<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [Topaz] Regression introduces in 4.8-rc3" href="https://bugs.freedesktop.org/show_bug.cgi?id=98505#c14">Comment # 14</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [Topaz] Regression introduces in 4.8-rc3" href="https://bugs.freedesktop.org/show_bug.cgi?id=98505">bug 98505</a> from <a class="email" href="mailto:peter@lekensteyn.nl" title="Peter Wu <peter@lekensteyn.nl>"> Peter Wu</a> <pre>(In reply to Alex Deucher from <a href="show_bug.cgi?id=98505#c12">comment #12</a>) [..] > > Lowering the minumum from 2015 to 2014 should work for nouveau: > > <a href="https://lists.freedesktop.org/archives/nouveau/2016-July/025619.html">https://lists.freedesktop.org/archives/nouveau/2016-July/025619.html</a> > > > > For further clarify on your research, the current hybrid graphics spec > requires no connectors on the dGPU and hence no audio devices. For devices > with connectors on the dGPU, they should use the older vendor specific > methods and PR3 should not be exposed. The list was mentioned because of the BIOS dates and whether _PR3 is used. The Windows 8 requirements state that the discrete GPU is render-only[0], but the Win10 reqs have no such requirement[1]. (Are these the same specs you had in mind? If not, could you share the right one?) On my new hybrid nvidia laptop, there are actually DP/HDMI ports to the dGPU (HDMI with audio). [0]: <a href="https://msdn.microsoft.com/en-us/library/windows/hardware/dn265510(v=vs.85).aspx">https://msdn.microsoft.com/en-us/library/windows/hardware/dn265510(v=vs.85).aspx</a> [1]: <a href="https://msdn.microsoft.com/en-us/windows/hardware/commercialize/design/compatibility/systems#systemfundamentalsgraphicshybridgraphicsmultigpu">https://msdn.microsoft.com/en-us/windows/hardware/commercialize/design/compatibility/systems#systemfundamentalsgraphicshybridgraphicsmultigpu</a> > > You can try to ask Mika, see v4.7-rc2-3-g9d26d3a. Maybe the presence of a > > power resource (_PR3 or flags.power_resources) can be used as a hint whether > > to enable port PM. > > Yes, the presence of _PR3 would be a great way to determine when to enable > it. Have you been working on this or should I have a look?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>