[Nouveau] [Bug 93887] New: Amilo Xi 3650: G96M [GeForce 9600M GT]: HDMI monitor stays black after s2ram

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93887

            Bug ID: 93887
           Summary: Amilo Xi 3650: G96M [GeForce 9600M GT]: HDMI monitor
                    stays black after s2ram
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: estellnb at elstel.org
        QA Contact: xorg-team at lists.x.org

When my machine awakes from 'systemctl suspend' my integrated LVDS display
comes up fine while an external HDMI monitor stays black with 'no signal'. As
far as tested the VGA output of my G96M will resume without a problem.
  I have tested the following kernel parameters in addition to a plain boot
with nouveau.hdmimhz=225:
* acpi_sleep=s3=bios: resumes well but HDMI stays without a signal
* acpi_sleep=s3_mode: crash on resume with total blackscreen of LVDS as well as
HDMI, a hard reset is the only way out.
* acpi_sleep=s3_bios,s3_mode: same as s3_mode

kernel version: 4.5.0-rc1-ARCH #2 SMP
nouveau version of the Arch package: 1.0.12-1

  Is there anything else I can try or do?

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