[Bug 104767] [CI][BAT] igt at pm_rpm@(module-reload|dpm_resources_equal) - dmesg-fail / fail - Failed assertion: c1->count_modes == c2->count_modes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104767

--- Comment #7 from Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com> ---
(In reply to Martin Peres from comment #6)
> Also seen on APL:
> https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_1980/fi-apl-guc/
> igt at pm_rpm@module-reload.html
> 
> Starting subtest: module-reload
> (pm_rpm:3480) CRITICAL: Test assertion failure function
> assert_drm_connectors_equal, file ../tests/pm_rpm.c:512:
> (pm_rpm:3480) CRITICAL: Failed assertion: c1->count_modes == c2->count_modes
> (pm_rpm:3480) CRITICAL: error: 45 != 32
> Subtest module-reload failed.

There is a variation in the number of modes that are getting pruned. The driver
decides the max supported dot clock based on source and sink capabilities;
given that the source side caps. do not change, it most likely is the
drm_dp_downstream_max_clock() from the lspcon device that is changing.

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