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List:       kde-bugs-dist
Subject:    [kwin] [Bug 363778] New: logout effect fails to compile shader
From:       Martin Bednar via KDE Bugzilla <bugzilla_noreply () kde ! org>
Date:       2016-06-01 8:25:49
Message-ID: bug-363778-17878 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=363778

            Bug ID: 363778
           Summary: logout effect fails to compile shader
           Product: kwin
           Version: 5.6.4
          Platform: Gentoo Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: effects-various
          Assignee: kwin-bugs-null@kde.org
          Reporter: serafean@gmail.com

When logout/shustdown/reboot is triggered for the first time since boot, 
Jun 01 10:13:41 ged kwin_x11[601]: libkwinglutils: Failed to compile fragment
shader: 
                                   "0:13(12): error: no matching function for
call to `smoothstep(int, float, float)'; candidates are:\n0:13(12): error:   
float smoothstep(float, float, float)\n0:13(12): error:    vec2
smoothstep(float, float, vec2)\n0:13(12): error:    vec3 smoothstep(float,
float, vec3)\n0:13(12): error:    vec4 smoothstep(float, float,
vec4)\n0:13(12): error:    vec2 smoothstep(vec2, vec2, vec2)\n0:13(12): error: 
  vec3 smoothstep(vec3, vec3, vec3)\n0:13(12): error:    vec4 smoothstep(vec4,
vec4, vec4)\n\x00"
Jun 01 10:13:41 ged kwin_x11[601]: libkwinglutils: Failed to link shader: 
                                   "error: program lacks a fragment
shader\n\x00"

Appears in the log.
I have no idea if it's in kwin, or in the graphics driver, so I'm starting
here.
GPU is Radeon HD6950, driver is r600g on mesa 11.2.2.
OpenGl 3.1 rendering backend.

Reproducible: Always

Steps to Reproduce:
1. Boot, login
2. Watch journal
3. click logout

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