<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Open source radeon drivers not working properly with Radeon HD 8550M" href="https://bugs.freedesktop.org/show_bug.cgi?id=94708#c24">Comment # 24</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Open source radeon drivers not working properly with Radeon HD 8550M" href="https://bugs.freedesktop.org/show_bug.cgi?id=94708">bug 94708</a> from <a class="email" href="mailto:arthur.essenfelder@gmail.com" title="Arthur Hrast Essenfelder <arthur.essenfelder@gmail.com>"> Arthur Hrast Essenfelder</a> <pre>(In reply to Alex Deucher from <a href="show_bug.cgi?id=94708#c21">comment #21</a>) > Created <a href="attachment.cgi?id=123503" name="attach_123503" title="possible fix">attachment 123503</a> <a href="attachment.cgi?id=123503&action=edit" title="possible fix">[details]</a> <a href='page.cgi?id=splinter.html&bug=94708&attachment=123503'>[review]</a> [review] > possible fix > > Does the attached patch help? Sorry for taking some time to reply. I had to re-compile and re-install the kernel (never done it before, so I had to look up how to do it under Fedora). Anyways, the patch does not seem to have fix the problem. It did, however, point me to a possible cause of the problem. I've discovered that if I remove the laptop from the power source, leaving it on battery, and then plug the power cord in again, I can start applications using DRI_PRIME=1 and the GPU won't get stuck at 100% usage. If I don't force this power state change (battery -- power cord), the GPU will get stuck at 100% usage. This is true for both the original kernel-4.4.8-300.fc23.x86_64 and the patched version. Also, since I am running the session with radeon.dpm=1, the GPU is not heating up and the fan is running at normal speed. If you need, I can upload the dmesg of these tests. Again, hope this can help somehow. Cheers, Arthur</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>