Comment 11 for bug 1157614

It should probably check if the device is already added, instead of blindly re-adding. :-)

I understand the drmmode part now.

It goes wrong in 3 places at the moment:

* bugs in xorg-server
  - Fix 1: drm_device_keep_trying.patch (pushed to debian git, proposed on mailing list)
  - Fix 2: unbinding hybrid drivers doesn't work correctly at the moment, detaching is not done correctly if it has outputs and rendering (in my local tree, need to amend the correct patch)
  - Fix 3: Ignore add events for devices we already have added, instead of removing/re-adding device.

* bugs in drivers:
  - all except modesetting: drmmode_init installs some handlers, and nothing cleans them up
  - all: the drm fd is never closed, so reopening a device will always fail.

Plus perhaps some more bugs in some places, but those were the obvious ones I found so far.

I fixed xserver-xorg-video-ati in upstream git, other drivers should be fixable in a similar way.