Bug 522176 - KMS: set mode with null fb leads to video junk
Summary: KMS: set mode with null fb leads to video junk
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati
Version: 14
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Jérôme Glisse
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
: 522690 522698 523062 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-09-09 16:44 UTC by Peter F. Patel-Schneider
Modified: 2018-04-11 12:23 UTC (History)
10 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-08-16 21:56:38 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Peter F. Patel-Schneider 2009-09-09 16:44:46 UTC
Description of problem:

Garbage on screen during boot of 9-9 test day ISO on T60p with multihead


Version-Release number of selected component (if applicable):

9-9 test day ISO

How reproducible:

Always


Steps to Reproduce:
1. Boot off 9-9 ISO CD on ThinkPad T60p with two monitors attached
2.
3.
  
Actual results:

Garbage just before X screen shows.  There are strong horizontal black lines and vertically-patterned white noise.  After a few seconds the login screen appears normally.


Expected results:

No display garbage.


Additional info:

Comment 1 Adam Williamson 2009-09-16 16:25:16 UTC
I suspect this is KMS-related, but to be sure, can you test booting with 'radeon.modeset=0' kernel parameter and see if it happens there too?

-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

Comment 2 Peter F. Patel-Schneider 2009-09-16 16:45:24 UTC
I will do so shortly.

I'm also getting similar garbage appearing when coming back from suspend in F11 (both multihead and singlehead).  I wonder whether it is related.

Comment 3 Peter F. Patel-Schneider 2009-09-16 17:00:12 UTC
Several tests using the Snap 2 ISO:

1/ Single head with radeon.modeset=0:
   Crawl comes up in low-res, as expected.
   No garbage appears.

2/ Two heads with radeon.modeset=0:
   Crawl comes up in low-res on both monitors, as expected.
   No garbage appears. 

3/ Two heads without the parameter:
   Crawl comes up in high-res on both monitors, as expected.
   About five seconds of garbage on both monitors.

4/ Single head without the parameter.
   Crawl comes up in high-res, as expected.
   No evidence of garbage.

Comment 4 Adam Williamson 2009-09-16 17:14:35 UTC
right, about what I expected. thanks.

kernel is technically the right component, but the devs prefer KMS bugs to be assigned to the X driver, it's easy to track.

-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

Comment 5 Adam Williamson 2009-09-17 00:51:25 UTC
*** Bug 522690 has been marked as a duplicate of this bug. ***

Comment 6 Adam Williamson 2009-09-17 00:52:51 UTC
*** Bug 522698 has been marked as a duplicate of this bug. ***

Comment 7 Matěj Cepl 2009-11-05 17:15:19 UTC
Since this bugzilla report was filed, there have been several major updates in various components of the Xorg system, which may have resolved this issue. Users who have experienced this problem are encouraged to upgrade their system to the latest version of their packages (at least F12Beta, but even better if the very latest versions).

Please, if you experience this problem on the up-to-date system, let us now in the comment for this bug, or whether the upgraded system works for you.

If you won't be able to reply in one month, I will have to close this bug as INSUFFICIENT_DATA. Thank you.

[This is a bulk message for all open Fedora Rawhide Xorg-related bugs. I'm adding myself to the CC list for each bug, so I'll see any comments you make after this and do my best to make sure every issue gets proper attention.]

Comment 8 Jérôme Glisse 2009-11-09 09:41:52 UTC
*** Bug 523062 has been marked as a duplicate of this bug. ***

Comment 9 Jérôme Glisse 2009-11-09 09:44:30 UTC
Issue is that we get crtc set mode with null fb which seems somethings we allow. What we need is to force to black all output when we get such request. Can you test patches against Dave's drm-next linux free ? Or do you prefer rpm ? (rpm tooks me longer to build).

Comment 10 Ondrej Zary 2009-11-09 10:03:05 UTC
I can test it on Radeon 9550 and Radeon IGP 330M/340M/350M.
I only test with live images - so I can test only rpms.

Comment 11 Martin Decky 2009-11-09 11:48:38 UTC
Just a short question: Why is it either garbage or blanking the framebuffer? Is there really no way how to make the transition smooth (keeping the image generated by Plymouth intact) even in multi-head configuration (as it worked in F11)?

I understand that there have been some changes in the KMS infrastructure since F11, but these changes should make it actually easier (since the Plymouth draws the image on each head separately now, it is not cloning the output in hardware). Even without this, if you can blank the framebuffer, you can also quickly blit the correct image there. Or am I totally mistaken?

