I have had a Dell
Precision M6300 laptop running Windows Vista (came with the computer) for over a year without issue. Although I made no hardware or software changes, a couple of weeks ago, I started having issues with a secondary monitor connected to my Dell
laptop. It goes on for a part of second then goes off for a couple of seconds. The primary display on my laptop (Dell Precision M6300) works fine. The video card is Nvidia Quadro FX1600M. I cannot disengage it since it is integrated into the motherboard.
I have MS Vista for the operating system. I have completely reformatted my hard drive and reinstalled everything and still have the issue. The display works fine with other laptops. I ran a trial version of Ubuntu on the same computer that has the issue and the secondary monitor worked perfectly. Dell
support cannot resolve.
I checked hardware connections with both the docking station and direct from the workstation. I tried connecting an older monitor to the workstation and also a television. The flicker occurred regardless of the monitor used. Secondary monitors all used the VGA port on either the laptop itself or the docking station. I have tried various refresh rates and resolution without success.
I connected another Dell
laptop to the same docking station and the display worked fine. I also tested the secondary monitor on a third Dell
laptop and it worked fine. I have a dual partition and reformatted the hard drive and reinstalled Vista on two partitions. One partition is a barebones Vista installation, the other is with the programs I use installed. I still had the error on both. I removed the Nvidia driver and installed a standard driver and the monitor flicker continued.
When I reported this instance to Dell
and the technician thought it might be a hardware issue. The rep suggested I try booting from a CD with Ubuntu on it to test it. The display worked fine. I installed Ubuntu 12.10 through Window using wubi.exe. The monitors work without issue on Ubuntu. The driver is a propriety Nvidia driver for Ubuntu.
I tried doing a update install this morning on the barebones install. For about two minutes, while Windows was loading, the secondary monitor was working. After Windows completely loaded, the flickering began again. Repair did not seem to detect any issues. I ran the Windows Memory Diagnostics Tool for two passes at the extended test mix with cache on and found no problems.
I contacted Windows Support and got a soluti
on. I thought I would pass it on for future use:
Robert, actually this is a known issue for Dell
computers that second monitor won't work while running on Windows Vista.
Strange. It worked fine for over a year. This just started a couple of weeks ago.
That's how it is. You got it to worked for over a year and for some reason it stop
That's right. Never had a problem before.
And also nVidia has certainly been weak with respect to Vista driver support. It wouldn't surprise me if that's where the issue lies as well.
So what's the fix?
Try going into Task Scheduler and disabling TMM (Microsoft Transient Multi-Monitor Manager).
I see it, but I am not sure how to disable it.
How about when you right click and there's an options to disable it.
It shows up as running on the task status window.
I just looked at my second monitor and it appears to be stable. Will this stay this way or is there something else I need to do?
This is happens when you have a buggy driver for you Video Adapter. This is actually the resolution for this kind of problem since the TMM (Microsoft Transient Multi-Monitor Manager) is the one who control if you are using multiple monitor.
If you have a buggy video adapter driver, TMM should be disabled to get the second display stabilize.
Thanks. I think this is working.