[Bug 27184] Radeon, KMS, 6.12.99: Sleeping screen doesn't wake up reliably

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27184

--- Comment #28 from Justin Stressman <jstressman at gmail.com> ---
I'm seeing the same kind of issue here on my 3 monitor setup with Dell u2412m
monitors.

The 2 DVI connected monitors wake every time, but the Display Port one rarely
wakes if the screen has been off for awhile.

I have so far been loading display properties and making a change to that
monitor (like rotating it) and hitting apply, which wakes it, and then just
reverting the changes. Powering off and back on again didn't seem to help if I
recall correctly. I'll have to try again the next time I run into the issue.

video card: [AMD/ATI] Tahiti XT [Radeon HD 7970/R9 280X]

Software:
- xorg-server 1.14.3
- mesa 9.2.1
- xf86-video-ati 7.2.0
- glamor 0.5.1
- libdrm 2.4.0 (?)

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