Comment 12 Bug Zapper 2009-11-16 12:08:00 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 12 development cycle.
Changing version to '12'.

More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 13 Matěj Cepl 2010-02-26 12:25:35 UTC
Could you please reply to the previous question? If you won't reply in one month, I will have to close this bug as INSUFFICIENT_DATA. Thank you.

[Note please, that this is machine generated comment for large amount of bugs; due to some technical issues, it is possible we've missed some of the responses -- it is happens, please, just a make a comment about that; that we will see. Thank you]

Comment 14 Martin Decky 2010-02-26 12:48:09 UTC
Well, the previous question on this bug is from me in comment #11, but nobody bothered to answer. BTW: The bug is still present in an updated Fedora 12 in dual-head KMS configuration as of 2010-02-26.

Comment 15 Peter F. Patel-Schneider 2010-03-01 17:14:19 UTC
I am also still getting garbage on my T60p when an external monitor is attached (currently a Dell Trinitron monitor).   The visuals during boot are:


  Boot "Visuals"	Time after Poweron

No External Monitor
  Thinkpad Screen		3 sec
  Black Screen			5 sec
  Fedora animated "balloon"	12 sec
  Login Screen	  		28 sec
External Monitor (Dell Trinitron) 
  Thinkpad Screen		3 sec
  Black Screen			5 sec
  Fedora animated "balloon"	12 sec
  Black Screen	  		28 sec
  Garbage Screen		30 sec
  Login Screen	  		32 sec
- external monitor "resets" several times during process

This is under kernel 2.6.31.12-174.2.22.fc12.i686 and
Gnome.

Comment 16 Ondrej Zary 2010-04-20 06:32:22 UTC
This bug is still present with desktop-i386-20100418.17 on Radeon 9550.

Comment 17 Ondrej Zary 2010-04-20 19:24:20 UTC
Also present with desktop-i386-20100418.17 on Radeon X1600Pro.

Comment 18 Bug Zapper 2010-11-04 10:08:44 UTC
This message is a reminder that Fedora 12 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 12.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '12'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 12's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 12 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
bug to the applicable version.  If you are unable to change the version, 
please add a comment here and someone will do it for you.

Although we aim to fix as many bugs as possible during every release's 
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more recent Fedora release includes newer upstream software that fixes 
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The process we are following is described here: 
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Comment 19 Peter F. Patel-Schneider 2010-11-08 00:27:43 UTC
This problem is still persisting when booting from an F14 live USB stick.

If anyone cares, I can do some more investigation after I return from travelling.

Comment 20 Kyle McMartin 2010-12-09 21:49:05 UTC
Please try the latest rawhide kernel (2.6.37-rc5) and let us know if its fixed there (and upstream.)

regards, Kyle

Comment 21 Peter F. Patel-Schneider 2010-12-16 23:30:34 UTC
Is there a live "CD" for rawhide at the moment?  Alternatively, is there an easy way to install rawhide from scratch?

(I'm a bit leery of using a rawhide kernel on a production machine.)

Comment 22 Adam Williamson 2010-12-16 23:44:15 UTC
http://alt.fedoraproject.org/pub/alt/nightly-composes/desktop/

(but I'm having no problem running rawhide kernels on F14, atm. Well, it breaks sound on this particular laptop. But no permanent damage. :>)

Comment 23 Peter F. Patel-Schneider 2010-12-20 20:40:51 UTC
Much better with this kernel.

Of course, some of the debugging stuff interferes with a clean video startup, so I can't tell whether everything is completely beautiful.

I'll try to participate in the video week tests.  Hopefully there will be a non-debugging version of the kernel, etc., for that week so that the boot visuals can be completely checked out.

Comment 24 Fedora End Of Life 2012-08-16 21:56:41 UTC
This message is a notice that Fedora 14 is now at end of life. Fedora 
has stopped maintaining and issuing updates for Fedora 14. It is 
Fedora's policy to close all bug reports from releases that are no 
longer maintained.  At this time, all open bugs with a Fedora 'version'
of '14' have been closed as WONTFIX.

(Please note: Our normal process is to give advanced warning of this 
occurring, but we forgot to do that. A thousand apologies.)

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, feel free to reopen 
this bug and simply change the 'version' to a later Fedora version.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we were unable to fix it before Fedora 14 reached end of life. If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora, you are encouraged to click on 
"Clone This Bug" (top right of this page) and open it against that 
version of Fedora.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping


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