T520 DisplayPort does not recognize the HD4K monitor
T420 race that 6.7 RHEL is unable to see a P2715Q HD4K Dell monitor DisplayPort connection. I have no problem connecting to monitors 1080 p Dell P2414H to work, but not this 4K monitor at home. Further research and discussions with colleagues suggest that DisplayPort T420 would be v1.1 and not 1.2, that could be the issue. However, I was unable to find what is the DisplayPort specification in the T420. Could be my problem? If so, is it a material restriction or is a software/firmware possible?
Peter
Well, I managed to do work! Put it down to user error. I finally found a Guide of the user here (http://cdn.cnetcontent.com/a6/3a/a63a60d9-e04e-4eee-bba0-58e8fcd4371f.pdf) and realized I had been connecting my DP cable into the socket of DP output! (The DP entry had been occupied by a DP - CDM cable used by the MacBook Air my daughter!) Make the right connection and it works beautifully :-)
Peter
Tags: Lenovo Products
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