Is possible GX60 with 2 monitors at 2560x1600?

I want to connect 2 monitors of 2560x1600 resolution in my GX60. One is easy with the mini displayport but i have a lot of problems with the second one. Is possible to connect by HDMI of VGA? Maybe with a signal converter or any kind of adaptator?
Any idea? Any advice of what monitors should i buy?
Thank you

The largest display output possible with HDMI or VGA I think is 1920x1080 with the GE/GT/GX series laptops.
I could be wrong, but I'm pretty certain this has been covered previously.
I'll be honest, I didn't realize that the GX laptops come with a mini displayport on them. That's pretty nice, I suppose.
HDMI doesn't support higher resolutions at anything more than 23 FPS I believe (atleast, the HDMI included with the laptop).
VGA might handle a higher resolution, but the refresh rate will obviously be limited I believe.

Similar Messages

Connection MSI GTX 980 Gaming 4G with 2560x1440 monitor

Hi.
I'm going to buy WQHD (2560x1440) monitor. How to connect MSI GTX 980 Gaming 4G to use 2560x1440 resolution? The specification for card states:
DVI Connectors
1 (Dual-link DVI-I)
Max Resolution: 2048x1536 @60 Hz.
HDMI Connectors
1 (version 1.4a/2.0)
Max Resolution: 4096x2160 @24 Hz (1.4a), 3840x2160 @60 Hz (2.0)
DisplayPort
3 (version 1.2)
Max Resolution: 4096x2160 @60 Hz
I prefer connection over DVI but according to above spec I'm affraid if will be impossible...
I've heard the picture quality over HDMI/DisplayPort is worse then over DVI - is it right?

Quote from: CSIG1001 on 23-October-14, 07:34:58
This cannot be possible Dual Link DVI is capable up to 2560x1600
I just purchased 2x 980s gaming and all the current cards only support DVI up to 1 (Dual-link DVI-I) Max Resolution: 2048x1536 @60 Hz.
This is incorrect unless MSI HQ R&D did not test 2560x1440 and 2560x1600 res or they put crappy components inside this card to not allow it. I went back and fourth with owners on newegg with this card one owner did verify that it does work . For me I own a Monitor that only uses DVI dual link at 2560x1440. This will be a deal breaker for me if the cards do not work with my monitor or the video cards do not function correctly.
This does not make any sense what so ever for a manufacture to implement this standard as the majority of the population isnt even on 2560x1440 or 4k. So i am pretty upset about how tech support fails to acknowledge the reasoning behind this new DVI standard . Go look at the 760-780 series all say max res 2560x1600.
So my question to everyone out there who owns this card am i screwed or should i just use my dual link cable to run 2560x1440 even though it states 2048x1536 max res. Someone that i know online says it works so whats the deal?
FYI this video card does support a max res of 2560x1600 over DVI
Tech support for MSI and Sales department were not trained correctly to let the customer understand that Max Resolution on the website for DVI 2048x1536 is for using the analog VGA adapter
Hope everyone now understands! Because this took me 4 hours of my time to figure out on my own with the help of Newegg tech support and verified owners!

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.

Strange issue with external monitor, only working when external speakers plugged in (using Thunderbolt to VGA adaptor)

