Bug 118911 - [radeon][HD5650][REDWOOD] DPM stalls boot for 16 seconds
Summary: [radeon][HD5650][REDWOOD] DPM stalls boot for 16 seconds
Status: RESOLVED CODE_FIX
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-05-25 06:59 UTC by no.spam.to.me
Modified: 2016-06-12 21:52 UTC (History)
0 users

See Also:
Kernel Version: at least since 3.16
Subsystem:
Regression: No
Bisected commit-id:

Attachments
snipped dmesg of kernel 4.6.0 with activated dpm (6.46 KB, text/plain)
2016-05-25 06:59 UTC, no.spam.to.me 		Details
snipped dmesg of kernel 4.6.0 with deactivated dpm (3.57 KB, text/plain)
2016-05-25 07:00 UTC, no.spam.to.me 		Details
Add an attachment (proposed patch, testcase, etc.)

Description no.spam.to.me 2016-05-25 06:59:44 UTC 
Created attachment 217461 [details]
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.
Comment 1 no.spam.to.me 2016-05-25 07:00:26 UTC 
Created attachment 217471 [details]
snipped dmesg of kernel 4.6.0 with deactivated dpm
Comment 2 no.spam.to.me 2016-06-12 21:52:00 UTC 
Fixed in 4.7.0-rc2
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