From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 49943] radeon/drm: Hotplug udev events stop working
Date: Thu, 14 Jun 2012 22:14:51 +0000
Message-ID: <bug-49943-502-9Ld7LOFBj7@http.bugs.freedesktop.org/>
References: <bug-49943-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=49943

--- Comment #4 from Harald Judt <h.judt@gmx.at> 2012-06-14 15:14:51 PDT ---
Ok, tried again with 3.4.0 final.

First, no HDMI monitor connected:

Evergreen HDMI regs:
0x601c  0x00000000 (0)
0x6028  0x050ff012 (84930578)
0x6034  0x00000012 (18)
0x6040  0x00000000 (0)
0x604c  0x00000000 (0)
0x6058  0x00000000 (0)

Connecting HDMI monitor:

udevadm monitor --property
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[115260.630569] change  
/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0 (drm)
ACTION=change
DEVNAME=/dev/dri/card0
DEVPATH=/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0
DEVTYPE=drm_minor
HOTPLUG=1
MAJOR=226
MINOR=0
SEQNUM=1815
SUBSYSTEM=drm

UDEV  [115260.638205] change  
/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0 (drm)
ACTION=change
DEVNAME=/dev/dri/card0
DEVPATH=/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0
DEVTYPE=drm_minor
HOTPLUG=1
MAJOR=226
MINOR=0
SEQNUM=1815
SUBSYSTEM=drm
USEC_INITIALIZED=115260630528

Evergreen HDMI regs:
0x601c  0x00000000 (0)
0x6028  0x050ff012 (84930578)
0x6034  0x00000012 (18)
0x6040  0x00000000 (0)
0x604c  0x00000000 (0)
0x6058  0xff000012 (-16777198)

Disconnecting HDMI monitor:

<< No events reported by udevadm >>

Evergreen HDMI regs:
0x601c  0x00000000 (0)
0x6028  0x050ff012 (84930578)
0x6034  0x00000012 (18)
0x6040  0x00000000 (0)
0x604c  0x00000000 (0)
0x6058  0xff0ff000 (-15732736)

Nothing improved, event notification still doesn't work :-(

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