AMD/AMD hybrid graphics (original) (raw)

Boszormenyi Zoltan zboszor at pr.hu
Fri Feb 21 06:32:09 PST 2014

2014-02-21 14:37 keltezéssel, Alex Deucher írta:

Does the attached patch help? Alex

Yes, it helped, thank you very much. The compressed Xorg.0.log is attached as proof.

To others: the patch is against xf86-video-ati.

Two notes, though:

  1. Is it normal that "xrandr --listproviders" lists 3 providers?

[zozo at localhost ~]$ cat xrandr-providers Providers: number : 3 Provider 0: id: 0x86 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 4 outputs: 3 associated providers: 2 name:radeon Provider 1: id: 0x4f cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 0 outputs: 0 associated providers: 2 name:radeon Provider 2: id: 0x4f cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 0 outputs: 0 associated providers: 2 name:radeon

  1. I tried glxgears with and without DRI_PRIME=1 as below:

[zozo at localhost ~]$ glxgears Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. 299 frames in 5.0 seconds = 59.558 FPS [zozo at localhost ~]$ DRI_PRIME=1 glxgears Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. 5589 frames in 5.0 seconds = 1117.730 FPS 5369 frames in 5.0 seconds = 1073.715 FPS 5699 frames in 5.0 seconds = 1139.670 FPS

Obviously, it doesn't sync to the framerate with PRIME. On the other hand, nothing is displayed in the glxgears window. I have llvm 3.4-4 and Mesa 10.1-rc1 from Fedora 21 rawhide.

I will go back to plain Fedora 20 (Xorg 1.14, llvm 3.3 and Mesa 9.2.5) and try the same patch to see if there's any difference.

Best regards, Zoltán Böszörményi

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