Gemini44 Posted May 8, 2020 Share Posted May 8, 2020 I have same Dell Optiplex 3070 micro as lucahappy here. The display port works as it should, but when it is on the HDMI port, the screen turns off on the login screen. When I unplug and plug in the HDMI cable, the screen comes again. I am sending debug dump files in the attachment. Thank you so much. hi @lucahappy you're right. When connect 2 USB 3.0 ssd and hdd at the same time, first plugged ssd disconnect and reconnect, but finally mounts 2 disk my usb config. I dont know why? debug_5204.zip Link to comment Share on other sites More sharing options...
lucahappy Posted May 8, 2020 Share Posted May 8, 2020 Your 3070 is the same? i can't see your signature.... Anyway, backup your efi and config.plist and use my in attached file. Let me know if this help you EFI.zip config.plist.zip Link to comment Share on other sites More sharing options...
Gemini44 Posted May 8, 2020 Author Share Posted May 8, 2020 Sorry I forgot to add my signature, i added. I brought the device at home and connected it to a samsung TV and viewsonic projector with a hdmi cable. The image that existed while booting but did not appear when on the login screen. Even though I removed the cable and replugged it, but it is not works. No problem with windows but i couldn't get it on mac. I will try the files you sent and share the results. Thanks. Link to comment Share on other sites More sharing options...
lucahappy Posted May 11, 2020 Share Posted May 11, 2020 @Gemini44 let me know how my Efi and config.plist work for you, thanks Link to comment Share on other sites More sharing options...
Gemini44 Posted May 11, 2020 Author Share Posted May 11, 2020 (edited) @lucahappyDP is working OOB but hdmi is not. @ home samsung tv and projector not work with hdmi just clover boot screen. @ work, hp display off @ the login screen but when i plug out and plug in hdmi cable it is works :(. As a result efi not worked. Same before i used. Edited May 11, 2020 by Gemini44 Added info. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted May 11, 2020 Moderators Share Posted May 11, 2020 Post one IOREg with DP connected, one with HDMI connected and one with both connected (if it works) https://raw.githubusercontent.com/black-dragon74/OSX-Debug/master/IORegistryExplorer.zip Link to comment Share on other sites More sharing options...
Gemini44 Posted May 11, 2020 Author Share Posted May 11, 2020 Me and the optiplex are at home right now :(. I work from home due to corona virus tomorrow. I tried with dp to hdmi cable and hdmi cable in my home on both samsung tv and viewsonic projector a little while ago, and I couldn't get any images. I will post ioregs with hp monitor at work on wednesday. Thank you very much @Jake Lo Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted May 11, 2020 Moderators Share Posted May 11, 2020 @Gemini44 What are the display resolutions at home? (both HDMI?) What is the display resolution at work? (DP?) Link to comment Share on other sites More sharing options...
Gemini44 Posted May 11, 2020 Author Share Posted May 11, 2020 @Jake Lo The maximum resolution of all three monitor/projector is 1920x1080 fhd. The only difference between the three is the workplace monitor HP PC monitor (it has DP input and dvi, i m using dvi port via hdmi to dvi adapter for optiplex). i have Samsung LCD tv and viewsonic projector at home. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted May 11, 2020 Moderators Share Posted May 11, 2020 So you use the DP to DP from your HP monitor? And DVI to HDMI to your home display? I only see 1 DP and 1 HDMI output on the 3070 Link to comment Share on other sites More sharing options...
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