It happened on a fresh install, and the computer is brand new so I don't have any clue about the past!
I've tested upstream kernel, and the bug seems to be fixed, but please check that I'm right: - I turn on Ubuntu, I run glxgear, I get a normal frame rate of 60fps (I guess I'm using Intel graphics) - xrandr --listproviders gives: Providers: number : 2 Provider 0: id: 0x66 cap: 0x9, Source Output, Sink Offload crtcs: 4 outputs: 3 associated providers: 0 name:Intel Provider 1: id: 0x3f cap: 0x0 crtcs: 0 outputs: 0 associated providers: 0 name:HAINAN @ pci:0000:01:00.0 Note that there were only 2 listed when I reported the bug - DRI_PRIME=1 glxgears now works, gives extremely high frame rate (6000), renders smoothly - xrandr --setprovideroffloadsink 0x3f 0x66 doesn't work anymore, now gives error: X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 34 (RRSetProviderOffloadSink) Value in failed request: 0x3f Serial number of failed request: 16 Current serial number in output stream: 17 So, even if I don't understand exactly how to switch rendering engine systemwide, I think that using DRI_PRIME=1 actually turns the GPU on and it is working fine now! I'm tagging accordingly, but please tell me if I understand correctly. ** Tags added: kernel-fixed-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1570802 Title: ATI Radeon not working: from no rendering to system freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1570802/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
