<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [BXT] [Audio] [HD-A Display] Can't light on HDMI and DP monitor if boot up without monitor connected" href="https://bugs.freedesktop.org/show_bug.cgi?id=92916#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [BXT] [Audio] [HD-A Display] Can't light on HDMI and DP monitor if boot up without monitor connected" href="https://bugs.freedesktop.org/show_bug.cgi?id=92916">bug 92916</a> from <a class="email" href="mailto:han.lu@intel.com" title="Lu, Han <han.lu@intel.com>"> Lu, Han</a> <pre>Created <a href="attachment.cgi?id=119629" name="attach_119629" title="dmesg with boot parameter drm.debug=14 and HDMI cable unconnected">attachment 119629</a> <a href="attachment.cgi?id=119629&action=edit" title="dmesg with boot parameter drm.debug=14 and HDMI cable unconnected">[details]</a> dmesg with boot parameter drm.debug=14 and HDMI cable unconnected Hi Jani, Update: With latest commit on drm-nightly repo, the issue is NOT reproduced on DP, but still reproduced on HDMI. Please find dmesg log attached. My platform is BXT-P RVP2B. Reproduce steps: 1. Disconnect HDMI cable，boot up with parameter "drm.debug=14" 2. ssh to BXT 3. run "udevadm monitor --property --tag-match=HOTPLUG", output is monitor will print the received events for: UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent 4. Plug on HDMI cable, no output on SSH interface 5. In ssh, dmesg > dmesg.log</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>