who here has triple monitors working on Mojave?

[starchild2]

Has anyone achieved this?

 

[zakklol]

Yes, I do. Two 1080p dell monitors and one 1440p ultra wide LG.

 

[dfritchie]

I have 4k sceptre on DP, 1080p HP on DVI, 1080P LG TV on HDMI, all running off my gigabyte RX 580.

 

[studiologic]

I have 4k sceptre on DP, 1080p HP on DVI, 1080P LG TV on HDMI, all running off my gigabyte RX 580.

hi, help me please, I have the same card, but when connect all monitors I have black screen's on all. only DP work

 

[dfritchie]

Are you using lilu + whatevergreen? That's all I use and everything works, even audio on HDMI and DP.

 

[studiologic]

Are you using lilu + whatevergreen? That's all I use and everything works, even audio on HDMI and DP.

yes, I using lilu + whatevergreen, but not work multi displays .!!

 

[dfritchie]

I really don't know then, it just works for me.

 

[MacPack]

Make sure CSM is disabled in BIOS

Make sure CsmVideoDXE is not in the UEFI drivers64 folder that resides in the EFI>EFI>Clover folder (see attached image)

 

[rwillett]

I have triple monitors working with Mojave out of the box. I have dual AMD 280X graohics cards.

I got them working after weeks (months) of messing around with DVI ports which worked well under High Sierra. I could get two monitors working under Mojave. I then switched to DisplayPort and to HDMI and it just worked.

Pure luck I stumbled on it. No idea if this helps.