Same for me on Ubuntu 16.0.1. I get a black screen by using DRI_PRIME=1 glxgears but the frame is highen the Intel card.
Is it normal that xrandr --listproviders returns 2 providers for the AMD/ATI card? Providers: number : 3 Provider 0: id: 0x6b cap: 0x9, Source Output, Sink Offload crtcs: 3 outputs: 5 associated providers: 2 name:Intel Provider 1: id: 0x43 cap: 0x6, Sink Output, Source Offload crtcs: 4 outputs: 0 associated providers: 2 name:CAICOS @ pci:0000:01:00.0 Provider 2: id: 0x43 cap: 0x6, Sink Output, Source Offload crtcs: 4 outputs: 0 associated providers: 2 name:CAICOS @ pci:0000:01:00.0 lspci | grep -E 'VGA|Display' 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series] (rev ff) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1430888 Title: DRI_PRIME with radeon/intel windows do not draw To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1430888/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