Hey – I am having a very strange issue with my external monitor; where it only works if my external speakers are plugged in and connected.
I am using a late 2011 Macbook pro, running Mavericks 10.9.4, along with an MBox 2 (USB Audio Interface), and two powered speakers (KRK Rokit 5). This setup has had no issues. I have just acquired an external monitor (Benq T2200HD), which I am using with a thunderbolt to VGA adaptor (a cheap Chinese knockoff adaptor).
To start - I plugged the monitor in with the thunderbolt adaptor, and it powers up and works fine. However, there is a nasty buzz coming from the speakers. I did some research and it looks like a simple ground loop issue. I did a bit of troubleshooting, and this is where things get weird.
What I found is - If I unplug the MBox, the monitor loses signal from the computer (displaying ‘No Signal Detected!’). Further, if I keep the MBox plugged in, however unplug both the cables from the MBox to the speakers, the monitor loses signal. It doesn’t matter if the speakers are turned off, however they need to be plugged in (or the monitor loses signal). Weirder still, I can unplug the MBox, however the monitor will work if I plug in the speakers through my macs headphone jack.
Simply put, the monitor only works if there is a direct connection between the computer, the speakers, and the power source. What is going on here? Is the monitor grounding through the computer port, to the speakers (I don’t know how this works, is this possible?). Could it somehow be the cheap VGA adaptor I am using?
Some other information:
- Everything is plugged into the same multi-box for power. I have tried plugging things into separate sources, and the result is the same.
- If I unplug the thunderbolt adaptor, then the speaker noise disappears straight away.
- The ground noise doesn’t appear in my headphones, which are plugged into the MBox.
Any information would be great – am I missing something here, or is this genuinely weird?

Well, I went back into Best Buy to test on 3 other laptops (2 Asus, and their floor model for this Sony). It seems to be doing the same problem so at least I was able to rule out broken hardware issue on my particular laptop.
Here's what I did to test:
Since I couldn't really install Adobe Premiere on their machines, I used the DVIO software (http://www.carr-engineering.com/dvio.htm) and a 5 min clip I captured. I transferred onto their machines, hooked up my Sony D8, and attempted to play the video. It would play for 15 seconds and then stop and jitter with a loud noise (like it does on my laptop). I even tried changing each machine's firewire driver to the legacy one and same results. I pulled a brand new 4 pin to 4 pin firewire cable off their shelf and still the same problem.
I think I've nailed it down to Win7x64 bit Home Edition not playing nice with Firewire driver. Very annoying. I can't find any concrete evidence of this from other users on any of the forums that have my particular problem, but from my own testing, it's all I can conclude.
I have 2 other things I can try:
1. Opening the laptop and looking at the firewire to maybe find appropriate driver (ugh, I don't want to have to open this thing up).
2. Upgrading to Win7x64bit Pro and possibly testing with XP on the new MS Virtual PC (http://www.microsoft.com/windows/virtual-pc/). I can't do it with my Home edition apparantly.
Who needs to view video on an external TV anyways....sheeesh...(scarcasm).
Tim

[SOLVED] Help with dual monitors (second monitor won't wake up)

Hi. I'm trying to set up dual monitors, but I can't seem to get it to work.
I've got an ASUS P8H67-M EVO motherboard, and I'm using the xf86-video-intel driver. I'm using one VGA and one HDMI.
xrandr gives this
xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 32767 x 32767
VGA1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 474mm x 296mm
1680x1050 60.0*+ 74.9
1600x1000 60.0
1280x1024 75.0 72.0 60.0
1440x900 75.0 59.9
1152x864 75.0
1024x768 75.1 70.1 60.0
800x600 72.2 75.0 60.3
640x480 72.8 75.0 66.7 60.0
720x400 70.1
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
HDMI3 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
1920x1080 60.0*+ 50.0 60.0
1920x1080i 50.0 60.1
1680x1050 59.9
1600x900 60.0
1280x1024 75.0 60.0
1280x960 60.0
1152x864 75.0
1280x720 50.0 60.0
1152x720 60.0
1440x576i 50.1
1024x768 75.1 60.0
1440x480i 60.1
832x624 74.6
800x600 75.0 60.3
720x576 50.0
720x480 59.9
640x480 75.0 60.0 59.9
720x400 70.1
DP2 disconnected (normal left inverted right x axis y axis)
DP3 disconnected (normal left inverted right x axis y axis)
So it looks to me like both displays are being detected. The geometry looks such that one display is on top of the other, but I can change that using an xorg.conf.d config file (e.g. https://wiki.archlinux.org/index.php/Mu … xorg.conf). I also tried using arandr.
The real problem is that the display on HDMI3 just isn't "waking up". The power is on, but it just sits there in sleep mode.
Any help would be great. I might just be missing something simple. Thanks.
Edit: I just saw a short list of window managers near the bottom of the Arch Multihead page (https://wiki.archlinux.org/index.php/Mu … _xorg.conf). I don't see openbox on that list. Does that mean I'm SOL if I want to use openbox with multiple monitors? This page seems to imply that it should work fine with openbox http://magnatecha.com/dual-monitors-wit … nd-xrandr/.
Last edited by Pacopag (2013-08-19 18:58:36)

