<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Nouveau driver fails to poweron GPU on GM204 after dynamic poweroff" href="https://bugs.freedesktop.org/show_bug.cgi?id=94725#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Nouveau driver fails to poweron GPU on GM204 after dynamic poweroff" href="https://bugs.freedesktop.org/show_bug.cgi?id=94725">bug 94725</a> from <a class="email" href="mailto:gnurou@gmail.com" title="Alexandre Courbot <gnurou@gmail.com>"> Alexandre Courbot</a> <pre>Maybe these messages are pointing to the root of the problem: [ 51.608479] nouveau 0000:01:00.0: Refused to change power state, currently in D3 [ 51.683924] nouveau 0000:01:00.0: Refused to change power state, currently in D3 [ 51.700020] nouveau 0000:01:00.0: Refused to change power state, currently in D3 If the device is still in D3 when we resume it, then accessing registers would understandably result in a freeze. Devinit comes early enough in the resume chain to make this plausible. FWIW I can successfully suspend/resume (echo mem >/sys/power/state) a GTX 960, but runtime PM works slightly differently. I would like to enable runtime PM on my desktop GTX960 to repro this, but for some reason I am failing - despite loading nouveau with "modeset=2 runpm=1", I cannot see runtime PM kicking in and /sys/class/drm/card0/power/runtime_status says "unsupported". What am I doing wrong?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>