Bug 204610

Summary: desktop sharpen effect could not be activated
Product: [Plasma] kwin Reporter: Dnp <dnpawar>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal    
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:

Description Dnp 2009-08-21 06:38:46 UTC
Version:            (using KDE 4.3.0)
OS:                Linux
Installed from:    SuSE RPMs

I enabled Sharpen desktop effect. When I apply the settings I get a 
notification in kde 4.3 notification area informing that Sharpen Desktop effect could not be activated. This happened only after I upgraded to kde 4.3, it used to work until kde 4.2.
Comment 1 Thomas Lübking 2009-08-21 07:04:28 UTC
Does your GPU/driver provide shader support?

-> enter "glxinfo | grep -i  shader" into konsole.

An empty output means a lack of shader support.
You cannot use the sharpen effect in this case (and could not - the new notice just fixed a bug in this case)
Comment 2 Dnp 2009-08-21 07:26:10 UTC
Here is the output as you requested in above comment:

OpenSuse>glxinfo | grep -i  shader
    GL_ARB_fragment_program, GL_ARB_fragment_shader, GL_ARB_half_float_pixel,
    GL_ARB_shader_objects, GL_ARB_shading_language_100, GL_ARB_shadow,
    GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader,
    GL_ATI_fragment_shader, GL_ATI_meminfo, GL_ATI_separate_stencil,
OpenSuse>

Let me know if you need any more information.
Comment 3 Martin Flöser 2009-08-21 08:51:40 UTC
can you please do a "glxinfo | grep -i version" and a "glxinfo | grep -i framebuffer". This should provide all necessary information.
Comment 4 Dnp 2009-08-21 10:06:37 UTC
Here it is:

OpenSuse>glxinfo | grep -i version
server glx version string: 1.2
client glx version string: 1.4
OpenGL version string: 2.1.7537 Release
glu version: 1.3

OpenSuse>glxinfo | grep -i framebuffer
    GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_framebuffer_blit, 
    GL_EXT_framebuffer_multisample, GL_EXT_framebuffer_object, 
OpenSuse>
Comment 5 Martin Flöser 2009-08-21 10:39:41 UTC
As it's an Ati card, it's a duplicate. The duplicate bug has some information on how you might get shader support back.

*** This bug has been marked as a duplicate of bug 173556 ***