Contribute
Register

High Sierra - RX Vega & Final Cut h.264 fix

Joined
Jun 17, 2016
Messages
11
Hi there,

Last week I was as able to score and receive Sapphire RX Vega 56 on Amazon for 399 $ by following tracking stocks web site. When card arrived final version of High Sierra was not published. There were few days left....

So i first tried with beta and everything worked well, sleep mode finally 100% perfect (even on 980ti it was not perfect) so I was really happy until I tried to export video with h.264 in FCX. I was getting error right away. I hoped that final release will fix this and after few days I was on final and I had same issue. From that moment I tried EVERYTHING but with no success. Pro res rendering was working fine, except h.264 which I use.

Finally today after few days and 30+ reinstalls and who knows what, I even flashed RX 56 to RX 64 but nothing changed. I tried with or without WhateverGreen.kext and Lilu.kext no difference.

Each time it would crash on the beginning. Also Chrome was crashing randomly freezing the system.

I tried changing SMBIOS 14.2, 17.1 nothing helped....

until I just did this

SMB_BIOS_VERSION "IM191.88Z.0058.B00.1705091711"
SMB_PRODUCT_NAME "iMac19,1"
SMB_BOARD_PRODUCT "Mac-CF21D135A7D34AA6"

and I changed product name to Imac19.1, setup board product and bios version and reboot and that was it........

H.264 export works :)))))

I did the test, same 4k clip (1 minute 58 seconds) with same system h.264 rendering:

980 TI - 10 minutes 29 sec
RX Vega 56 w 64 bios - 9 minutes 47 seconds

I think it is still not optimized since I was getting 13 C lower CPU temp (around 61 C on i6700k with RX Vega and the card also was working almost in idle with only one led light on and the ultra quite mode with fan spinning in low comparing with 980ti where with same system and cpu temp was around 75C with full speed fan on CPU and GPU.

Not bad for the start, but at least this is solved since i couldn't`fine anyone even speaking about this issue anywhere

also tried Bruce test with 20 seconds vs 13 sec which I was getting with 14.2 & high sierra beta, so it looks it is slower but at least works now

also Chrome is not freezing anymore after this at least for last 2 hours since I did it with YT on...
 
Last edited:
Joined
Aug 21, 2010
Messages
177
Motherboard
Z370 Gigabyte Gaming 7
CPU
i7-8700K
Graphics
Vega 56
@Diorama , thanks very much!

Does this mean we can have nearly crash free FCP X? :)
 
Last edited:
Joined
Dec 25, 2015
Messages
162
Motherboard
Asus Maximus X Code Z-370
CPU
i7-8700K
Graphics
Vega 64
Mac
MacBook Pro, Mac mini, Mac Pro
Mobile Phone
iOS
Hi there,

Last week I was as able to score and receive Sapphire RX Vega 56 on Amazon for 399 $ by following tracking stocks web site. When card arrived final version of High Sierra was not published. There were few days left....

So i first tried with beta and everything worked well, sleep mode finally 100% perfect (even on 980ti it was not perfect) so I was really happy until I tried to export video with h.264 in FCX. I was getting error right away. I hoped that final release will fix this and after few days I was on final and I had same issue. From that moment I tried EVERYTHING but with no success. Pro res rendering was working fine, except h.264 which I use.

Finally today after few days and 30+ reinstalls and who knows what, I even flashed RX 56 to RX 64 but nothing changed. I tried with or without WhateverGreen.kext and Lilu.kext no difference.

Each time it would crash on the beginning. Also Chrome was crashing randomly freezing the system.

I tried changing SMBIOS 14.2, 17.1 nothing helped....

until I just did this

SMB_BIOS_VERSION "IM191.88Z.0058.B00.1705091711"
SMB_PRODUCT_NAME "iMac19,1"
SMB_BOARD_PRODUCT "Mac-CF21D135A7D34AA6"

and I changed product name to Imac19.1, setup board product and bios version and reboot and that was it........

H.264 export works :)))))

I did the test, same 4k clip (1 minute 58 seconds) with same system h.264 rendering:

980 TI - 10 minutes 29 sec
RX Vega 56 w 64 bios - 9 minutes 47 seconds

I think it is still not optimized since I was getting 13 C lower CPU temp (around 61 C on i6700k with RX Vega and the card also was working almost in idle with only one led light on and the ultra quite mode with fan spinning in low comparing with 980ti where with same system and cpu temp was around 75C with full speed fan on CPU and GPU.

