See if things are more stable if you disable the Skia Vulkan GPU rendering and just use the Skia software (aka raster) based rendering.

Tools -> Options -> View and check the 'Force Skia software rendering' so that it and the preceding 'Use Skia for all rendering' are both checked & restart LO

Thanks, will give it a shot and report back.

And if that improves things, please copy paste content of the skia.log from the LO user cache taken while Vulkan GPU is enabled.

Content we need look like these:

RenderMethod: vulkan
Vendor: 0x8086
Device: 0x8a52
API: 1.2.151
Driver: 0.402.661
DeviceType: integrated
DeviceName: Intel(R) Iris(R) Plus Graphics
Denylisted: no

(In reply to V Stuart Foote from comment #3)
> And if that improves things, please copy paste content of the skia.log from
> the LO user cache taken while Vulkan GPU is enabled.
> 
> Content we need look like these:
> 
> RenderMethod: vulkan
> Vendor: 0x8086
> Device: 0x8a52
> API: 1.2.151
> Driver: 0.402.661
> DeviceType: integrated
> DeviceName: Intel(R) Iris(R) Plus Graphics
> Denylisted: no

Sorry for the long wait time, yes, it definitely improved things. I have tried finding the skia.log file, but was unable to, where would it be?

(In reply to Poolitzer from comment #4)

> 
> Sorry for the long wait time, yes, it definitely improved things. I have
> tried finding the skia.log file, but was unable to, where would it be?

On Windows it would be %APPDATA%\LibreOffice\4\cache (or C:\Users\<yourusername>\AppData\Roaming\LibreOffice\4\cache). 

But you may need to first try renable Skia Vulkan rendering briefly so the skia.log gets populated with the Vulkan details--otherwise is will just show:
RenderMethod: raster
Compiler: Clang

which is what the non-accelerated raster only software libs for Skia will show.

The Vulkan related stanzas are what we need to judge a denylist action or possibly additional dev effort.

So only the first checkbox ('Use Skia for all rendering') got activated, which produces the log, but with the clang result...

(In reply to Poolitzer from comment #6)
> So only the first checkbox ('Use Skia for all rendering') got activated,
> which produces the log, but with the clang result...

OK, believe that will happen if your GPU fails some graphics testing on startup--to give you a usefull fall-back to Skia lib software rendering (the other check-box will toggle checked).

If you are inclined, a third party utility like RealTech-VR.com's glview [1] utility has a Vulkan test module that can provide the same details as our internal Vulkan module tests.

=-ref-=

[1] https://www.realtech-vr.com/home/glview

The other checkbox does not appear checked, no, but I can imagine that this is the reason using the software.

Running that software is fine, what exactly do you want me to do there? The rendering test?

Just need the first from the OpenGL Report, and down to the Device ID: stanza in the Vulkan report.

So for my nVidia K2000 daily driver:

Renderer: Quadro K2000/PCIe/SSE2
Vendor: NVIDIA Corporation
Version: 4.6.0 NVIDIA 473.81
Shading language version: 4.60 NVIDIA
Vulkan Layer (1)
Quadro K2000
API Version: 1.2.175
Driver Version: 473.324.0
Vendor ID: 10deh
Device ID: ffeh



as compared to the LibreOffice generated skia.log 

RenderMethod: vulkan
Vendor: 0x10de
Device: 0xffe
API: 1.2.175
Driver: 473.324.0
DeviceType: discrete
DeviceName: Quadro K2000
Denylisted: no
 
So hope you can see what we'd need from the GLView utility reports.

Hey there, I think I got it \o/

Renderer: AMD Radeon(TM) Graphics
Vendor: ATI Technologies Inc.
Version: 4.6.14830 Core Profile Forward-Compatible Context 21.10.02.03 27.20.21002.3000
Shading language version: 4.60
API Version: 1.2.170
Driver Version: 2.0.179
Vendor ID: 1002h
Device ID: 1636h
Device Type: INTEGRATED_GPU

(In reply to Poolitzer from comment #10)

OK, thanks! 

Shows it to be an AMD 1636 Renoir GPU [1], and Vulkan driver 2.0.179 (21.10.02.03 27.20.21002.3000).
 
The combination of AMD GPU and Vulkan driver older than 2.0.198 is already LibreOffice "denylisted" [2] for bug 146402, so this "fixed" by deny listing.
 
You could try updating to current 2.0.233 driver [3] and see if stability with Vulkan rendering improves and report back here. Otherwise continue to operate with Skia raster software rendering.

=ref-=
[1] https://pci-ids.ucw.cz/read/PC/1002
[2] https://opengrok.libreoffice.org/xref/core/vcl/skia/skia_denylist_vulkan.xml
[3] https://gpuopen.com/version-table/

Thanks for figuring this out. I will update the driver and report back.