Poll, no poll, poll.
While working on gswitcheroo I needed a reliable way to determine if a
monitor get’s connected to the HDMI port of the discrete card. But
monitoring the HDMI port when the corresponding discrete card is powered
off, doesn’t seem to work.\
A temporary solution is to power on the discrete card once and again, to
see if a some monitor got connected.
airlied point out, that maybe the
integrated card is able to detect connected monitors. But in the first
trial it didn’t really work.\
\
What also didn’t work, was monitoring status changes of the discrete
(radeon) card using udev (using udevadm monitor
). Time for more
investigations.
::: {#footer} [ September 23rd, 2011 9:37am ]{#timestamp} [vgaswitcheroo]{.tag} [gswitcheroo]{.tag} :::