I'm providing that so you can look for something equivalent.

IChat Screen Sharing with Multiple Monitors

I love the new Screen Sharing feature included in iChat 4 as part of Leopard. It is an incredible diagnostic tool that will make it much easier for Mac users to help support each other.
The problem I've run into is that our "standard" config at work is a 15" MacBook Pro with a 23" external display. When doing Screen Sharing from this system, both displays are shrunk to about half their size so they can fit on the main screen of the remote computer. In many cases this works fine, but the images and text can be pretty small on the viewing computer.
Is there any way to control the scaling on the viewing computer? Is there any way on the computer that is being shared to say, only share this monitor?
Just trying to find a way to make the image easier to see on the remote computer.
Steve

Try to run all displays in the same resolution (the settings of the less advanced, smaller display, not the other way around). Additional displays require additional processing, close other applications. Unplug the 23" for now, try it when you've got everything else running. Restart connected computers after you've changed settings on any detectable display. Make sure the bandwidth is sufficient for screen sharing on both ends. (I would use Spaces on the remote computer to create speedy access to applications.) When this works, try to connect the external display.

Can you have multiple users working off the same Mac pro at the same time with multiple monitors but doing different things?

I'm buying desktops for a start up company and was wondering if I could purchase a single Mac Pro and run multiple monitors to allow multiple users to work on the computer at the same time. These users would be doing different tasks but I would hope to accomplish that on a single desktop. I know that screen sharing is possible but with only one user controlling both of the screens. Thanks in advance, sorry for my apple ignorance!

A lot of companies are buying or leasing laptops to be used at the office by day, and carried home at night.
Some companies are doing "Bring your own device". Bring a device to receive email -- computer/smartphone/tablet you already have, or have an allowance to buy one for your use.
If Capital is short (and when is it not) leasing computers, to be turned in a few years, can be a huge savings because the cost is expensed as incurred. The alternative is laying out cash today, but not being able to expense the cost this year. Instead, the computer expense must be recovered over their useful life (often five years) through depreciation.

Screen flicker on external monitor

Has anyone had any experience with screen flicker on an external monitor? I connected my laptop to an external monitor and I get consistent flicker on the whole screen. If anyone can help, or could help pointing me to website etc. I'd appreciate it.

Good suggestions guys I'll put out some more information. The cable is ok (good thought to check for it). I plugged my vga cable to my tv and do not get the screen flicker. Also I'm using the ati driver which possibly has the same problem as the intel, one. I configured my xorg.conf as describe in the wiki xrandr page:
http://wiki.archlinux.org/index.php/Xra … _xorg.conf
One thing that I noticed that is a bit odd is the xrandr reports the display rate as 60.1. I've never seen this before so right now I'm thinking that it has to do with that.
xrandr
Screen 0: minimum 320 x 200, current 1440 x 900, maximum 1440 x 1440
VGA-0 connected 1440x900+0+0 (normal left inverted right x axis y axis) 410mm x 257mm
1440x900 60.1 + 75.0*
1400x1050 74.9 60.0
Still up the river so any more suggestions would be definitely appreciated.

How can use full app with multiple monitor

in Lion and Mountain Lion
when i use Multiple Monitors and move any app in full-screen mode
its become in one monitor and other monitor become blank
but it seems usefull that other monitor show another app in fullscreen mode
how can i do this ?
and sorry for my bad english!!

Sorry to say, but it is designed to work that way.
The only way around it that I know of is, not to use full-screen but just fill the screen with the application that you are using.
A

Flash with multiple monitors

Hello,
I have an issue with the Flash projector and multiple
monitors.
I develop an application with .exe file that run on a
multiple monitors enviroments, when I try to get a full screen
(with CTRL + F or fscommand("fullscreen", "true")) the display goes
only to the primary screen.
The only thing that work is to maximize the application but I
get the menu and the windows bar and button.
Do anyone have an idea how to fix it??
Thank you in advance.
Javier.

Thank you Russ,
What I do is to Extend the Windows desktop to both monitors
and then I open the flash project and drag and drop to the second
monitor, but when I full screen the project is only show on the
primary monitor.
Regards.
Javier.

