<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - AMD 7470m When VGA plugged into laptop, only one monitor working at a time" href="https://bugs.freedesktop.org/show_bug.cgi?id=99784#c17">Comment # 17</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - AMD 7470m When VGA plugged into laptop, only one monitor working at a time" href="https://bugs.freedesktop.org/show_bug.cgi?id=99784">bug 99784</a> from <a class="email" href="mailto:lazanet96@gmail.com" title="lazanet96@gmail.com">lazanet96@gmail.com</a> <pre>Created <a href="attachment.cgi?id=136058" name="attach_136058" title="Workaround (Ubuntu 17.10 DRM 2.50.0 / 4.13.0-19-generic, LLVM 5.0.0)">attachment 136058</a> <a href="attachment.cgi?id=136058&action=edit" title="Workaround (Ubuntu 17.10 DRM 2.50.0 / 4.13.0-19-generic, LLVM 5.0.0)">[details]</a> Workaround (Ubuntu 17.10 DRM 2.50.0 / 4.13.0-19-generic, LLVM 5.0.0) After testing new version of kernel on Ubuntu 17.10 installation (wayland + systemd) I discovered by chance that after suspend and unsuspend (systemctl suspend), internal monitor starts displaying image and everything works (for the first time with radeon driver). So as a workaround I used /etc/rc.local compatibility to trigger suspend after appropriate ring level is initialized during boot(sudo chmod +x /etc/rc.local is also required). I tested same method with 14.04 LTS with no success (so I don't know exactly what upgrade made it work).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>