- May 15, 2016
- GIGABYTE Z170M D3H
- RX 480
Purple lines are happening to most AMD cards in Mojave 14.5 its weird, I've seen the multiple apples on IGPU boot but that looks really distorted.Thought it was cable length related, but looks like port 3 is possessed (next to HDMI).
I wonder if its AMD BIOS related and not just Apple...purple lines and dp audio glitch as well.
Yeah I think it might be AMD related too, not just Apple.Purple lines are happening to most AMD cards in Mojave 14.5 its weird, I've seen the multiple apples on IGPU boot but that looks really distorted.
XFX RX 460-560 have incompatible vbios. TechPowerup site has info to reflash the vbios to a Sapphire model.
Don't need to inject anything for Vega, it's supported natively.No speed increase with Vega 64?
Swapped out my RX580 for new Sapphire Vega 64. Did nothing but swap cards. Boots OK, but getting exactly the same results in Valley, FCPX, Geekbench, cinebench etc with the Vega as I did with the 580. No speed increase at all; no detectable difference
did a bit of snooping in my nvram.plist (emulation required by the mobo) and found
was surprised to see ref to nvidia at all. should that change for Radeon Vega?
Would love to get full value from my new Vega whatever it takes!
(Running Mojave 10.14.5)
Did you have WebDrivers installed prior? Try to see if you can delete all your previous NVIDIA remnants from the system.Thank you. That's what I thought.
Now I'm seriously confused then as to why the Vega is performing exactly like the RX580. Further, I went into my NVRAM.plist and -deleted- this entry:
Rebooted, and the entry has been -added back- into the nvram.plist.
That means nvda_drv has a non-zero value, so perhaps the OS is trying to load some default Nvidia driver?
Why is this entry there, and added back if I delete it? Could there be something in my config.plist doing this? Some driver that should not be loaded?
This is weird. Any suggestions on where to start looking or debugging this?