System Hangs while Interacting with the Viewport #106752

New Issue

Adam T. Ryder · 2023-04-10T04:36:11+02:00

Adam T. Ryder commented

2023-04-10 04:36:11 +02:00

System Information
Operating system: Manjaro KDE Plasma
Graphics card: Intel HD Graphics (Cherry Trail) Atom X7-Z8700

Blender Version
Broken: 3.5.0, 3.4.0, 3.4.1
Worked: 3.3.2 (Haven't tried newer versions in the 3.3.x series)

Short description of error
Blender causes the entire system to hang periodically while performing any task. Simply rotating the camera or zooming in or out results in the system freezing for minutes at a time. The mouse cursor responds to mouse and touchpad movement, but the system does not respond to mouse button clicks or keyboard input for long periods of time. Neither Blender nor the desktop respond.

When rotating, moving or zooming the camera text overlays in the viewport flicker, sometimes the entire viewport flickers, then the system hangs. There are no errors or warnings printed to the terminal

Exact steps for others to reproduce the error
Doesn't appear to be related to a specific file. The issue is present in all blend files and when starting with the default setup.

**System Information** Operating system: Manjaro KDE Plasma Graphics card: Intel HD Graphics (Cherry Trail) Atom X7-Z8700 **Blender Version** Broken: 3.5.0, 3.4.0, 3.4.1 Worked: 3.3.2 (Haven't tried newer versions in the 3.3.x series) **Short description of error** Blender causes the entire system to hang periodically while performing any task. Simply rotating the camera or zooming in or out results in the system freezing for minutes at a time. The mouse cursor responds to mouse and touchpad movement, but the system does not respond to mouse button clicks or keyboard input for long periods of time. Neither Blender nor the desktop respond. When rotating, moving or zooming the camera text overlays in the viewport flicker, sometimes the entire viewport flickers, then the system hangs. There are no errors or warnings printed to the terminal **Exact steps for others to reproduce the error** Doesn't appear to be related to a specific file. The issue is present in all blend files and when starting with the default setup.

Adam T. Ryder added the

labels 2023-04-10 04:36:12 +02:00

Pratik Borhade commented

2023-04-10 05:19:21 +02:00

Hi, thanks for the report. Does this issue happen in particular viewport shading mode?
This could be same as #106401
Can you check again in 3.6 build?: https://builder.blender.org/download/daily/

Hi, thanks for the report. Does this issue happen in particular viewport shading mode? This could be same as #106401 Can you check again in 3.6 build?: https://builder.blender.org/download/daily/

Pratik Borhade added

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labels 2023-04-10 05:19:29 +02:00

Adam T. Ryder commented

2023-04-10 09:14:05 +02:00

It happens in the solid shading mode. I haven't tried wireframe, eevee or cycles shading modes, but will check when I get the chance.

Adam T. Ryder commented

2023-04-10 17:31:27 +02:00

I tested the default cube scene running blender-3.6.0-alpha+main.cc5128f6cafa-linux.x86_64-release using the four shading modes with the following results:

Wireframe:
Periodic long freezes+flickering. Eventually crashed with console output "zsh: IOT instruction (core dumped) ./blender"

Solid:
Periodic long freezes+flickering

Material Preview:
Periodic long freezes+flickering. Eventually crashed with console output "zsh: IOT instruction (core dumped) ./blender"

Rendered (EEVEE):
Periodic long freezes+flickering

Rendered (Cycles):
Works perfectly

Additionally, my system continued to be very sluggish and slow to respond after closing Blender. It did not seem to recover until a reboot.

I tested the default cube scene running blender-3.6.0-alpha+main.cc5128f6cafa-linux.x86_64-release using the four shading modes with the following results: **Wireframe**: Periodic long freezes+flickering. Eventually crashed with console output "zsh: IOT instruction (core dumped) ./blender" **Solid**: Periodic long freezes+flickering **Material Preview**: Periodic long freezes+flickering. Eventually crashed with console output "zsh: IOT instruction (core dumped) ./blender" **Rendered (EEVEE)**: Periodic long freezes+flickering **Rendered (Cycles)**: Works perfectly Additionally, my system continued to be very sluggish and slow to respond after closing Blender. It did not seem to recover until a reboot.

Adam T. Ryder commented

2023-04-10 17:39:12 +02:00

Additional system information

KDE Plasma: 5.26.5
KDE Frameworks: 5.103.0
Qt: 5.15.8
Kernel: 5.15.94-1
RAM: 4GB (0.83GiB used)

Problem is present under both X11 and Wayland.

Additional system information KDE Plasma: 5.26.5 KDE Frameworks: 5.103.0 Qt: 5.15.8 Kernel: 5.15.94-1 RAM: 4GB (0.83GiB used) Problem is present under both X11 and Wayland.

Pratik Borhade commented

2023-04-11 13:44:27 +02:00

Thanks. Can you run blender from command line with --debug option? Does it generate/capture any error?
Any difference after switching to METAL viewport backend?

Thanks. Can you run blender from command line with `--debug` option? Does it generate/capture any error? Any difference after switching to METAL viewport backend?

