[Bug 49943] radeon/drm: Hotplug udev events stop working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=49943

--- Comment #6 from Harald Judt <h.judt at gmx.at> 2012-06-14 16:09:16 PDT ---
Yes, the computer prints these everytime I plug or unplug the HDMI monitor:

[drm:evergreen_irq_process], IH: HPD6

There are exactly 6 such messages to be found in dmesg, that would exactly
correspond to connecting and disconnecting the monitor 3 times.

More data, perhaps useful:

[drm] Connector 2:
[drm]   HDMI-A
[drm]   HPD6
[drm]   DDC: 0x6460 0x6460 0x6464 0x6464 0x6468 0x6468 0x646c 0x646c
[drm]   Encoders:
[drm]     DFP3: INTERNAL_UNIPHY1
....
[drm:evergreen_irq_set], evergreen_irq_set: sw int cp1
[drm:evergreen_irq_set], evergreen_irq_set: sw int cp2
[drm:evergreen_irq_set], evergreen_irq_set: vblank 2
[drm:evergreen_irq_set], evergreen_irq_set: vblank 3
[drm:evergreen_irq_set], evergreen_irq_set: vblank 4
[drm:evergreen_irq_set], evergreen_irq_set: vblank 5
[drm:evergreen_irq_set], evergreen_irq_set: hpd 1
[drm:evergreen_irq_set], evergreen_irq_set: hpd 3
[drm:evergreen_irq_set], evergreen_irq_set: hpd 4
[drm:evergreen_irq_set], evergreen_irq_set: hpd 5
[drm:evergreen_irq_set], evergreen_irq_set: hpd 6
[drm:drm_calc_vbltimestamp_from_scanoutpos], crtc 1 : v 5 p(2174,501)@
1339714655.238103 -> 1339714655.230668 [e 1 us, 0 rep]
[drm:evergreen_irq_process], r600_irq_process start: rptr 19552, wptr 19568
[drm:evergreen_irq_process], IH: HPD6
[drm:evergreen_irq_process], r600_irq_process start: rptr 19568, wptr 19584
[drm:evergreen_irq_process], IH: HPD6
[drm:evergreen_irq_process], r600_irq_process start: rptr 19584, wptr 19600
[drm:evergreen_irq_process], IH: HPD6
[drm:evergreen_irq_process], r600_irq_process start: rptr 19600, wptr 19616
[drm:evergreen_irq_process], IH: HPD6
[drm:evergreen_irq_process], r600_irq_process start: rptr 19616, wptr 19632
[drm:evergreen_irq_process], IH: HPD6

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