You cannot shadow a session with multiple monitors enabled in Windows Server 2008 R2

Searching through the forums (and according to KB2484290) it appears that there is no solution to this problem. We are rolling out thin clients that are using dual monitors exclusively and we were very surprised to find out that we couldn't shadow
sessions with dual monitors (which to us means that we can't shadow ANY sessions). This now completely changes our approach to managing these devices.
We are running Windows Server 2008 R2 SP1 with Remote Desktop Services installed. The thin clients are running Windows Embedded Standard 7 with the latest updates / RDP client. All steps have been followed to ensure that the apropriate settings and
permissions have been set up to allow access into the session.
We tested by unchecking the RDP setting “use all my monitors for the remote session”, with that setting disabled shadowing worked
Questions:
1. KB2484290 is from Dec 2010 - It's now April 2012, is there a workaround / hotfix for this issue that will allow us to shadow sessions using the native Microsoft tools?
2. Are there any recommended alternatives (software)? Free/Paid - doesn't matter we just need something that will work. I'm sure there are a few options out there but I am looking for suggestions for what people have used in the past that worked
best for them to help us narrow down the choices.

Hi,
In my experience, so far, the workaround is Remote Assistance, Remote Assistance supports multiple monitors, and is the presently recommended solution if you need this functionality. Remote Assistance is a Windows Server Feature that must be explicitly installed
on Windows Server 2008 R2; it is already installed with the client versions of the operating system.
More information:
Remote Assistance Overview
http://technet.microsoft.com/en-us/library/cc753881.aspx
Remote Assistance and Resulting Internet Communication in Windows Server 2008
http://technet.microsoft.com/en-us/library/cc770456(v=ws.10).aspx
As far as I know, there are some third-party tools can be used as the solution, such as Teamviewer, ISL Online, etc.
Please Note: The third-party products discussed here are manufactured by companies that are independent of Microsoft. We make no warranty, implied or otherwise, regarding
these products' performance or reliability.
Regards,
Dollar Wang
Forum Support
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Technology changes life……

Is Screen Sharing with multiple users possible?

I am trying to discuss some documents with multiple users. It works very well with just two users sharing the screen of one of them, so I was wondering if there was a way to have a third user participating. If iChat does not allow this, does anyone know a different software solution?
Thanks
Christian

Hi,
No. (Not in iChat)
And I have not heard of anything either.
10:39 PM Friday; October 22, 2010
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

How do you center dialogs with multiple monitors. code, best practices

My existing code will take the pixel size of the java app, and using the size of the dialog, it will center dialogs perfectly in the center of the application. This is great for single monitors, but when multiple monitors are introduced it is a problem. With dual monitor, the dialog is split in half between the two monitors.
I should be able to determine which pixel/frame initiated the user's action; and then i am hoping to get some code or direction on:
1. how to determine which monitor the user initiated the action on (knowing the px or frame location, how would i do this)
2. how to center dialog on that monitor
if possible, it would be appreciated if you can provide some code; i cant find anything on determing pixel size of monitors and this seems to be a little bit of a project to do from scratch. open source, 3rd party, insight, guidance, all is appreciated. thanks !

This code may help:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class OptionPaneDemo {
    ActionListener al = new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            Component comp = (Component) evt.getSource();
            JFrame f = (JFrame) SwingUtilities.windowForComponent(comp);
            showDialogInUpperRightCorner(f);
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable(){
            public void run() {
                new OptionPaneDemo().go();
    void go() {
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        for(GraphicsDevice gd: ge.getScreenDevices()) {
            JButton showDialogButton = new JButton("show the dialog");
            showDialogButton.addActionListener(al);
            JFrame f = new JFrame(gd.getDefaultConfiguration());
            f.getContentPane().add(showDialogButton, BorderLayout.NORTH);
            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            f.pack();
            centerWindow(f);
            f.setVisible(true);
    void centerWindow(Window w) {
        Rectangle windowBounds = w.getBounds();
        GraphicsConfiguration gc = w.getGraphicsConfiguration();
        Rectangle screenBounds = gc.getBounds();
        int x = screenBounds.x + (screenBounds.width - windowBounds.width)/2;
        int y = screenBounds.y + (screenBounds.height - windowBounds.height)/2;
        w.setLocation(x, y);
    void showDialogInUpperRightCorner(JFrame f) {
        JOptionPane pane = new JOptionPane("Hello, world!");
        JDialog dialog = pane.createDialog(f, "title");
        Rectangle dialogBounds = dialog.getBounds();
        GraphicsConfiguration gc = dialog.getGraphicsConfiguration();
        Rectangle screenBounds = gc.getBounds();
        //int x = screenBounds.x + screenBounds.width - dialogBounds.width;
        //int y = screenBounds.y == 0 ? 1 : screenBounds.y;
        int x = screenBounds.x;
        int y = screenBounds.y + screenBounds.height - dialogBounds.height-1;
        System.out.format("(%d,%d)%n", x, y);
        dialog.setLocation(x, y);
        dialog.setVisible(true);
}