I use XFCE, and when I boot my computer I just run:
xrandr --output DVI-I-1 --auto --output DVI-I-2 --auto --left-of DVI-I-1
I'm assuming if you modify the names appropriately that it'll work too. I have had issues before trying to run dual monitors without taking both outputs off of a single video card (which is what I'm doing now). For example, I had a graphics card with one (VGA) output and a VGA output on my motherboard. But, connecting the graphics card disabled the on-board VGA. So it is possible (I'm not an expert here) that two displays coming off the motherboard may not work for hardware reasons.

Ground Noise Problem Possibly Attributed to Samsung Monitor

I have a Samsung SyncMaster 730b and a 15” Apple Powerbook G4 (1.67 GHz), powered by the standard Apple 65 watt power adapter. I typically connect my Samsung 730b monitor to my Powerbook to use it as a second display connected through a DVI cable. For some reason my power adapter plugged into the Powerbook is turning itself off, which fails to charge my battery and eventually drains the computer to nothing. I am able to get the power adapter to start charging again if I unplug it from the wall and then plug it back in.
I have been troubleshooting the problem for months and have spent a lot of time researching online, including all of the pertinent Apple and Samsung support forums I can find. Apple says that the power adapter shutoff occurs because the AC adapter's over voltage protection feature senses ground noise and turns off the adapter. The company also says that it may not happen if the power adapter is plugged into an uninterruptible power supply (UPS).
I have not tried a UPS yet because it will require a significant purchase and only some users on the support forums have found the UPS to be successful at stopping the power adapter shutoffs. I have reset the PRAM, NVRAM, and PMU that Apple and individual users have suggested and I continue to have the problem. The problem persists no matter what outlets, surge protector, or combination of the two is used for the Powerbook and/or monitor. I normally have additional peripherals connected to my computer, but the problem has persisted without any devices (other than the Samsung monitor) plugged into my computer.
I have had the problem at my current apartment and my previous apartment. I have never had the problem in any other location I have used my laptop, but I have also never used my Samsung monitor in any location other than my current and past apartments. I have connected the laptop to a Westinghouse LCD television for more than a week and used that as a second monitor (to troubleshoot the problem). I have not had a problem with my power adapter while using the Westinghouse as a second monitor. I have only had the problem when my Samsung is connected to my Powerbook. The problem persists whether or not I use a VGA cable with DVI adapter or a straight DVI cable from the monitor to the laptop. The problem does not occur if the monitor is not plugged in to my laptop, regardless of whether or not it is powered on (e.g. my monitor turned on and searching for a signal that isn’t there does not cause the Powerbook to have a problem). The problem also persists whether I set the external monitor to a 60 hz refresh rate or a 75 hz refresh rate.
*To recap, the problem is not solved by:*
-Using a different monitor cable
-Using a different power outlet for the computer
-Using a different power outlet for the monitor
-Using a different power outlet for the surge protector
-Using a different surge protector for the computer
-Using a different surge protector for the monitor
-Bypassing the surge protector and plugging the computer straight into the wall
-Resetting the computer’s PRAM
-Resetting the computer’s NVRAM
-Resetting the computer’s Power Management Unit (PMU)
-Using a different refresh rate on the Samsung monitor
-Unplugging all peripherals from the computer except for the Samsung monitor
-Using the computer and monitor in a completely different apartment (on the other side of town)
*The problem is solved by:*
-Using a non-Samsung LCD TV as a second monitor
-Not using an external monitor
My troubleshooting leads me to believe that the Samsung monitor is causing a problem through its connection to the computer. I do not believe it is a problem with the monitor’s connection to the power outlets in the apartment because the problem does not occur when the monitor is powered on and unconnected to the computer. I therefore do not believe plugging the monitor and/or computer into a UPS will solve the problem.
I do not believe it is possible for the monitor to be sending electrical noise out of itself and into the apartment’s power outlets, but if it is, I have one additional troubleshooting configuration I would try.
I understand this is an elaborate description of my situation, but I hope it is helpful in showing the isolation of variables and troubleshooting actions I have followed. Have any other users encountered a similar problem? What do you believe the problem to be and what suggestions do you have for me to continue using my Samsung monitor?
Thanks in advance for your assistance.

