[Bug 73181] Screen doesn't turn on after DPMS standby and subseqent suspend

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73181

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #14 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 82fa7ec352426c7e3d5210aac8ea1030232cc0f3
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Jan 6 14:30:56 2014 +0000

    uxa: Always treat DPMSModeSuspend/Standby similar to DPMSModeOff

    As we assume that Suspend, Standby alias to Off and disable the crtc
    when switching to any mode other than On, we need to also perform the
    backlight updates for Suspend,Standby prior to passing the DPMS value
    onto the kernel.

    Suggested-by: Alexander Monakov <amonakov at gmail.com>
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

commit 28a057105b6974803aee0d68c2a71f322095dfde
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Jan 6 14:37:09 2014 +0000

    uxa: Disable updating properties upon reading their values

    Backport commit e76b08cad2770015346fd4cd757de3bb3b6ff37c
    Author: Chris Wilson <chris at chris-wilson.co.uk>
    Date:   Tue Oct 15 12:46:09 2013 +0100

        sna: Disable updating properties upon reading their values

    in order to prevent random screen blanking upon return from DPMS.

    Reported-by: Alexander Monakov <amonakov at gmail.com>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73181
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

commit 0138b38dfcd933d080f86cfd33664eeb3f5558a0
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Jan 6 14:30:56 2014 +0000

    sna: Always treat DPMSModeSuspend/Standby similar to DPMSModeOff

    As we assume that Suspend, Standby alias to Off and disable the crtc
    when switching to any mode other than On, we need to also perform the
    backlight updates for Suspend,Standby prior to passing the DPMS value
    onto the kernel.

    Suggested-by: Alexander Monakov <amonakov at gmail.com>
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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