MP 1,1-5,1 Vega 64 MacOs 10.14.5 Resume from Sleep issues

[Claywd]

So I have a Mac Pro 5,1. I added a sapphire vega 64 limited edition (its silver) and the display reliably won't wake from sleep if left there for more than about 6 hours. Such as, encoding something over night.

I can still ssh into the machine but I can't get the display to come up no matter how many times I unload/reload/kill the WindowServer. It can't talk to the gpu for some reason. Sapphire has already replaced the card with a brand new unit so I'm sure its not a hardware problem.

I power the GPU with a 600Watt PSU dedicated to it and jumpered.

I've attached the kernel panic. The gpu is under no stress and my LG Display is usually completely off when I try to resume and the failure occurs. Not sure if it has something to do with the display completely disappearing due to sleeping.

Any help is appreciated.

Also, if someone might share the kext they are using that works for them, I'd like to see if there is any difference in what I have in Mojave. It should be the same but ya never know I guess.

Not Overheating

Uploaded new kernel panic

Updated to 10.14.6. No change.

Update
After 10.4.6 and using smc fan control to push pci fan to a min of 1200rpm.... it hasn't happened in a week. Records are being set. If it goes a month, I'll call it cured.

 

[h9826790]

So I have a Mac Pro 5,1. I added a sapphire vega 64 limited edition (its silver) and the display reliably won't wake from sleep if left there for more than about 6 hours. Such as, encoding something over night.

I can still ssh into the machine but I can't get the display to come up no matter how many times I unload/reload/kill the WindowServer. It can't talk to the gpu for some reason. Sapphire has already replaced the card with a brand new unit so I'm sure its not a hardware problem.

I power the GPU with a 600Watt PSU dedicated to it and jumpered.

I've attached the kernel panic. The gnu is under no stress and my LG Display is usually completely off when I try to resume and the failure occurs. Not sure if it has something to do with the display completely disappearing due to sleeping.

Any help is appreciated.

Recycle the monitor power, or even simple unplug / replug the cable cannot wake up the monitor?

 

[Claywd]

Recycle the monitor power, or even simple unplug / replug the cable cannot wake up the monitor?

Nope. Helps none. The entire visual rendering system goes offline. I can't screen share or use teamviewer or anything. A service I believe is called "WindowServer" on the mac.

 

[h9826790]

Then at least try update to 10.14.6, it may help for this kind of bug

 

[Claywd]

Then at least try update to 10.14.6, it may help for this kind of bug

Interesting. Checked last night and there were no updates. lol

I've updated to 10.6 and no change.

Promising that it had these fixes within it but no dice yet.
"
• Resolves an issue that may cause a hang during a restart
• Resolves a graphics issue that may occur when waking from sleep
• Fixes an issue that may cause fullscreen video to appear black on Mac mini
"

 

[MIKX]

Claywd.

if you have an EFI flashed card perhaps a new, clean, full install to a spare drive might do it.

 

[chrissomos]

This was happening to me for some time and I found that the GPU was overheating and shutting off even under no load. I turned up the PCIE fan to about 1600 at idle and it stopped happening. I am using a Vega FE. Good luck.

 

[Claywd]

This was happening to me for some time and I found that the GPU was overheating and shutting off even under no load. I turned up the PCIE fan to about 1600 at idle and it stopped happening. I am using a Vega FE. Good luck.

@chrissomos Interesting idea. Hard to believe its overheating overnight with no load on it

**Update**

Its not over heating. It sits between 20 and 40 degree C. lol

 

[Claywd]

Claywd.

if you have an EFI flashed card perhaps a new, clean, full install to a spare drive might do it.

Nope its not flashed. I could clean install but it doesn't do this with any other cards and I haven't automated my development setup yet so I am loath to fresh install. Might be worth it for testing though.