[Bug 118911] New: [radeon][HD5650][REDWOOD] DPM stalls boot for 16 seconds

* [Bug 118911] New: [radeon][HD5650][REDWOOD] DPM stalls boot for 16 seconds
@ 2016-05-25  6:59 bugzilla-daemon
  2016-05-25  7:00 ` [Bug 118911] " bugzilla-daemon
  2016-06-12 21:52 ` bugzilla-daemon
  0 siblings, 2 replies; 3+ messages in thread
From: bugzilla-daemon @ 2016-05-25  6:59 UTC (permalink / raw)
  To: dri-devel

https://bugzilla.kernel.org/show_bug.cgi?id=118911

            Bug ID: 118911
           Summary: [radeon][HD5650][REDWOOD] DPM stalls boot for 16
                    seconds
           Product: Drivers
           Version: 2.5
    Kernel Version: at least since 3.16
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: no.spam.to.me@ish.de
        Regression: No

Created attachment 217461
  --> https://bugzilla.kernel.org/attachment.cgi?id=217461&action=edit
snipped dmesg of kernel 4.6.0 with activated dpm

Hello!

With activated dpm there is a 16 second delay when booting:

[   18.308002] fbcon: radeondrmfb (fb0) is primary device
[   34.553785] Console: switching to colour frame buffer device 170x48

Nevertheless dpm is working if I check radeon_pm_info with different loads.

If I deactivate dpm with kernel parameter radeon.dpm=0 there is no stall:

[   17.538367] fbcon: radeondrmfb (fb0) is primary device
[   18.019293] Console: switching to colour frame buffer device 170x48

Don't know how to debug that.

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