<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - prime: black window" href="https://bugs.freedesktop.org/show_bug.cgi?id=69101#c27">Comment # 27</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - prime: black window" href="https://bugs.freedesktop.org/show_bug.cgi?id=69101">bug 69101</a> from <a class="email" href="mailto:linux776@gmail.com" title="viktor <linux776@gmail.com>"> viktor</a> <pre>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.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>