Arch Linux

raingloom

Member

Registered: 2015-06-17

Posts: 43

[solved] Strange OpenGL behaviour in some applications

I can't use the color picker or take screenshots in Blender, the color picker always picks black and the screenshot is also full black. After doing either, the screen starts... it's hard to describe, I get these black lines across the screen, but only when the Blender window re-renders a part of itself.

Scaling is very slow in Krita, both with and without OpenGL and when I turn OpenGL on, input from my tablet becomes very laggy.
More precisely, it is only lagging while I'm drawing, the cursor movement itself is fine. Turning OpenGL on also changes the foreground color.

I'm not sure if any package is missing or anything is misconfigured, I can use CUDA in Blender, but advanced viewport features (eg.: ambient occlusion) cause lag. I had no problems in Ubuntu and the hardware did not change.

Some package info:

$ pacman -Qs nvidia
local/lib32-nvidia-utils 352.30-1
    NVIDIA drivers utilities (32-bit)
local/libvdpau 1.1-1
    Nvidia VDPAU library
local/nvidia 352.30-3
    NVIDIA drivers for linux
local/nvidia-utils 352.30-1
    NVIDIA drivers utilities
local/opencl-nvidia 352.30-1
    OpenCL implemention for NVIDIA
$ pacman -Qs opengl
local/freeglut 3.0.0-1
    Provides functionality for small OpenGL programs
local/glew 1.12.0-1
    The OpenGL Extension Wrangler Library
local/glfw 3.1.1-1
    A free, open source, portable framework for OpenGL application development
local/glproto 1.4.17-1
    X11 OpenGL extension wire protocol
local/glu 9.0.0-3
    Mesa OpenGL Utility library
local/gtkglext 1.2.0-10
    opengl extensions for gtk2
local/lib32-glu 9.0.0-2
    Mesa OpenGL utility library (32 bits)
local/lib32-mesa 10.6.4-1
    an open-source implementation of the OpenGL specification (32-bit)
local/libepoxy 1.3.1-1
    A library for handling OpenGL function pointer management for you
local/mesa 10.6.4-1
    an open-source implementation of the OpenGL specification

Last edited by raingloom (2015-08-18 17:15:53)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,076

Re: [solved] Strange OpenGL behaviour in some applications

You don't have nvidia-libgl and lib32-nvidia-libgl (they aren't hard deps of the nvidia packages because of Bumblebee when using with an optimus laptop)

Last edited by V1del (2015-08-18 08:17:18)

raingloom

Member

Registered: 2015-06-17

Posts: 43

Re: [solved] Strange OpenGL behaviour in some applications

Thank you, I installed it and things seem to be working.
Would it make sense to make these optional dependencies?