| Bug ID | 98351 |
|---|---|
| Summary | LibreOffice' OpenGL backend hangs GPU (ring 0&3 stalled) |
| Product | Mesa |
| Version | 12.0 |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | linuxhippy@gmail.com |
| QA Contact | dri-devel@lists.freedesktop.org |
Starting LibreOffice Draw with their opengl rendering backend = enabled hangs the GPU: https://youtu.be/6C_qZdA6WdY<= /a> This happend on an AMD MULLINS based laptop running Fedora 24 (kernel 4.7.?, mesa 12.0.3). Steps to reproduce: - Download LibreOffice 5.2.3 - Install it - Start libreoffice writer - Enable OpenGL backend (menu -> tools -> options -> view -> op= engl for all rendering, disable blacklist) - start libreoffice draw -> hang
Thank you for the report. I cannot reproduce this on Tonga. Do= es this still happen for you with a later kernel and/or Mesa git? There have been some ha= ng fixes relatively recently. Are there any messages in dmesg before the "ring stalled" message= s?
I've just tried to reproduce - and the issue seems to be gone = with kernel 4.8.4 :) Thanks :)
Sorry that I step in, here. r600g - NI/Turks XT But how have you got enabled OpenGL by all means in LO? I have openSUSE 13.2 + all devel stuff... LO 5.2.2.2.0+ Latest stable kernel: 4.8.6-5.g1d89b44-default Mesa git, etc. pp. OpenGL is enabled OpenGL force is enabled But any time (since ever?) I get: OpenGL is currently _disabled_...??? Update to LO 5.2.3.x.x? Thanks, Dieter
Worked out of the box - maybe radeonsi supports some extension= s LO requires and r600 is missing? After all, at least with mesa LO's OpenGL backend is not worth the trouble = - it is slow and rendering isn't pixel-perfect.
Hi, I'm the guy that works on the OpenGL code in LibreOffice and I have the same problem on my machine with radeonsi. The problem is with area scale shader = [1] (which is used for scaling images in the document) - more specifically with= the arrays at line 51, 52, 54, 55. I changed the scale algorithm to not use any arrays but this still seems to be nouveau to the OpenGL driver as the shader works as expected with intel or nouveau driver as well as nvidia and amd drivers on windows, but OTOH not intel driver on windows. I also managed to= get it working if I reduce the array to 16 or less. [1] https://cgit.freedesk= top.org/libreoffice/core/tree/vcl/opengl/areaScaleFragmentShader.glsl?h=3Dl= ibreoffice-5-2-3#n51
Does this happen with latest mesa and llvm?
| What | Removed | Added |
|---|---|---|
| Status | NEW | RESOLVED |
| Resolution | --- | FIXED |
(In reply to Marek Ol=C5=A1=C3=A1k from comment #7) > Does this happen with latest mesa and llvm? Assuming it was fixed as per comment= 2 and closing.