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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CI][BAT] igt@pm_rpm@module-reload - dmesg-fail - Failed assertion: c1->mmWidth == c2->mmWidth"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108511#c19">Comment # 19</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CI][BAT] igt@pm_rpm@module-reload - dmesg-fail - Failed assertion: c1->mmWidth == c2->mmWidth"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108511">bug 108511</a>
from <span class="vcard"><a class="email" href="mailto:anshuman.gupta@intel.com" title="Anshuman Gupta <anshuman.gupta@intel.com>"> <span class="fn">Anshuman Gupta</span></a>
</span></b>
<pre>This issue is only has seen with CI H/W fi-skl-6770hq, this CI H/W uses LSPCON.
<a href="https://intel-gfx-ci.01.org/hardware/fi-skl-6770hq/i915_display_info.txt">https://intel-gfx-ci.01.org/hardware/fi-skl-6770hq/i915_display_info.txt</a> tells
that DP "branch device present: yes" and device type is HDMI.
Probable root cause is due to DP-1 connector is disconnected when IGT
module-reload test probe DP1 connector modes, which resulted in mismatch of
DP1 connector physical width.
<7> [275.707285] [drm:intel_runtime_suspend [i915]] Suspending device <7>
[275.710274] [drm:intel_runtime_suspend [i915]] Device suspended
<7> [275.795462] [drm:drm_helper_probe_single_connector_modes]
[CONNECTOR:86:DP-1]
-------------------------------------------------------------------------------------------------------------------------------
<7> [276.074575] [drm:lspcon_wait_mode [i915]] Current LSPCON mode PCON
<7> [276.075459] [drm:intel_dp_read_dpcd [i915]] DPCD: 12 14 c4 01 01 15 01 81
02 01 04 01 0f 00 01
<7> [276.076282] [drm:drm_dp_read_desc] DP branch: OUI 00-1c-f8 dev-ID 175IB0
HW-rev 1.0 SW-rev 7.64 quirks 0x0000
<7> [276.077021] [drm:drm_helper_probe_single_connector_modes]
[CONNECTOR:86:DP-1] status updated from connected to disconnected
<7> [276.077024] [drm:drm_helper_probe_single_connector_modes]
[CONNECTOR:86:DP-1] disconnected
<7> [276.077204] [drm:intel_dp_detect [i915]] [CONNECTOR:86:DP-1]</pre>
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