- Joined
- Feb 8, 2012
- Messages
- 249
- Motherboard
- Asus Z97 Sabertooth
- CPU
- i7-4790K
- Graphics
- 2x GTX 1070
- Mac
- Mobile Phone
Take a dive into the ATI Radeon R9 270X Yosemite Support Needed
hello everyone. I have noticed more and more people on this site are investing in the new radeon r9 270x cards by radeon. I thought I would start a thread on how I fixed some of the bugs I have been having and how I solved them. I first off want to say I am no expert with hardware. I mostly like to do case mods and do not dive into things that are not completely vanilla with osx. But, I took a chance with this card because it was really affordable and matched my color scheme in my mod. I have the Sapphire R9 270x. I am not really sure if this guide will help anyone with the 270 without the x so i am just warning you ahead of time because the device id on the 270 is different (6811) I think. The device id with my card is 6810
Setup
1.In bios: Make sure you set Graphics to PCI-E
2.I used Graphics enabler=Yes (seems to work)
3.boot: Follow the EFI guide to boot with chimera. The reason why Chimera can not boot R9 series or seven series. The result is a boot error and a bunch of funky writing. http://www.tonymacx86.com/401-install-bootloader-extra-efi-partition.html
4.7xxx Framebuffer. Based on a lot of peoples feedback these cards should work out of box and when you first install them you see the signed (AMD Radeon HD 7xxx 2048 MB). Just to let you guys know I did not mess with any of the Frame Buffer personalities and I am getting full 3d acceleration out of this card. I will post bench marks on the bottom of this page. If you want to see more explanation check this out http://www.insanelymac.com/forum/topic/294315-radeon-r9-270x-framebuffer-issue/
5. ATY injector: From the link above I just used his modified ATY injector kext to get the correct signature in osx. see below. I did modify his a little because his device name he used was (ATI Radeon 200X Series) which i did not like so i modified to say (Radeon R9 270X). I will make a attach a zip file for anyone who wants it. The process is easy just remove your old one in hd/system/extensions and put mine on desktop and use text beast and reboot. The device signature should work.
Behaviors/Experimenting
6. Dual booting: I have a Apple 24" cinema display as my primary display via displayport. My secondary monitor is my sony hd tv that is hooked up via dvi to hdmi.
7. I can't have my hd tv on while booting osx or my primary monitor will freeze at the grey screen. If i unplug the secondary monitor the grey screen will leave and osx will pop up.
8. I can plug in the secondary monitor when im in osx but the secondary screen will just be black which is ok (but no picture) sony tv sees resolution as 1080i weird.
9. issue Fixed: In order to get my Secondary monitor to work I can do two things. I can have both plugged in at the same time if my my sony tv is plugged in and (off) while booting osx. I then have to put my Computer to sleep. Turn on my sony tv and wake my computer and wooohooo it works. If you have had a 6xxx or 7xxx you might be aware of the sleep trick well it works with the secondary monitors as well. The second thing I can do is have my secondary unplugged and wait for my computer to boot onto the desktop and plug my secondary sony tv into the dvi slot and turn it on to a black screen and sleep and wake and it will work like that also. I am a very lazy guy at night so i just keep it plugged in and turn off the tv when im not using it.
I hope this helps
Ricky
hello everyone. I have noticed more and more people on this site are investing in the new radeon r9 270x cards by radeon. I thought I would start a thread on how I fixed some of the bugs I have been having and how I solved them. I first off want to say I am no expert with hardware. I mostly like to do case mods and do not dive into things that are not completely vanilla with osx. But, I took a chance with this card because it was really affordable and matched my color scheme in my mod. I have the Sapphire R9 270x. I am not really sure if this guide will help anyone with the 270 without the x so i am just warning you ahead of time because the device id on the 270 is different (6811) I think. The device id with my card is 6810
Setup
1.In bios: Make sure you set Graphics to PCI-E
2.I used Graphics enabler=Yes (seems to work)
3.boot: Follow the EFI guide to boot with chimera. The reason why Chimera can not boot R9 series or seven series. The result is a boot error and a bunch of funky writing. http://www.tonymacx86.com/401-install-bootloader-extra-efi-partition.html
4.7xxx Framebuffer. Based on a lot of peoples feedback these cards should work out of box and when you first install them you see the signed (AMD Radeon HD 7xxx 2048 MB). Just to let you guys know I did not mess with any of the Frame Buffer personalities and I am getting full 3d acceleration out of this card. I will post bench marks on the bottom of this page. If you want to see more explanation check this out http://www.insanelymac.com/forum/topic/294315-radeon-r9-270x-framebuffer-issue/
5. ATY injector: From the link above I just used his modified ATY injector kext to get the correct signature in osx. see below. I did modify his a little because his device name he used was (ATI Radeon 200X Series) which i did not like so i modified to say (Radeon R9 270X). I will make a attach a zip file for anyone who wants it. The process is easy just remove your old one in hd/system/extensions and put mine on desktop and use text beast and reboot. The device signature should work.
Behaviors/Experimenting
6. Dual booting: I have a Apple 24" cinema display as my primary display via displayport. My secondary monitor is my sony hd tv that is hooked up via dvi to hdmi.
7. I can't have my hd tv on while booting osx or my primary monitor will freeze at the grey screen. If i unplug the secondary monitor the grey screen will leave and osx will pop up.
8. I can plug in the secondary monitor when im in osx but the secondary screen will just be black which is ok (but no picture) sony tv sees resolution as 1080i weird.
9. issue Fixed: In order to get my Secondary monitor to work I can do two things. I can have both plugged in at the same time if my my sony tv is plugged in and (off) while booting osx. I then have to put my Computer to sleep. Turn on my sony tv and wake my computer and wooohooo it works. If you have had a 6xxx or 7xxx you might be aware of the sleep trick well it works with the secondary monitors as well. The second thing I can do is have my secondary unplugged and wait for my computer to boot onto the desktop and plug my secondary sony tv into the dvi slot and turn it on to a black screen and sleep and wake and it will work like that also. I am a very lazy guy at night so i just keep it plugged in and turn off the tv when im not using it.
I hope this helps
Ricky