Hey Lou and eww,
Thanks for your quick replies.
The problem started about a year ago in my previous apartment. I do not have any AC line control devices, but I don’t think my current neighbor’s connections are relevant because I had the problem in my previous apartment. My previous apartment was actually a room in a house and that is where my problem first appeared. I had the same setup there as I do in my current apartment, so I counted that as my “second location.” Eww, Are you recommending I try another?
I don’t think I mentioned this in the original post, but my problem doesn’t happen at consistent time or time intervals. It happened about five minutes ago, but that was the first time it happened since I posted on the forum about 14 hours ago. Sometimes the adapter goes off twice in an hour, sometimes it can be several hours or days before it happens.
I am using the grounded three prong cord that attaches to the white apple power block.
If I were to get a new power adapter, I’m thinking the igo juice70 or igo everywhere85. If I were to get a UPS, I’m thinking the APC UPS BE550G or BE550R. Please comment if anyone knows any specifics about these products that probably won’t help my situation. Like I said originally, I am trying to avoid purchases unless I am pretty confident they will solve my problems. I will try to borrow a friend’s power adapter soon and see if that is less sensitive.
Any additional comments or suggestions by anyone are always appreciated! Thanks!

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);
}

How to synchronise with two monitors

Dear NI,
I have an application, for that i want to show the two different screens with different mesurement values. i am using CRT and LCD screens. in CRT screens i am running main vi in this screens i have configuration, testsettings, trendmill,and operator name etc. are displayed, i need the seperate screens for to show measurement values to another screen. how , is it possible to do this? can able to two diferent exe with diferent monitors? and how to synchronise two monitors for my application.
Balaji DP
Application Engineer,
Gantner Instruments.
Labview 8.5 Version
Regards,
Balaji DP

Hi Balaji,
So if you have an extended desktop across two monitors then I would say you had two options.
1. Within one VI you could simple design the front panel in such a way that it extends across both screens with the relevant information in the right screen. The fact that there are two monitors present is transparent to the applications.
2. With two VIs there is a property for front panels to choose which monitor they are displayed on. This is available by wiring a VI reference to a property node and selecting front panel window >> monitor. You then enter an id for the monitor you want it to be displayed on, this is a numeric e.g. your primary monitor will be zero. You can see the property node help page here.
I hope this is the information you are after.
Regards,
James Mc
========
CLA and cRIO Fanatic
wiresmithtech.com/blog

Color with 3 monitors because of MXO...

Is it possible to fake three monitors with Apple Color? I've read that multiple video cards causes color not fo function.
I just got an MXO and want to be able to use the 2 monitor setup in color + the MXO. I know you can't use another video card, but can i get a DualHead2Go from Matrox and fake it?

I have a MacBook Pro with a 23" cinema Display. I got the Matrox DualHead2Go in order to add my flat screen Sony 15" (SDM-S73). I have not been able to successfully get all three displays to work. At best I got output on the MBPro LCD screen and the cinema display but the Sony either says out of range or resolution not supported and stays black.... Anybody out there manage to successfully connect a 3rd screen to an MBPro and 23" Cinema Display... thought I'd ask before returning the Matrox box.