Not bad for the start, but at least this is solved since i couldn't`fine anyone even speaking about this issue anywhere

also tried Bruce test with 20 seconds vs 13 sec which I was getting with 14.2 & high sierra beta, so it looks it is slower but at least works now

also Chrome is not freezing anymore after this at least for last 2 hours since I did it with YT on...
I am still getting crashes in different applications though chrome is working fine.
 
Joined
Jun 17, 2016
Messages
11
Geekbench Open CL RX Vega 56 with 64 bios
Windows 10 - 212K
High Sierra - around 140k to 145k
High Sierra with lilu.kext and WhateverGreen.kext 155-160K
 
Joined
Sep 17, 2017
Messages
64
Motherboard
Gigabyte Z270X- Gaming 5
CPU
i7-i7700
Graphics
RX Vega 64
Mac
iMac
OK,
managed to fix it after disabling integrated graphics in BIOS. No crashing as of yet. Was crashing instantly before.
 
Joined
Jul 13, 2013
Messages
16
Motherboard
GA Z77-D3H
CPU
Core i5 3570K
Graphics
RX Vega 56
Mac
MacBook Pro
Mobile Phone
iOS
Good tip @Diorama. I haven't given it a go yet – my MBP TB is my video workhorse these days - but this is exactly the behaviour I'm getting with my RX Vega 56 so will probably try it soon.

I've got iGPU disabled in the BIOS, though not sure how much that matters.
 
Joined
Oct 3, 2015
Messages
44
Motherboard
Asus x299 Prime Deluxe
CPU
i9-7900X
Graphics
Vega 64
Mac
MacBook
Mobile Phone
iOS
I am still getting crashes in different applications though chrome is working fine.
How did you fix the chrome crashing? changing to 19,1 fixed my export but chrome and other electron based app still freezes and sometimes would just log me off.
 
Joined
Jun 17, 2016
Messages
11
How did you fix the chrome crashing? changing to 19,1 fixed my export but chrome and other electron based app still freezes and sometimes would just log me off.
after 2 hours I had few crashes on chrome so I disabled hardware acceleration for now
 
Last edited:
Joined
Sep 17, 2017
Messages
64
Motherboard
Gigabyte Z270X- Gaming 5
CPU
i7-i7700
Graphics
RX Vega 64
Mac
iMac
Hi there,

Last week I was as able to score and receive Sapphire RX Vega 56 on Amazon for 399 $ by following tracking stocks web site. When card arrived final version of High Sierra was not published. There were few days left....

So i first tried with beta and everything worked well, sleep mode finally 100% perfect (even on 980ti it was not perfect) so I was really happy until I tried to export video with h.264 in FCX. I was getting error right away. I hoped that final release will fix this and after few days I was on final and I had same issue. From that moment I tried EVERYTHING but with no success. Pro res rendering was working fine, except h.264 which I use.

Finally today after few days and 30+ reinstalls and who knows what, I even flashed RX 56 to RX 64 but nothing changed. I tried with or without WhateverGreen.kext and Lilu.kext no difference.

Each time it would crash on the beginning. Also Chrome was crashing randomly freezing the system.

I tried changing SMBIOS 14.2, 17.1 nothing helped....

until I just did this

SMB_BIOS_VERSION "IM191.88Z.0058.B00.1705091711"
SMB_PRODUCT_NAME "iMac19,1"
SMB_BOARD_PRODUCT "Mac-CF21D135A7D34AA6"

and I changed product name to Imac19.1, setup board product and bios version and reboot and that was it........

H.264 export works :)))))

I did the test, same 4k clip (1 minute 58 seconds) with same system h.264 rendering:

980 TI - 10 minutes 29 sec
RX Vega 56 w 64 bios - 9 minutes 47 seconds

I think it is still not optimized since I was getting 13 C lower CPU temp (around 61 C on i6700k with RX Vega and the card also was working almost in idle with only one led light on and the ultra quite mode with fan spinning in low comparing with 980ti where with same system and cpu temp was around 75C with full speed fan on CPU and GPU.

Not bad for the start, but at least this is solved since i couldn't`fine anyone even speaking about this issue anywhere

also tried Bruce test with 20 seconds vs 13 sec which I was getting with 14.2 & high sierra beta, so it looks it is slower but at least works now

also Chrome is not freezing anymore after this at least for last 2 hours since I did it with YT on...

Hi there,
can you post a snap pic of your settings. I'm not getting same results with mine.

Thx
 
Top