15" MacBook Pro, Early 2011
Dell U2410 REV 5
I've owned the U2410 for about 2 weeks now and I still can not figure out what is up with connection issues to the MacBook Pro.
Apple's official Mini DisplayPort-to-DVI adapter & Dell's included DVI cable:
- The monitor never enters Power Saver mode. Instead, the picture disappears but the backlight remains on
- The monitor successfully displays in RGB mode
Mini DisplayPort-to-DisplayPort cable:
- The monitor believes the signal is an HDTV and refuses to be set to RGB mode. It will only display in YPbPr
- The monitor, however, successfully enters Power Saver mode
I've tried shutting off the "Put hard disks to sleep" option; I've tried disabling "Automatic graphics switching"...Nothing seems to work.
I believe the problem has to do with the Thunderbolt/DisplayPort. I do not have these issues on my older white MacBook using a MiniDVI-to-DVI adapter.
Is Dell aware of these issues? Working on them? This is a common problem for most users with a Thunderbolt port and attempting to use the U2410. But there remains a lot of confusion as to what the problem is and whether or not steps are being taken to alleviate it?
Dell only validates the standard Mini-DP to DP adapter on Windows PCs. We do not test the apple mini-DP to DVI adapter nor do we test Dell monitors with apple platforms. You should check the apple Discussions Forum for help from other apple users with our products.
Well that's ridiculous. You would test the literally thousands of different PC configurations but not the handful of models Apple puts out annually? Makes absolutely no sense. Especially considering the U2410 and other high-end IPS monitors are popular among the professional sectors, whom almost exclusively have used Apple platforms for decades.
is the HDMI input for the U2410 designed to accept only HDTV input signal?
* No, When I take a Dell Laptop which has a video card with HDMI out and plug a standard HDMI to HDMI cable into it and the U2410 HDMI in, it all works.
Thanks. Since the signal outputted by the video card is the same as DVI, should I conclude that the HDMI port on my monitor is not functioning? The monitor gives the message 'no HDMI cable attached'. And it is.
Maybe, but I doubt it. Is there a Windows PC around to test the monitor DVI port?
no, unfortunately, I don't have any access to windows machines at all-
though I suppose I could install it on my mac.
Kinda defeats the purpose though...
so I changed the cable, and now the signal is getting through-
However, another problem-
I can only get an approximation of good color in yPbPr- and it's not good colour at all-
However, RGB produces wildly mad colour.
Seems the HDMi port expects to receive tv signals...
Next step is to get a Mini DP to DP adapter, and see if that works...