Is it possible to attach 2 monitors or TVs on a MacbookAir?

Hi all,
     Could you help me please?
     Is it possible to attach 2 monitors or TVs on a Macbook using HDMI/DVI-D Cables and split the macbook's image on these devices?
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JasonFear wrote:
I've got a Matrox Dual Head 2 Go hooked up to double 24" monitors on my 13" MBA as we speak (over MiniDisplay Port). So it'll absolutely work. Thunderbolt will allow you to daisy chain devices over a single outbound wire, whereas with the Matrox setup you have a rather large box that interfaces between the displays and the machine. That's what is doing the heavy lifting and allows two (and even three) external monitors over a single MiniDisplay Port.
Very glad to hear this. Is this a Matrox Dual Head 2 Go DP Edition? I have the Digital Edition (which has VGA in and DVIx2 out) and with my 2006 MBP, I was able to use the DVI-VGA adapter, and get two 19" external monitors at 1280x1024 each (total rez 2560x1024) to work just fine.
I just upgraded to the new 13" MBA and got a MiniDisplay Port -> VGA adapter, hoping it would just work. But it doesn't. The resolutions that are in the drop-down are for the most part all single-screen resolutions. If I choose 2048x768, both screens fire up, but 1024x768 looks fairly horrible and I'd rather do just the single screen at 1280x1024. But I sure am missing two screens right now
Thank for your help.

Howto set monitor resolution when I start with the monitor turned of ?

Hello,
I use the onboard Intel HD 4000 to display on my Dell monitor which works out of the box with native 2560x1600 resolution as long as I boot with the monitor turned on (both console and X11).
The problem is that sometimes I don't boot with the monitor being powered on and just need the monitor later.
I found in aur the program read-edid which gives me the needed info in case my monitor isn't powered at boot.
How could I use that information, for the console (I guess it's relared to grub2) and for X11 ?
Thank you very much !!!

This is related to KMS.
Take a look in the wiki: Kernel Mode Setting: Forcing modes and EDID and Intel Graphics: KMS (Kernel Mode Setting)

Possible to add a monitor to extend the desktop (not mirror)?

Do this on all my desktop Macs for reducing clutter (holding palettes).
iMac G5 20". Added a 17" VGA monitor via adapter, but only get them to mirror with same display settings for each. Want a continuation of the desktop.
Is it possible to have another monitor with the iMac for this purpose?

I am lost and need some assistance. I tried to install an anime program on our iMac and found we did not have enough available disc space. I then moved a bunch of software off the hard drive and onto the Applications and personal folders. However, I think I may have moved critical start up and operational files out of touch with the machine. I froze on the desktop with a spinning pin wheel. I unplugged the computer. When I plugged back in and tried starting it up I got to a black screen with grey and white alarms and alerts with code. I could not move from this spot. Then it sounded like an internal drive was starting to spin into orbit. I shut the computer off and I'm afraid I have ruined my best teaching aid. H-E-L-P!!!!!!

How Can I use 2 Macs and a PC with two monitors

This is for my office at work.
I currently am using dual monitors and sharing those between a G4 and a PC. I'm using a Belkin switch box for the two computers. I'm adding a Mac Pro. I'm thinking I might use the Mac Pro by itself at another workstation but I would like to use it at my current workstation along with my other machines.
I'm getting a new 23" monitor with the Mac Pro. I want to use it as my main monitor, then use one of my other monitors as a second screen. Is it possible to use two monitors with 3 computers? I would have to use the new keyboard and mouse (both will be standard, not wireless) on both of the macs and use the PC keyboard and mouse.
Thank You
Jim

I would use the new Mac Pro as the main workstation and attach your mouse, keyboard and your new monitor to it.
Then use the Belkin Switch Box to connect 1 monitor to the G4 and PC.
Download and configure 'Synergy' (http://synergy2.sourceforge.net/) on the new Mac Pro (as the primary) and the G4 and PC (as secondary) - This will allow you to deal with only one keyboard and mouse.
I'm with Malcolm, I would download and install VMware Fusion. VM the PC w/ Converter (http://www.vmware.com/products/converter/) and only deal with the new Mac Pro and G4. With the new Mac Pro, you can fire up the PC VM with 2 cores and have it set to a secondary space. You will not notice the difference.

