https://bugs.freedesktop.org/show_bug.cgi?id=69101
--- Comment #27 from viktor <linux...@gmail.com> --- Hi guys! Fedora 22 x86_64, kernel 4.0.4-303, KDE Frameworks 5.10.0, KWin 5.3.1-2, OpenGL 3.1 backend for KWin compositor, xorg-x11-drv-ati-7.5.0-3 and xorg-x11-drv-intel-2.99.917-10.20150526 vga drivers, XOrg-xserver 1.17.1-14, the second monitor is connected to the D-SUB output of my laptop (Lenovo G570) lspci gives: 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) Subsystem: Lenovo Device 397a Kernel driver in use: i915 Kernel modules: i915 -- 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Robson CE [Radeon HD 6370M/7370M] (rev ff) Kernel driver in use: radeon Kernel modules: radeon I've already done xrandr --setprovideroffloadsink radeon Intel The problem still remains: when I run glxgears (or another OpenGL app) without DRI_PRIME=1 all seems good but with that variable I get black screen. The problem disappears when I switch to another window and back. With XRender backend for KWin all works like a charm but I don't want to use XRender because of high CPU load and overheating. -- You are receiving this mail because: You are the assignee for the bug.
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