Bug 1070078 - Regression : multiseat does not work anymore with kernel 3.13
Summary: Regression : multiseat does not work anymore with kernel 3.13
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati
Version: 20
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: X/OpenGL Maintenance List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-02-26 08:26 UTC by Frederic Grelot
Modified: 2015-06-29 19:06 UTC (History)
9 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-06-29 19:06:42 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)
Xorg.0.log (working session) (66.04 KB, text/x-log)
2014-02-26 08:37 UTC, Frederic Grelot
no flags Details
/var/log/gdm/:0.log (working session) (60.72 KB, text/x-log)
2014-02-26 08:38 UTC, Frederic Grelot
no flags Details
Xorg.1.log (failing session) (6.86 KB, text/x-log)
2014-02-26 08:38 UTC, Frederic Grelot
no flags Details
/var/log/gdm/:1.log (failing session) (4.79 KB, text/x-log)
2014-02-26 08:39 UTC, Frederic Grelot
no flags Details
bootup journalctl (269.85 KB, text/x-log)
2014-02-26 08:42 UTC, Frederic Grelot
no flags Details

Description Frederic Grelot 2014-02-26 08:26:31 UTC
Description of problem:
When booting with kernel 3.13.3-201, multi-seat does not work anymore.
The primary seat opens up correctly.
The secondary screen is blank (the display stays in "eco" mode waiting for a signal).
Nothing particular appears in journalctl.
Reverting to previous version (3.12.10-300) works
I tried with both systemd 208-14 (from update-testing) and 208-9

Version-Release number of selected component (if applicable):
yum info kernel :
>Name        : kernel
>Arch        : x86_64
>Version     : 3.13.3
>Release     : 201.fc20

Working version :
yum info kernel :
>Name        : kernel
>Arch        : x86_64
>Version     : 3.12.10
>Release     : 300.fc20



How reproducible:
Always

Steps to Reproduce:
1. set up a multiseat configuration, under kernel 3.12
2. update kernel to 3.13

Actual results:
3. the secondary screen does not start


Expected results:
3. the secondary screen should start with gdm and login screen


Additional info:
# rpm -qa | egrep "(systemd|gdm)"
systemd-libs-208-14.fc20.x86_64
pulseaudio-gdm-hooks-4.0-9.gitf81e3.fc20.x86_64
systemd-python-208-14.fc20.x86_64
gdm-libs-3.10.0.1-1.fc20.x86_64
systemd-208-14.fc20.x86_64
gdm-3.10.0.1-1.fc20.x86_64
systemd-devel-208-14.fc20.x86_64
systemd-libs-208-14.fc20.i686

"ps aux | grep X" or "ps aux | grep gdm" does not return anything related to the secondary screen.
I didn't try to get Xorg.log, I will soon.

I have opened another bug regarding systemd/multiseat, the problems may be related :
https://bugzilla.redhat.com/show_bug.cgi?id=1052747

Frédéric.

Comment 1 Frederic Grelot 2014-02-26 08:37:35 UTC
Created attachment 867849 [details]
Xorg.0.log (working session)

this is the Xorg log of the working seat (seat 0)

Comment 2 Frederic Grelot 2014-02-26 08:38:10 UTC
Created attachment 867850 [details]
/var/log/gdm/:0.log (working session)

Comment 3 Frederic Grelot 2014-02-26 08:38:35 UTC
Created attachment 867851 [details]
Xorg.1.log (failing session)

Comment 4 Frederic Grelot 2014-02-26 08:39:00 UTC
Created attachment 867852 [details]
/var/log/gdm/:1.log (failing session)

Comment 5 Frederic Grelot 2014-02-26 08:42:54 UTC
Created attachment 867854 [details]
bootup journalctl

Comment 6 Frederic Grelot 2014-02-26 08:45:53 UTC
I did not see that kernel 3.13.4-200.fc20.x86_64 appeared in the repository before posting the bug. So I updated my kernel and did my homework : it still fails.
This time, I fetched the logs from Xorg, gdm and journalctl.

As you can see, gdm does not detect any screen for seat1, and thus does not start...
Of course, there are several other similar logs (:2, :3....) since Xorg/gdm tries to start several times.

FYI, I tried to delete the seat and recreate it with loginctl : in normal case, it should dynamically popup GDM on the newly created screen, but it didn't.

Hope this'll help!

Frédéric.

