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Precision 7770 -> U3014 monitor


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I've always connected my precision laptop to U3014 monitor with mini-dp to DisplayPort cable.
 

The 7770 doesn't have a mini-displayport connection, but has both an HDMI port and USB-C ports.

 

I'm curious -- is the HDMI connection usable / advisable. A long, long, long time ago I thought I remember reading about the hdmi running off the intel gpu not the nvidia, or something like that, but that was long ago... 

 

Also it looks like the U3014 is limited in resolution to 1080p with a direct hdmi connection -- would an hdmi to dvi-d cable work in this situation to drive the U3014 from the nvidia gpu at 2560 x 1600?

 

Or is USB-C to DP cable the (only) way to go?

 

Since the HDMI port is there on the 7770, I'm just curious if it's usable in my case and if it is worth anything to free up an additional USB-C port, and if an HDMI->DVI adapter cable would work better/worse/the same as the USB-C->DP adapter cable.

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USB-C -> DP is the ideal setup, I'd say.  (USB-C can carry a DisplayPort signal.)

 

HDMI should be able to work off of either the iGPU or dGPU in this system.  In previous systems, the HDMI port was physically located right on the dGPU, but in this one it is actually on the motherboard.  That said, I haven't tried it yet to confirm...

Dell Precision 7770 (personal) • Dell Precision 7560 (work) • Full specs in spoiler block below
Info posts (Dell) — Dell Precision key postsDell driver RSS feeds • Dell Fan Management — override fan behavior
Info posts (Windows) — Turbo boost toggle • The problem with Windows 11 • About Windows 10 LTSC

Spoiler

Dell Precision 7770 (personal)

  • Intel Core i9-12950HX ("Alder Lake"), 8P+8E
    • 8× P cores ("Golden Cove"): 2.3 GHz base, 5.0 GHz turbo, hyperthreading
    • 8× E cores ("Gracemont"): 1.7 GHz base, 3.6 GHz turbo
  • 128GB DDR5-3600 (CAMM)
  • NVIDIA GeForce RTX 3080 Ti 16GB (DGFF)
  • Storage:
    • 2TB system drive: Samsung 980 Pro, PCIe4
    • 24TB additional storage: 3× Sabrent Rocket 4 Plus 8TB, PCIe4 (Storage Spaces)
  • Windows 10 (Enterprise LTSC 2021)
  • 17.3" 3940×2160 display
  • Intel Wi-Fi AX211 (Wi-Fi 6E + Bluetooth)
  • 93Wh battery
  • IR webcam
  • Fingerprint reader

 

Dell Precision 7560 (work)

  • Intel Xeon W-11955M ("Tiger Lake")
    • 8×2.6 GHz base, 5.0 GHz turbo, hyperthreading ("Willow Cove")
  • 64GB DDR4-3200 ECC
  • NVIDIA RTX A2000 4GB
  • Storage:
    • 512GB system drive (Micron 2300)
    • 4TB additional storage (Sabrent Rocket Q4)
  • Windows 10 (Enterprise LTSC 2021)
  • 15.6" 3940×2160 display
  • Intel Wi-Fi AX210 (Wi-Fi 6E + Bluetooth)
  • 95Wh battery
  • IR webcam
  • Fingerprint reader

 

Previous

  • Dell Precision 7530, 7510, M4800, M6700
  • Dell Latitude E6520
  • Dell Inspiron 1720, 5150
  • Dell Latitude CPi
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On 9/23/2022 at 4:39 PM, Light said:

I've always connected my precision laptop to U3014 monitor with mini-dp to DisplayPort cable.
 

The 7770 doesn't have a mini-displayport connection, but has both an HDMI port and USB-C ports.

 

I'm curious -- is the HDMI connection usable / advisable. A long, long, long time ago I thought I remember reading about the hdmi running off the intel gpu not the nvidia, or something like that, but that was long ago... 

 

Also it looks like the U3014 is limited in resolution to 1080p with a direct hdmi connection -- would an hdmi to dvi-d cable work in this situation to drive the U3014 from the nvidia gpu at 2560 x 1600?

 

Or is USB-C to DP cable the (only) way to go?

 

Since the HDMI port is there on the 7770, I'm just curious if it's usable in my case and if it is worth anything to free up an additional USB-C port, and if an HDMI->DVI adapter cable would work better/worse/the same as the USB-C->DP adapter cable.

Err, I'm confused... I've been using a U3014 for years with various Precision M6x00 machines via HDMI at 2560x1600 with no issues (using the nVidia card only; I turned off the Intel GPU).  I briefly tried it with my 7770 while waiting for a new monitor to show up and it worked fine too.  I tried using it via DP-to-mini-DP with my older Precision machines and hated it (the video looked awful compared to HDMI, no idea why).

 

I'm now using an U3023E USB-C hub monitor and the off-axis picture quality stinks, I like the U3014 better -- better off-axis viewing, better soundbar options, better matte screen finish.  I like all the connectivity of the U3023 tho, so I'm keeping them both...

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Thank you!

 

It works via HDMI.

 

A U3014 30" will display its native 2560x1600 resolution through the HDMI - HDMI cable.

 

An older U3011 30" monitor with native resolution of 2560x1600 will only allow setting resolution to 1920x1200 via the same HDMI - HDMI cable on the 7770 Display Properties.

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