<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [snb] Driver not emitting event when unplugging enabled HDMI output" href="https://bugs.freedesktop.org/show_bug.cgi?id=58405#c19">Comment # 19</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [snb] Driver not emitting event when unplugging enabled HDMI output" href="https://bugs.freedesktop.org/show_bug.cgi?id=58405">bug 58405</a> from <a class="email" href="mailto:afiestas@kde.org" title="Alex Fiestas <afiestas@kde.org>"> Alex Fiestas</a> <pre>I have been doing some digging to try to figure out this bug. I have found something that perhaps will help you to find where the error is. In i915_hpd_irq_setup when the encoder_list is iterated none of the encoders has HPD_SDVO_B which apparently is where my HDMI port is hooked. If I add: hotplug_en |= SDVOB_HOTPLUG_INT_EN; Then at least I can see some reaction from the drm driver in dmesg: [drm:i965_irq_handler], hotplug event received, stat 0x00008040 Then, If in: i965_irq_handler I force hotplug_trigger if (hotplug_trigger) { I get this dmesg: [drm:i965_irq_handler], not triggered [drm:i915_hotplug_work_func], running encoder hotplug functions [drm:intel_sdvo_debug_write], SDVOB: W: 0D 01 00 (SDVO_CMD_SET_ACTIVE_HOT_PLUG) [drm:intel_crt_detect], CRT not detected via hotplug [drm:gmbus_xfer], GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1) [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga [drm:intel_crt_get_edid], CRT GMBUS EDID read failed, retry using GPIO bit-banging [drm:intel_gmbus_force_bit], enabling bit-banging on i915 gmbus vga. force bit now 1 [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus vga [drm:intel_gmbus_force_bit], disabling bit-banging on i915 gmbus vga. force bit now 0 [drm:intel_crt_detect_ddc], CRT not detected via DDC:0x50 [no valid EDID found] [drm:drm_helper_hpd_irq_event], [CONNECTOR:11:VGA-1] status updated from disconnected to disconnected. Then in intel_setup_outputs I'm getting in: if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) { DRM_DEBUG_KMS("probing SDVOB\n"); found = intel_sdvo_init(dev, GEN3_SDVOB, true); found = false; if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) { DRM_DEBUG_KMS("probing HDMI on SDVOB\n"); intel_hdmi_init(dev, GEN4_HDMIB, PORT_B); } } If I force found to false, I'm getting an extra encoder with port HPD_PORT_B, but still it is not working. Any pointers? Thanks.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>