| Summary: | Cover/Flip Switch broken in multi screen setups | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | m.wege |
| Component: | effects-window-management | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | Keywords: | reproducible |
| Priority: | NOR | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Ubuntu | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | 4.7.3 | |
|
Description
m.wege
2011-10-08 15:56:53 UTC
"kcmshell4 xinerama" - ensure that "Enable ... fullscreen support" is checked (you likely want to check all, but you got to figure yourself) iirc this is the default, i'll have a look, but what kind of distribution do you use? Full screen support is enabled. I am using Kubuntu Natty with KDE 7.1 What kind of multiscreen (randr, xinerama, twinview) setup and on what GPU/Driver? I am not sure, but most likely I am using RANDR, since I use just the stand KDE settings module. Driver is Intel (Intel GMA HD (5700MHD)) on an X201. I can reproduce here, flip switch is affected as well Ok, it does NOT happen on nvidia/TwinView for me. Neither in 4.7 branch nor in git master. => kephal/x/krandr thing? @Martin You tried on intel as well? Have you checked the reported screen amount? And what about maximizing then? (recall the kde-devel mail?) > 21:56:20 --- Ok, it does NOT happen on nvidia/TwinView for me.
> Neither in 4.7 branch nor in git master.
>
> => kephal/x/krandr thing?
>
> @Martin
> You tried on intel as well? Have you checked the reported screen amount?
> And what about maximizing then? (recall the kde-devel mail?)
I only noticed on my current branch which is behind master by something like
two weeks. So most recent changes are not yet in there. as soon as I finished
my current work on the branch I'll switch back to master and investigate.
And yeah most likely a kephal thing.
I just investigated and noticed: * OpenGL 1 code path: correct * OpenGL ES 2 code path: correct * OpenGL 2 code path: incorrect somehow I think the OpenGL 1 parts influence the OpenGL 2 code path - that's the only difference to GLES. And that could be a driver thing which would explain why Thomas isn't seeing it. Git commit cab2fee5c934ade31d457d470b042b578f74b9d8 by Martin Gräßlin. Committed on 15/10/2011 at 09:47. Pushed by graesslin into branch 'KDE/4.7'. Ensure that always one shader is on the ShaderStack with GL2 This brings some consistency with GLES2 where also one shader is always on the stack and allows to use the test whether a shader is bound to see if the GL2 code path is used. This fixes an issue with cover/flip switch which tested for a bound shader before the shader was pushed in multi screen setups. As well it should bring some improvements as the simple screen shader is not unbound and rebound in each rendered frame. BUG: 283609 FIXED-IN: 4.7.3 M +4 -0 kwin/scene_opengl_glx.cpp http://commits.kde.org/kde-workspace/cab2fee5c934ade31d457d470b042b578f74b9d8 Git commit 1a0514f3ef37dcd6c8f0e1cf633e9cea7596e790 by Martin Gräßlin. Committed on 15/10/2011 at 09:47. Pushed by graesslin into branch 'master'. Ensure that always one shader is on the ShaderStack with GL2 This brings some consistency with GLES2 where also one shader is always on the stack and allows to use the test whether a shader is bound to see if the GL2 code path is used. This fixes an issue with cover/flip switch which tested for a bound shader before the shader was pushed in multi screen setups. As well it should bring some improvements as the simple screen shader is not unbound and rebound in each rendered frame. BUG: 283609 FIXED-IN: 4.7.3 M +4 -0 kwin/scene_opengl_glx.cpp http://commits.kde.org/kde-workspace/1a0514f3ef37dcd6c8f0e1cf633e9cea7596e790 |