No 4k/Retina with i7-8565U

[macfriend12]

Hi all,

i managed to install Big Sur on my HYSTOU P05B-i7-8565U mini pc. The system is running ok, though a couple of issues remain:

- Max Graphics resolution is 2560x1440, although i get 3840x2160 under Linux.
- Also no Retina support
- HDMI does not work at all, black screen upon GUI start
- DP does work
- Shutdown does not work reliably. Crash and failure to power off

Most important for me would be full UHD w/ Retina
Issues are same under Catalina.

Strangely, MacOS reports Intel 3EA5 for the GPU, which would be Iris Plus Graphics 655, although the i7-8565U only contains UHD 620 CPU. This obviously comes from incorrect specification in my OC config, but I really lack the knowledge on how to specify correct values.

The is no option for specifying DVMT in BIOS settings.

A related question: If I want to change the Model identifier (i.e. MacbookPro15,2), do I also have to adjust serial, boardsearial and the like ?

Complete Specs:

CPU: I7-8565U
Chipset: ???
RAM: 8GB
Monitor: Dell P2415Q
OpenCore 0.6.0

I hope that someone can help me with the resolution issue .

 

[zappy39]

Hi all,

i managed to install Big Sur on my HYSTOU P05B-i7-8565U mini pc. The system is running ok, though a couple of issues remain:

- Max Graphics resolution is 2560x1440, although i get 3840x2160 under Linux.
- Also no Retina support
- HDMI does not work at all, black screen upon GUI start
- DP does work
- Shutdown does not work reliably. Crash and failure to power off

Most important for me would be full UHD w/ Retina
Issues are same under Catalina.

Strangely, MacOS reports Intel 3EA5 for the GPU, which would be Iris Plus Graphics 655, although the i7-8565U only contains UHD 620 CPU. This obviously comes from incorrect specification in my OC config, but I really lack the knowledge on how to specify correct values.

The is no option for specifying DVMT in BIOS settings.

A related question: If I want to change the Model identifier (i.e. MacbookPro15,2), do I also have to adjust serial, boardsearial and the like ?

Complete Specs:

CPU: I7-8565U
Chipset: ???
RAM: 8GB
Monitor: Dell P2415Q
OpenCore 0.6.0

I hope that someone can help me with the resolution issue .

View attachment 504418

have altered your config Device properties give it a try.

 

[macfriend12]

Hi zappy39,

thanks for your help. Unfortunately, it does not seem to make any difference. Resolution is still the same. As you can see, your patch *is* reflected in System information.

Anything else that I can try?

-Heinrich

 

[macfriend12]

Screenshot was incorrect, taken via Screensharing:


MacOS seems to think it is connected to a TV set (hence 1080p). Image also suggests that.
I don't know if this important.
Note also, that screen mirroring is not available although there are two devices present.

-Heinrich

 

[zappy39]

Screenshot was incorrect, taken via Screensharing:

View attachment 504489
MacOS seems to think it is connected to a TV set (hence 1080p). Image also suggests that.
I don't know if this important.
Note also, that screen mirroring is not available although there are two devices present.

-Heinrich

ok try with this one with max pixel clock and backlight registers

 

[macfriend12]

Hi Zappy39,

unfortunately still no avail. How much does the model id matter? Can I easily play with it? (See question in my 1st post)

-Heinrich

 

[zappy39]

Hi Zappy39,

unfortunately still no avail. How much does the model id matter? Can I easily play with it? (See question in my 1st post)

-Heinrich

my hp laptop got same cpu I use MacBook Pro 15.2 but to get HDMI without black screen I have to use boot argument
agdpmod=vit9696 or igfxonln=1 you could try

 

[macfriend12]

Sadly, this doesn't make any difference too.
it seems I will have to settle with non retina modes. Right now, I am writing this on a machine with 4k/retina scaled to 1920x1080. Text is clear and crisp. On my new machine, 1920x1080 looks really blurred (on the same monitor).

-Heinrich

 

[macfriend12]

Looks good! How did you achieve this?
Note that I have UHD 620, not 630. Strangely, your Device ID 1916 suggests you have a HD 520?

 

[Mrgeque]

Hi all,

i managed to install Big Sur on my HYSTOU P05B-i7-8565U mini pc. The system is running ok, though a couple of issues remain:

- Max Graphics resolution is 2560x1440, although i get 3840x2160 under Linux.
- Also no Retina support
- HDMI does not work at all, black screen upon GUI start
- DP does work
- Shutdown does not work reliably. Crash and failure to power off

Most important for me would be full UHD w/ Retina
Issues are same under Catalina.

Strangely, MacOS reports Intel 3EA5 for the GPU, which would be Iris Plus Graphics 655, although the i7-8565U only contains UHD 620 CPU. This obviously comes from incorrect specification in my OC config, but I really lack the knowledge on how to specify correct values.

The is no option for specifying DVMT in BIOS settings.

A related question: If I want to change the Model identifier (i.e. MacbookPro15,2), do I also have to adjust serial, boardsearial and the like ?

Complete Specs:

CPU: I7-8565U
Chipset: ???
RAM: 8GB
Monitor: Dell P2415Q
OpenCore 0.6.0

I hope that someone can help me with the resolution issue .

View attachment 504418

try using a Mac mini smbios. also you do not have the 4k boot args and patches in device properties. add -cdfon and enable hdmi2.0 patch in device properties