[Bug 104980] NULL pointer in drm_dp_mst_wait_tx_reply / hotplugging via DP MST hub causes oops

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104980

--- Comment #2 from Adam Nielsen <a.nielsen at shikadi.net> ---
Created attachment 137367
  --> https://bugs.freedesktop.org/attachment.cgi?id=137367&action=edit
drm.debug=14 dmesg

Here's the dmesg attachment.  I can't get the kernel to crash this time, but
the monitors still come up blank (and go into power saving mode) so the
relevant times are:

 - 0-85: boot, all monitors working
 - 85: switch monitors off
 - 95-106: switch monitors back on again, HDMI-1 comes back up, DP-1-1 and
DP-1-2 remain in power saving mode

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