[Bug 117411] New: [radeon][HD5650][REDWOOD] radeon.dpm causing one minute boot delay

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=117411

            Bug ID: 117411
           Summary: [radeon][HD5650][REDWOOD] radeon.dpm causing one
                    minute boot delay
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.5.0
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: no.spam.to.me at ish.de
        Regression: No

Created attachment 214751
  --> https://bugzilla.kernel.org/attachment.cgi?id=214751&action=edit
Xorg log for 4.4.0 kernel

Hi there!

I'm running Debian testing with kernel 4.5.0-1-amd64.

Before this I ran Debian Jessie with 3.16.0-4-amd64.

After upgrading to testing I noticed a highly increased boot delay of roughly
one minute (that was already kernel 4.4.0).

In Xorg log I can see that there is three times a gap of about roughly 12
seconds (maybe because my card has three connectors [HDMI/LVDS/VGA]?).

When the kernel loads the radeon module there is also a long "black period".

Now I found out that by setting radeon.dpm=0 the delay is gone- together with
power management.

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