<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - R9 290 low performance in Linux 4.7" href="https://bugs.freedesktop.org/show_bug.cgi?id=97260#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - R9 290 low performance in Linux 4.7" href="https://bugs.freedesktop.org/show_bug.cgi?id=97260">bug 97260</a> from <a class="email" href="mailto:alexdeucher@gmail.com" title="Alex Deucher <alexdeucher@gmail.com>"> Alex Deucher</a> <pre>(In reply to Kai from <a href="show_bug.cgi?id=97260#c8">comment #8</a>) > (In reply to Alex Deucher from <a href="show_bug.cgi?id=97260#c6">comment #6</a>) > > Does reverting 5e031d9fe8b0741f11d49667dfc3ebf5454121fd (drm/radeon/pm: > > update current crtc info after setting the powerstate) help? > > No, it does not for me (I fetched the patch from > <<a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/patch/">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/patch/</a> > ?id=5e031d9fe8b0741f11d49667dfc3ebf5454121fd> and applied it with patch -p1 > -R < /path/to.patch). The Talos Principle is still down to 43 FPS, haven't > tested XCOM 2 or anything else. > > Btw, not sure if it can help tracking down the cause: the GPU doesn't seem > to go into its highest performance mode or at least the fan is not reaching > its highest RPM when I'm on 4.7.0 (with or without the revert). You can check by running apps and monitoring the content of /sys/kernel/debug/dri/64/radeon_pm_info Do you see it scaling up under load on the problematic kernels? Does forcing the clocks to high via sysfs work ok?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>