<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [hdmi retimer?] No signal after switch from HDM1 to HDM2 and return in HDM1" href="https://bugs.freedesktop.org/show_bug.cgi?id=106659#c30">Comment # 30</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [hdmi retimer?] No signal after switch from HDM1 to HDM2 and return in HDM1" href="https://bugs.freedesktop.org/show_bug.cgi?id=106659">bug 106659</a> from <a class="email" href="mailto:stefano.ruzzon@icloud.com" title="fatez <stefano.ruzzon@icloud.com>"> fatez</a> <pre>(In reply to Imre Deak from <a href="show_bug.cgi?id=106659#c29">comment #29</a>) > Could you please attach a dmesg log booting a current drm-tip kernel with > drm.debug=0x1e kernel parameter? The log should include all the messages > starting from bootup up to the point where you observe the error. If > necessary you can increase the log buffer size adding something like > log_buf_len=4M to the kernel parameters. latest drm-tip NucBox:~$ uname -r 4.18.0-rc4+ [26066.771837] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 5 - cnt: 0 [26066.771936] [drm:i915_hotplug_work_func] running encoder hotplug functions [26066.771964] [drm:i915_hotplug_work_func] Connector HDMI-A-1 (pin 5) received hotplug event. [26066.771978] [drm:intel_hdmi_detect] [CONNECTOR:101:HDMI-A-1] [26066.798634] [drm:do_gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0040 w(1) [26066.798641] [drm:do_gmbus_xfer] GMBUS [i915 gmbus dpb] NAK on first message, retry [26066.798815] [drm:do_gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0040 w(1) [26066.798826] [drm:drm_dp_dual_mode_detect] DP dual mode HDMI ID: (err -6) [26066.798834] [drm:drm_rgb_quant_range_selectable] CEA VCDB 0x0f [26066.798839] [drm:drm_detect_monitor_audio] Monitor has basic audio support [26067.214616] [drm:gen8_de_irq_handler] hotplug event received, stat 0x00000010, dig 0x1000181a, pins 0x00000020, long 0x00000020 [26067.214629] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 5 - cnt: 1 [26067.214716] [drm:i915_hotplug_work_func] running encoder hotplug functions [26067.214728] [drm:i915_hotplug_work_func] Connector HDMI-A-1 (pin 5) received hotplug event. [26067.214752] [drm:intel_hdmi_detect] [CONNECTOR:101:HDMI-A-1] [26067.242279] [drm:do_gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0040 w(1) [26067.242287] [drm:do_gmbus_xfer] GMBUS [i915 gmbus dpb] NAK on first message, retry [26067.242464] [drm:do_gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0040 w(1) [26067.242475] [drm:drm_dp_dual_mode_detect] DP dual mode HDMI ID: (err -6) [26067.242484] [drm:drm_rgb_quant_range_selectable] CEA VCDB 0x0f [26067.242490] [drm:drm_detect_monitor_audio] Monitor has basic audio support</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>