Monitor an Apache service with Solution Monitoring

Dear all,
We are using Solution Monitoring and the Service Level Reporting and now I'd like to monitor an Apache Service to see its uptime.
I tried to create a GRMG scenario for this, however I noticed that a GRMG scenario always requires a port number in the URL.
Does anybody of you know if it is possible:
     1) to monitor an Apache Service with Solution Monitoring (TA DSWP)
     2) to make it part of the Service Level reporting
     3) any other technology to make the uptime of an Apache Service part of the Service Level Reporting
Thanks a lot in advance for your help!
It is highly appreciated...
Best regards,
Roel

Hello Joe,
If u do not want to import any Structure or BOR- Object, u can follow below steps :
1. Create ur data model by adding the properties manually in SAP GW service builder with correct Edm    types.Doing this would be pain in my opinion ( sometimes we are forced to do this but no other option    doing this way )
   Create associations & navigation needed.
2. U can generate run-time objects.
3. Go to appropriate classes and implement methods with ur Business Logic.
4. Register ur service & consume.
U can also import RFC to create data model and create mapping as per required by implementing correct method as well.
once u do this generate objects and register service and consume it.
Check this out for ur info :
Detailed step by step procedure for Creating Gateway Service with all the CRUD Operations and testing them in Service Explorer Part1
Regards,
Ashwin

[SOLVED] Modesetting with external monitor broken (intel)

After recent updates, modesetting during boot no longer works if an external (vga) monitor is plugged in.
Once it gets to modesetting, both screens go black and I can't tell what happens after that (Might hang, might boot fine I just can't see it…) The external vga screen is black (with very occasional horizontal line of noise), but remains on (It doesn't go to sleep, which it usually does if not receiving a signal).
If the monitor is unplugged during boot then plugged in once the login prompt is reached, modesetting works and running X multihead with xrandr seems to work normally. (workaround until the issue is solved)
Changing from Early KMS start to Late KMS start means the black screen appears later, but it still appears.
Booting with nomodeset works with the monitor plugged in, but means X fails to start with an error message about not finding any screens.
The laptop is an old macbook, with integrated intel graphics card:
Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
Last edited by Thrall (2013-03-19 11:29:04)

Ok, I'm trying to collect information for a bug report, so if people could confirm or correct what I have so far and add any additional relevant information, that'd be very helpful.
The fact that running the linux-lts kernel fixes the issue suggests that the problem almost certainly lies with the kernel.
Comparing the date of my first post with /var/log/pacman.log, I believe the upgrade that first caused the issue to appear was this:
upgraded linux (3.7.3-1 -> 3.7.4-1)
(There is a very slim possibility that I managed to upgrade to 3.7.4 without actually rebooting into the previous kernel, in which case the issue could have been present in an earlier version, but I wouldn't have encountered it.)
So far, the only graphics card affected appears to integrated intel chips:
Intel Corporation Mobile 945GM/GMS(/GME), 943/940GML Express Integrated Graphics Controller (rev 03)
Has anyone observed this issue with a different graphics card? (check the output from entering "lspci" in a terminal if you're not sure how to find out)
Finally, Wittfella found reinstalling from scratch fixed the issue. If someone can come up with a reasonable explanation as to *why* this fixed it (and ideally narrow it down to changes that can be made without reinstalling from scratch if at all possible), then it's possible that it's not an actual bug, so much as a poorly documented change that causes problems upgrading but is otherwise ok afterwards.

Is possible GX60 with 2 monitors at 2560x1600?

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