[Bug 46287] [R600] DVI monitor fails to resume after DPMS off

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Aug 15 11:28:11 PDT 2012


--- Comment #1 from Charles R. Anderson <cra at wpi.edu> 2012-08-15 18:28:11 UTC ---
I'm having similar symptoms on an ATI FirePro 2460, 4 miniDP connectors, 2 DP
monitors and 2 mDP->DVI adapters w/DVI monitors attached.  DisplayPort-0
connected via one of the mDP->DVI adapters fails to resume after suspend, but
the other three monitors come back fine.  Sometimes it is DisplayPort-3
connected to the other mDP->DVI adapter that doesn't come back instead.

The difference here is that no amount of LCD power off, remove/reattach DVI
cable, remove/reattach mDP->DVI adapter will make the screen wake up.  I have
to do a full system reboot.

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