That link seems very interesting, and some of the posts are very recent. I'm away the following week, so I don't have access to the macine, but when I get back I'll tests it and if I have any positive result, I'll post.digipunk wrote: ⤴Fri Oct 15, 2021 12:26 pm Surely someone experienced could port the modified drivers to Linux? Also, I think I’ve found a solution to the audio issue. Could you please test it? Here: https://github.com/davidjo/snd_hda_macb ... -943435218
5K support in Linux mint
Forum rules
Before you post read how to get help. Topics in this forum are automatically closed 6 months after creation.
Before you post read how to get help. Topics in this forum are automatically closed 6 months after creation.
Re: 5K support in Linux mint
Re: 5K support in Linux mint
Sure, let me know!
Last edited by digipunk on Sat Oct 16, 2021 5:10 pm, edited 1 time in total.
Re: 5K support in Linux mint
How about we find out what the Pro 570 really is? The BootCamp drivers are labeled ‘R5 unified’. I also hear it is, in fact, an overclocked RX 470D. If you haven’t fully set your system up yet (I have, and I’ve got work-related software running on it), is there any chance you could try these drivers: https://www.amd.com/en/support/kb/relea ... -lin-18-40 , or even those I mentioned in my previous message? I’ve also contacted AMD asking them to explain how the BootCamp drivers work.-Max- wrote: ⤴Sat Oct 16, 2021 2:53 pmThat link seems very interesting, and some of the posts are very recent. I'm away the following week, so I don't have access to the macine, but when I get back I'll tests it and if I have any positive result, I'll post.digipunk wrote: ⤴Fri Oct 15, 2021 12:26 pm Surely someone experienced could port the modified drivers to Linux? Also, I think I’ve found a solution to the audio issue. Could you please test it? Here: https://github.com/davidjo/snd_hda_macb ... -943435218
Update: the iMac does use a custom-made timing controller after all, since it would have been impossible to drive the 5K display with this hardware otherwise: https://www.anandtech.com/show/8623/han ... na-display . That’s the root cause, I guess. @SMG, this is pretty much what I meant when I surmised they had done it out of necessity
Re: 5K support in Linux mint
But: https://www.ifixit.com/Answers/View/645 ... 9D+iMac+5kdigipunk wrote: ⤴Sat Oct 16, 2021 5:09 pm Update: the iMac does use a custom-made timing controller after all, since it would have been impossible to drive the 5K display with this hardware otherwise: https://www.anandtech.com/show/8623/han ... na-display . That’s the root cause, I guess. @SMG, this is pretty much what I meant when I surmised they had done it out of necessity
it refers to your article as well but shows this is only the case for the 2014-15 models
Re: 5K support in Linux mint
One possible difference between the earlier models versus the later ones is the type of DP capability available for each system. That may be why there is a different controller used in each. I checked the Wikipedia: Displayport info and there may have been changes in technology available across that timespan.-Max- wrote: ⤴Sun Oct 17, 2021 4:56 amBut: https://www.ifixit.com/Answers/View/645 ... 9D+iMac+5kdigipunk wrote: ⤴Sat Oct 16, 2021 5:09 pm Update: the iMac does use a custom-made timing controller after all, since it would have been impossible to drive the 5K display with this hardware otherwise: https://www.anandtech.com/show/8623/han ... na-display . That’s the root cause, I guess. @SMG, this is pretty much what I meant when I surmised they had done it out of necessity
it refers to your article as well but shows this is only the case for the 2014-15 models
Quoting from the link digipunk listed, "This also means that since it isn’t multi-tile, Apple would need to drive it over a single DisplayPort connection, which is actually impossible with conventional DisplayPort HBR2...our best theory is that Apple is running an overclocked DisplayPort/eDP interface along with some very low overhead timings to get just enough bandwidth for the job."
The xrandr output shows the port as DP and not eDP. Commonly, screens which are attached to the computer (such as laptops or all-in-one computers) are is listed as eDP. That may be another indication that Apple did something a bit different for this screen compared to what they may have done in the past.
A woman typing on a laptop with LM20.3 Cinnamon.
Re: 5K support in Linux mint
@SMG: Could you tell me where you see the port is listed as DP and not eDP in the xrandr output? I seem to only see eDP in the xrandr output.The xrandr output shows the port as DP and not eDP. Commonly, screens which are attached to the computer (such as laptops or all-in-one computers) are is listed as eDP. That may be another indication that Apple did something a bit different for this screen compared to what they may have done in the past.
Re: 5K support in Linux mint
I only see eDP as well. I'm not sure where I got it in my head that it was DP. Sorry about adding confusion to the thread.-Max- wrote: ⤴Tue Oct 19, 2021 5:00 am@SMG: Could you tell me where you see the port is listed as DP and not eDP in the xrandr output? I seem to only see eDP in the xrandr output.The xrandr output shows the port as DP and not eDP. Commonly, screens which are attached to the computer (such as laptops or all-in-one computers) are is listed as eDP. That may be another indication that Apple did something a bit different for this screen compared to what they may have done in the past.
A woman typing on a laptop with LM20.3 Cinnamon.
Re: 5K support in Linux mint
Update! AMD have responded as follows:
‘Unified R5 driver is the same as our Adrenalin driver for consumer graphics cards, but it can only install with Apple hardware. The 5K iMac has “tiled” display and the driver treats it like 2x 2.5K displays.’
‘Unified R5 driver is the same as our Adrenalin driver for consumer graphics cards, but it can only install with Apple hardware. The 5K iMac has “tiled” display and the driver treats it like 2x 2.5K displays.’
Re: 5K support in Linux mint
A response from AMD. I'm impressed
But how can we get this specific driver, install it, and get it to recognize the apple hardware?