Big lag with 2 monitors #115405

New Issue

DimplesApplePie Starchild · 2023-11-25T14:14:49+01:00

2023-11-25 14:14:49 +01:00

EDIT : I found the BIG solution on the down of the page, and that work awesome and fix all issues !

System Information
Operating system: macOS-13.6.3-arm64-arm-64bit 64 Bits
Graphics card: Metal API Apple M2 Pro 1.2

Blender Version
Broken: version: 3.6.6, branch: blender-v3.6-release, commit date: 2023-11-22 18:47, hash: 064a48ad28e3
Worked: (newest version of Blender that worked as expected)

Short description of error
If I plug 2 monitors the menus take hours to open. If I un plug the second monitor it's all fast.

Exact steps for others to reproduce the error
Plug 2 monitors, try the menus notice the big lag.
Remove 1 monitor and keep 1 and notice the speed to use the menu, much faster.

I haven't got any of those problems with my Mac Pro 5.1 with intel processors in past. And I have those problems with blender only and ALL versions

EDIT : I found the BIG solution on the down of the page, and that work awesome and fix all issues ! **System Information** Operating system: macOS-13.6.3-arm64-arm-64bit 64 Bits Graphics card: Metal API Apple M2 Pro 1.2 **Blender Version** Broken: version: 3.6.6, branch: blender-v3.6-release, commit date: 2023-11-22 18:47, hash: `064a48ad28e3` Worked: (newest version of Blender that worked as expected) **Short description of error** If I plug 2 monitors the menus take hours to open. If I un plug the second monitor it's all fast. **Exact steps for others to reproduce the error** Plug 2 monitors, try the menus notice the big lag. Remove 1 monitor and keep 1 and notice the speed to use the menu, much faster. I haven't got any of those problems with my Mac Pro 5.1 with intel processors in past. And I have those problems with blender only and ALL versions

DimplesApplePie Starchild added the

labels 2023-11-25 14:14:50 +01:00

Pratik Borhade commented

2023-11-27 11:35:52 +01:00

Hi, thanks for the report. Have you got this behavior in full-screen window?
We have few related bugs already: #111600 / #114875
Have you checked with factory settings?: File > Defaults > Load Factory Settings

Hi, thanks for the report. Have you got this behavior in full-screen window? We have few related bugs already: #111600 / #114875 Have you checked with factory settings?: `File > Defaults > Load Factory Settings`

Pratik Borhade added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-11-27 11:38:46 +01:00

Michael Parkin-White commented

2023-11-27 15:12:44 +01:00

Thank you for the report, could you please confirm whether it is just the presence of two monitors being plugged in which makes this slow, or whether you have open windows on all monitors?

Was the setup the same with the Mac Pro?

One thing to bear in mind is that if you are using a MacBook, the native resolution of the retina display is fairly high. A 16" MacBook has a resolution of 3456x2234, which is not far off 4k in terms of total pixels and 3.7x the resolution of 1080p, meaning if you have a complex scene open, it may be the case that the GPU is under heavy load.

I'd be curious to know if scaling back the resolution of the display affects this.

If however this is not related to performance directly, but rather input latency on updates for secondary scenes, this would be good to understand.

I've not been able to reproduce the issue locally, so would be curious what combination of monitors and resolution you are using?
Is there any difference between which side of the device monitor are plugged into? (or whether via USB-C or HDMI?)

While i'm not familiar with the area in Blender, my other thought would be whether the display detection module is somehow resetting window focus state.

Thanks!

Thank you for the report, could you please confirm whether it is just the presence of two monitors being plugged in which makes this slow, or whether you have open windows on all monitors? Was the setup the same with the Mac Pro? One thing to bear in mind is that if you are using a MacBook, the native resolution of the retina display is fairly high. A 16" MacBook has a resolution of 3456x2234, which is not far off 4k in terms of total pixels and 3.7x the resolution of 1080p, meaning if you have a complex scene open, it may be the case that the GPU is under heavy load. I'd be curious to know if scaling back the resolution of the display affects this. If however this is not related to performance directly, but rather input latency on updates for secondary scenes, this would be good to understand. I've not been able to reproduce the issue locally, so would be curious what combination of monitors and resolution you are using? Is there any difference between which side of the device monitor are plugged into? (or whether via USB-C or HDMI?) While i'm not familiar with the area in Blender, my other thought would be whether the display detection module is somehow resetting window focus state. Thanks!