Adam T. Ryder commented

2023-04-11 16:33:00 +02:00

I ran again until crash with 3.5.0 using the --debug option and, unfortunately, there was no additional output. There's no crash log written to /tmp either.

Additionally I can't find any option to switch to the METAL backend, but I'm not using an Apple computer anyway. Actually it's a Microsoft Surface 3.

I ran again until crash with 3.5.0 using the --debug option and, unfortunately, there was no additional output. There's no crash log written to /tmp either. Additionally I can't find any option to switch to the METAL backend, but I'm not using an Apple computer anyway. Actually it's a Microsoft Surface 3.

Adam T. Ryder commented

2023-04-11 19:11:37 +02:00

Played around with it a bit more and found that the problem is less prevalent when not running in fullscreen mode. When not in fullscreen the flickering and freezing only occurred in the Material Preview shading mode. I ran Blender alongside the KSysGuard system monitor and found that when it froze CPU4 maintained 100% utilization while the other 3 cores dropped near zero.

Then I disabled the desktop compositor and found that the flickering and freezing no longer occurred.

Played around with it a bit more and found that the problem is less prevalent when not running in fullscreen mode. When not in fullscreen the flickering and freezing only occurred in the Material Preview shading mode. I ran Blender alongside the KSysGuard system monitor and found that when it froze CPU4 maintained 100% utilization while the other 3 cores dropped near zero. ![BlendFreeze.png](/attachments/8a154c70-b2a6-4d23-8181-782e5803192b) Then I disabled the desktop compositor and found that the flickering and freezing no longer occurred.

BlendFreeze.png

950 KiB

Pratik Borhade added

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labels 2023-04-19 07:45:45 +02:00

Pratik Borhade commented

2023-04-24 16:00:40 +02:00

Additionally I can't find any option to switch to the METAL backend, but I'm not using an Apple computer anyway. Actually it's a Microsoft Surface 3.

I'm not sure if this setup is supported. @brecht ?

> Additionally I can't find any option to switch to the METAL backend, but I'm not using an Apple computer anyway. Actually it's a Microsoft Surface 3. I'm not sure if this setup is supported. @brecht ?

Brecht Van Lommel commented

2023-04-24 16:30:44 +02:00

@PratikPB2123 Metal is only for macOS, it's not relevant for this report about Linux.

Pratik Borhade commented

2023-04-24 17:42:28 +02:00

Ah, sorry. I later forget about the OS mentioned in the report (it's linux and I assumed Mac).

Pratik Borhade referenced this issue

2023-12-19 11:56:42 +01:00

Blender on Ubuntu freezes with no logs every time I use the scaling tool #116322

Pratik Borhade commented

2023-12-20 04:21:20 +01:00

@HamburgerJones hi, still encountering this problem?
Can you check whether it works?: #116322 (comment)

$ echo 10000 | sudo tee /sys/class/drm/card0/engine/rcs0/preempt_timeout_ms
$ INTEL_DEBUG=reemit blender

@HamburgerJones hi, still encountering this problem? Can you check whether it works?: https://projects.blender.org/blender/blender/issues/116322#issuecomment-1087634 ``` $ echo 10000 | sudo tee /sys/class/drm/card0/engine/rcs0/preempt_timeout_ms $ INTEL_DEBUG=reemit blender ```

Pratik Borhade added

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labels 2023-12-20 04:21:30 +01:00

Pratik Borhade commented

2024-03-01 05:54:12 +01:00

@HamburgerJones ^

Adam T. Ryder commented

2024-03-04 15:51:44 +01:00

I have a new computer now, but I pulled out my old Surface 3 to test this out with Blender 4.0.2. Just using the default cube scene I'd say the problem is even worse. The scene loads up, but after maybe a second or less of rotating the camera Blender hangs for a long period of time, then starts responding for split seconds as it tries to complete the camera rotation then crashes to the desktop with the following output:

zsh: IOT instruction (core dumped) INTEL_DEBUG=reemit ./blender

I should note that the timeout command doesn't appear to have worked. When running the first command the output is as follows:

tee: /sys/class/drm/card0/engine/rcs0/preempt_timeout_ms: permission denied
10000

I typed my password correctly.

I have a new computer now, but I pulled out my old Surface 3 to test this out with Blender 4.0.2. Just using the default cube scene I'd say the problem is even worse. The scene loads up, but after maybe a second or less of rotating the camera Blender hangs for a long period of time, then starts responding for split seconds as it tries to complete the camera rotation then crashes to the desktop with the following output: zsh: IOT instruction (core dumped) INTEL_DEBUG=reemit ./blender I should note that the timeout command doesn't appear to have worked. When running the first command the output is as follows: tee: /sys/class/drm/card0/engine/rcs0/preempt_timeout_ms: permission denied 10000 I typed my password correctly.

Pratik Borhade commented

2024-03-15 10:02:29 +01:00

okay, thanks. Could you attach system info: Help > Save System Info

okay, thanks. Could you attach system info: `Help > Save System Info`

Adam T. Ryder commented

2024-03-21 21:31:21 +01:00

System info attached

system-info.txt

12 KiB

Pratik Borhade commented

2024-04-10 08:10:34 +02:00

Thanks. Any improvements after updating mesa drivers?