Bug 1120911 - radeon unreliable when returning from suspend in 3.15.x kernel
Summary: radeon unreliable when returning from suspend in 3.15.x kernel
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati
Version: 20
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: X/OpenGL Maintenance List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2014-07-18 01:33 UTC by Darryl Bond
Modified: 2015-06-29 21:37 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2015-06-29 21:37:56 UTC

Attachments (Terms of Use)

Description Darryl Bond 2014-07-18 01:33:24 UTC
Description of problem: AMD E350 APU unreliable when returning from suspend.
If dual screen attached and running X, the second monitor stays black after resume but xrandr shows the monitor present. 
If the machine is suspended again, the computer does not return from the second suspend. Light changes from blinking to solid but does not appear to wake. This occurs if dual screen or single.

If the suspend is initiated from a console, either by pm-suspend or systemctl suspend then both screens will return reliably.

Version-Release number of selected component (if applicable):
Fedora 20 - Issue started with 3.15.3 ie regression from 3.14.9. Issue still there with 3.15.5
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 6310]

How reproducible:

Steps to Reproduce:
1. From Mate desktop, initiate a suspend (menu, pm-suspend or systemctl suspend)
2. Wake computer (note second display stays black)
3. Suspend again
4. Wake computer

Actual results:
Power led changes from blinking to solid
Screens stay black from second suspend. Changing console (Alt-F2) does not display.
Computer does not respond to pings.

Expected results:
Computer wakes from suspend correctly as it did with 3.14.9

Additional info:
The computer is a thin client with no ability to look at logs once it fails. Other hardware (ie Intel) using the same rootfs image does not exhibit the fault

Comment 1 Darryl Bond 2014-09-15 22:18:55 UTC
More information:
Still same behavior with 3.16.2.

If switched to a second console and systemctl suspend is issued.
The second display comes back after awakening in tty2. 
If Alt F1 to X display, the second goes black in X and Alt F2 console.

Comment 2 Fedora End Of Life 2015-05-29 12:24:09 UTC
This message is a reminder that Fedora 20 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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Comment 3 Fedora End Of Life 2015-06-29 21:37:56 UTC
Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is
no longer maintained, which means that it will not receive any further
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