DimplesApplePie Starchild commented

2023-11-27 16:11:25 +01:00

Hi!, I'm confused, hy are you talking about Macbook ? I said it's a MAC MINI M2 PRO.
So I have tried everything !
Load Factory, changed the bus of my port, etc etc ALL the things, EVEN removed the full Blender Settings folders to have the real setup by default.
Also, unplugged all external stuff, hard disc etc and kept the essential only.
And Resolution is low : 1920 X 1080 by default 60 Hertz
I tried all, Both monitor in Thunderbot, same, I tried HDMI + Adapatator Apple to have a second HDMI, same.

And when I use ONE Single monitor, it's all then FAST.
But in 3D we can't work with 1 single monitor.

I tried all blender versions even the intel to check, same problems, so it's clearly a problem related with blender.

Hi!, I'm confused, hy are you talking about Macbook ? I said it's a MAC MINI M2 PRO. So I have tried everything ! Load Factory, changed the bus of my port, etc etc ALL the things, EVEN removed the full Blender Settings folders to have the real setup by default. Also, unplugged all external stuff, hard disc etc and kept the essential only. And Resolution is low : 1920 X 1080 by default 60 Hertz I tried all, Both monitor in Thunderbot, same, I tried HDMI + Adapatator Apple to have a second HDMI, same. And when I use ONE Single monitor, it's all then FAST. But in 3D we can't work with 1 single monitor. I tried all blender versions even the intel to check, same problems, so it's clearly a problem related with blender.

DimplesApplePie Starchild referenced this issue

2023-11-27 16:14:35 +01:00

Menu items slow to open, laggy, in video editing mode on Mac M2 #111600

Michael Parkin-White commented

2023-11-27 16:15:40 +01:00

Thanks for the confirmation, the report stated the OS and GPU model (Apple M2 Pro), but did not state form-factor.

I will fetch a Mac Mini and have a look into this and see if we can reproduce this.

Thanks for the confirmation, the report stated the OS and GPU model (Apple M2 Pro), but did not state form-factor. I will fetch a Mac Mini and have a look into this and see if we can reproduce this.

DimplesApplePie Starchild commented

2023-11-27 16:17:14 +01:00

Yes, more infos, EVEN with the basic scene with the Cube.
I mean, even with a new project open, without any add-ons.
And for the system setting, I have tried EVERYTHING possible, Same problem.

Here is the infos fully about my mac : https://gyazo.com/70eb1ccec80ac9346594246fdc28c091

Yes, more infos, EVEN with the basic scene with the Cube. I mean, even with a new project open, without any add-ons. And for the system setting, I have tried EVERYTHING possible, Same problem. Here is the infos fully about my mac : https://gyazo.com/70eb1ccec80ac9346594246fdc28c091

DimplesApplePie Starchild commented

2023-11-27 16:19:17 +01:00

No description provided.

70eb1ccec80ac9346594246fdc28c091.png

60 KiB

DimplesApplePie Starchild commented

2023-11-29 14:05:08 +01:00

YAY !!!
Today I found the solution, and a REALLY big one, Everything is so much faster on my mac.
"Displays have separate Spaces" on setting Desktop and Icon.
For the use that change nothing, but now blender is deffo fixed and fast !
No more problem and I can put my viewer and blender in the full screen that don't cause any lags !

https://gyazo.com/8e90add0fd2ef6ab0a90f77235c21f42

YAY !!! Today I found the solution, and a REALLY big one, Everything is so much faster on my mac. "Displays have separate Spaces" on setting Desktop and Icon. For the use that change nothing, but now blender is deffo fixed and fast ! No more problem and I can put my viewer and blender in the full screen that don't cause any lags ! https://gyazo.com/8e90add0fd2ef6ab0a90f77235c21f42

39973f8b-5de9-4549-bfc7-764bc7e12f23.png

453 KiB

DimplesApplePie Starchild referenced this issue

2023-11-29 14:10:11 +01:00

Regression: Blender Viewport Lagging in 4.0.0 (MacOS) #114875

DimplesApplePie Starchild referenced this issue

2023-11-29 14:13:08 +01:00

Menu items slow to open, laggy, in video editing mode on Mac M2 #111600

DimplesApplePie Starchild commented

2023-11-30 18:45:43 +01:00

I did a try a full day, no more lags and problems anymore, also a big huge amount of performance !!!
Event at 1024 samples, on cycle, it does the rendering in less 3 seconds.

I did a try a full day, no more lags and problems anymore, also a big huge amount of performance !!! Event at 1024 samples, on cycle, it does the rendering in less 3 seconds.

DimplesApplePie Starchild closed this issue

2023-11-30 18:45:46 +01:00

Blender Bot added

Status

Archived

and removed

Status

Needs Information from User

labels 2023-11-30 18:45:47 +01:00

Doug-Lapsley referenced this issue

2024-02-13 06:01:38 +01:00

Menu items slow to open, laggy, in video editing mode on Mac M2 #111600