Reconnecting to dock station with new T530 creates random colored pixels.

Anyone with a T530 that uses the OFFICIAL and real dockstation have issues with random green and pink pixels on their external monitors when they reattach?.
My T530 has the Nvidia optimus 5400 and the HD4000 Intel chipset which apparnently go back and forth between eachother using the BIOS to save power. I was getting REALLY pissed of with the the Intel HD4000 constantly adjusting the brigthness on my screen so I disabled it and went to discrete Nvidia graphics instead and to hell with the power savings.
Anyone else seen issues with video anamolies with the docktation? If I disconnect the DVI cable and reconnect, it goes away. Do I have a bad dock or laptop?

I experience this as well with my T510 on two different docking stations.
I've simply put up with it for for a few years. Tweaking some display settings helped slightly mitigate the issue.
However, my new dock is a Mini Dock Plus, with dual outputs, which allows me some additional testing possibilities. I've been able to confirm that it is a specific cable/display that is causing the issue, not a specific port on the laptop. Furthermore, dropping the resolution from 1920x1080 to 1680x1050 caused the dots to dissapear completely.
The odd part is that I can't seem to reproduce the issue with another device connected to the same cable/display.
My remaining troubleshooting steps are:
* swap out the cable with an alternate (my alternate DVI cable has ferrite cores on each end).
* If this resolves the issue, I'll add my KVM back in the mix, but not use the apparently bad KVM DVI cables. If it doesn't, then I might have to ditch the KVM, and use input switching on my monitor :/
My specs (but to be honest, my googling has turned up similar issues with older thinkpads and ATI graphics, so I don't think it is exactly dependant on the laptop):
* T510
* Nvidia NVS 3100M (with 'nvidia' driver).
* Mini Dock & Mini Dock Plus w/ USB3.0
* Fedora 19

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