[Bug 41561] [r600 KMS] Hotplug detect does not work for HDMI monitor on Fusion E-350 board

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Oct 7 09:26:08 PDT 2011


--- Comment #3 from Simon Farnsworth <simon.farnsworth at onelan.co.uk> 2011-10-07 09:26:08 PDT ---
So, I think I see the proximate cause of the bug, but not the reason for it:

In radeon_dvi_detect at radeon_connectors.c:962, I see:

    if (!force) {
        ret = connector->status;
        goto out;

A HPD interrupt causes output_poll_execute at drm_crtc_helper.c:897 to execute 
       connector->status = connector->funcs->detect(connector, false); as a
result, I cannot see how a hotplug interrupt will ever result in a connector
state changing.

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