Full Screen Problem With Dual Monitor Viewing

I have a 64 Bit system, Chrome browser and with flash player built in. I am attempting to view videos on a 2nd monitor while working on the primary monitor. I have tried this on various sites, TNT.tv, USANetworks.com, etc... I select full screen viewing. A message is displayed to exit full screen press escape. However, when I attempt to do anything else automatically exit full screen on the second monitor. This should not be an issue and with the way most people view video online, they are doing so on a 2nd monitor or TV. I have done a google search and it is a common problem, but there is no solution that seems to work.

I have just posted the same question - missed yours.
Adobe could you take a look into this - I think solving this problem can't be that hard.
jef

Full screen preview with one monitor

Hello,
I'm using Premiere Pro CS5 on a Mac with a single monitor. I would like to see the full screen preview on this monitor, hiding all GUI elements.
By reading around, I could only find the suggestion of selecting the Preview pane and press the ~ or ` key. Unfortunatly, it seems that this shortcut only triggers the Maximize or Return to the Original Size commands. GUI elements remain in the display.
Is there some preference to select somewhere?
Thank you, Paolo

That's as close as you can get with Premiere; it doesn't do a single-monitor fullscreen the way FCP does.
Make a feature request if this is something you'd like to see: Adobe Feature Request/Bug Report Form

Bizarre crashing with Multiple Monitors in Win 7 64-bit.

I am running InDesign CS 4.0.2 ME (4.0.4 has yet to be released) with 4 monitors running on 2 nvidia cards. I am having the most bizarre behaviour. After rebooting the computer, ID crashes on starting. The only way to get it to work is to first disable the second card, then it loads fine, the reenable the second card. ID will open and close without any problem until I reboot again!
This is really strange.
I used to have a similar problem on Vista where if ID was maximised on start it wouldn't load so I had to make the preference be that it didn't open full screen (1920 x 1200) and then it would work.
It seems that Adobe would prefer us all to work on XP with a 17" monitor.
On a similar front, in 64-bit Windows 7, the ID icon doesn't show. It's just a blank icon. The book icon works, as does, .idml etc., but an .indd simply doesn't appear in purple. This is unique to 64-bit Win 7, because under 32-bit it works fine.
Most bizarre and quite irritating!

All I can tell you is that I don't see this issue with the standard version of InDesign.
It sounds to me like a video card/driver issue and that's where I'd be concentrating my efforts.
Bob

Mavericks with Multiple Monitors?

I keep my tool pallets arranged on my second monitor. Ever since I upgraded to Mavericks Photoshop, InDesign and Illustrator all lost my workspace settings whenever the monitors go to sleep. I can restore everything by chooseing Reset Workspace, but this is getting real old. Usually after waking up the monitors, the palettes either all show up in my main monitor or almost completely off screen on my second monitor?
Am I the only one having this problem?
Only other thing I have noticed wierd in CC since moving to Mavericks several weeks ago is that Photoshop sometimes switches to the Color-Wheel cursor (but not spinning) at times regardless of which tool is selected - eventually it will switch back, but have not identified what causes it to restore itself.

Fwiw, I think this is expected behavior. Aperture is set to use multiple monitors in the same (OS determined) "Space". In Mountain Lion, you could not show two spaces at the same time. In Mavericks you can assign a monitor to a space (this is the default). But if you want an app to use both monitors, you have to turn off this feature.
As I see it (actually, I don't -- I haven't upgraded to the big wave), the hierarchy was:
Space(s)
Monitors (all in same Space at any given time)
Apps
and now it is (by default):
Monitor(s)
Space(s) (one per monitor)
Apps.
What you are asking is to have each Monitor display a Space, and have an app (Aperture) run in two Spaces at the same time. That might be asking too much.

Screen flicker with multiple monitors

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