slughead
macrumors 68040
Setup
Mac Pro 5,1
GTX 980 (not flashed)
ROG SWIFT PG348Q
OS X Sierra
Latest Nvidia drivers
The problem:
When plugged into the Displayport on the monitor, everything works as expected, it goes up to the expected resolution of 3440x1440 and I think it goes up to the expected 100hz. However, if I plug the GTX980 into the HDMI port (I believe it's HDMI 1.4), it is limited to 1080p when it is supposed to be able to go to 3440x1440 @ 50hz. It not only does not show higher resolutions in Displays preference pane but also attempts to force the resolution have failed, as below
What I've tried:
- My PC laptop runs it at full res over HDMI
- My Mac Laptop (macbook pro) runs at full res over HDMI
- I used a displayport -> HDMI adapter rated at HDMI 1.4 as well as the built-in HDMI port (neither works)
- Manually entering in the Resolution/pixel frequency/porches and such using SwitchResolutionX utility and info gathered from exporting the EDID output on the PC laptop (Oh yes, I went there)
- Manually entering the EDID data into the OS plist on my monitor (which I believe is what SwitchResolutionX does anyway)
- Resetting monitor settings to default
- Holding "option" while clicking the "scaled" radio button in Displays panel
Does anyone have any other ideas?
Mac Pro 5,1
GTX 980 (not flashed)
ROG SWIFT PG348Q
OS X Sierra
Latest Nvidia drivers
The problem:
When plugged into the Displayport on the monitor, everything works as expected, it goes up to the expected resolution of 3440x1440 and I think it goes up to the expected 100hz. However, if I plug the GTX980 into the HDMI port (I believe it's HDMI 1.4), it is limited to 1080p when it is supposed to be able to go to 3440x1440 @ 50hz. It not only does not show higher resolutions in Displays preference pane but also attempts to force the resolution have failed, as below
What I've tried:
- My PC laptop runs it at full res over HDMI
- My Mac Laptop (macbook pro) runs at full res over HDMI
- I used a displayport -> HDMI adapter rated at HDMI 1.4 as well as the built-in HDMI port (neither works)
- Manually entering in the Resolution/pixel frequency/porches and such using SwitchResolutionX utility and info gathered from exporting the EDID output on the PC laptop (Oh yes, I went there)
- Manually entering the EDID data into the OS plist on my monitor (which I believe is what SwitchResolutionX does anyway)
- Resetting monitor settings to default
- Holding "option" while clicking the "scaled" radio button in Displays panel
Does anyone have any other ideas?