Comment 7 Frederic Grelot 2014-03-06 11:53:18 UTC
Still no change with kernel-3.13.5-202.fc20 : anyone had time to look at this?
Maybe I should change the package to systemd?

Comment 8 Frederic Grelot 2014-03-12 12:07:36 UTC
I tried a few things with kernel 3.13.6-200.fc20.x86_64

The main difference that I see it that, with this kernel, I have the following lines in Xorg.O.log (the working display) :
[    21.469] (==) Matched ati as autoconfigured driver 0
[    21.469] (==) Matched ati as autoconfigured driver 1
[    21.469] (==) Matched modesetting as autoconfigured driver 2
[    21.469] (==) Matched fbdev as autoconfigured driver 3
[    21.469] (==) Matched vesa as autoconfigured driver 4

While in Xorg.1.log (failing display), I only get :
[    21.033] (==) Matched modesetting as autoconfigured driver 0
[    21.033] (==) Matched fbdev as autoconfigured driver 1
[    21.033] (==) Matched vesa as autoconfigured driver 2

Using kernel 3.12 however, I get this in Xorg.0.log :
[    19.812] (==) Matched ati as autoconfigured driver 0
[    19.812] (==) Matched ati as autoconfigured driver 1
[    19.812] (==) Matched ati as autoconfigured driver 2
[    19.812] (==) Matched modesetting as autoconfigured driver 3
[    19.812] (==) Matched fbdev as autoconfigured driver 4
[    19.812] (==) Matched vesa as autoconfigured driver 5

As you can see, ati matches 3 times instead of 2 (I don't known why...).
And in Xorg.1.log, I get the expected :
[    19.809] (==) Matched ati as autoconfigured driver 0
[    19.809] (==) Matched modesetting as autoconfigured driver 1
[    19.809] (==) Matched fbdev as autoconfigured driver 2
[    19.809] (==) Matched vesa as autoconfigured driver 3


In every cases (3.12 and 3.13), I also get the following lines in Xorg.0.log :
[    19.803] (II) xfree86: Adding drm device (/dev/dri/card0)
[    19.804] (II) xfree86: Adding drm device (/dev/dri/card1)
[    19.810] (--) PCI:*(0:1:0:0) 1002:6758:174b:e194 rev 0, Mem @ 0xc0000000/268435456, 0xfea20000/131072, I/O @ 0x0000e000/256, BIOS @ 0x????????/131072
[    19.810] (--) PCI: (0:5:0:0) 1002:68b9:174b:e144 rev 0, Mem @ 0xb0000000/268435456, 0xfe820000/131072, I/O @ 0x0000c000/256, BIOS @ 0x????????/131072

and only the following line in Xorg.1.log :
[    19.806] (II) xfree86: Adding drm device (/dev/dri/card1)


I also tried putting a pci-stub for card1 at startup (using pci-stub.ids=XXXX:XXXX), which prevented Xorg (display :0) to try to attach to it. I then unbound the card from pci-stub, rebound it to radeon, but it did not change anything (I tried to detach/re-attach the display to seat1, and used "udevadm trigger" to ensure everything was set properly : Xorg.*.log was created as expected, but was the same as before)

So, I'm still stuck with 3.12...

Goulou.

Comment 9 Frederick Koehler 2014-03-30 17:45:25 UTC
Ditto.  Experienced the same issue after upgrading off 3.12.10-300. Have tried 3.13.5-202 and 3.13.6-200 -- no good.

When examining the difference between Xorg.1.log files (working, not working) noted this: 

<  (==) Matched ati as autoconfigured driver 0
<  (==) Matched modesetting as autoconfigured driver 1
<  (==) Matched fbdev as autoconfigured driver 2
<  (==) Matched vesa as autoconfigured driver 3
---
>  (==) Matched modesetting as autoconfigured driver 0
>  (==) Matched fbdev as autoconfigured driver 1
>  (==) Matched vesa as autoconfigured driver 2

Comment 10 Frederick Koehler 2014-04-06 22:25:26 UTC
Tried 3.13.8-200.fc20 -- now multiseat appears to work fine!

Comment 11 Fedora End Of Life 2015-05-29 11:03:56 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
and issuing updates for Fedora 20. 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 EOL if it remains open with a Fedora  'version'
of '20'.

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.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 20 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, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

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.

Comment 12 Fedora End Of Life 2015-06-29 19:06:42 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
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.


Note You need to log in before you can comment on or make changes to this bug.