startx

[Patrick Dupre]

Hello,

I have one x session running, but I wish to open a second one
I try to open a session text mode and then
startx -- :2
but I get

xf86EnableIOPorts: failed to set IOPL, for I/O (Operation not permitted)
(II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
xinit: connection to X server lost

waiting for X server to shut down (II) Server terminated successfully (0). Closing log file

Thanks

===========================================================================
 Patrick DUPRÉ                                 | | email: [e-mail]
===========================================================================

[Roger Heflin]

The graphics hardware/software is not setup to work with 2 x-servers
running on the same graphics device, each X server expect to have
total control, and is not coded to share with a 2nd instance.

On Fri, Feb 28, 2025 at 5:56 AM Patrick Dupre via users
 wrote:
> Hello,
>
> I have one x session running, but I wish to open a second one
> I try to open a session text mode and then
> startx -- :2
> but I get
>
> xf86EnableIOPorts: failed to set IOPL, for I/O (Operation not permitted)
> (II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
> xinit: connection to X server lost
>
> waiting for X server to shut down (II) Server terminated successfully (0). Closing log file
>
> Thanks
>
> ===========================================================================
>  Patrick DUPRÉ                                 | | email: [e-mail]
> ===========================================================================
>
> --
> _______________________________________________
> users mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
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[Patrick Dupre]

If was not the case in the past.

Why a user could not open 2 x sessions?

===========================================================================
 Patrick DUPRÉ                                 | | email: [e-mail]
===========================================================================
> Sent: Friday, February 28, 2025 at 1:05 PM
> From: "Roger Heflin" 
> To: "Community support for Fedora users" 
> Cc: "Patrick Dupre" 
> Subject: Re: startx
>
> The graphics hardware/software is not setup to work with 2 x-servers
> running on the same graphics device, each X server expect to have
> total control, and is not coded to share with a 2nd instance.
>
> On Fri, Feb 28, 2025 at 5:56 AM Patrick Dupre via users
>  wrote:
> > Hello,
> >
> > I have one x session running, but I wish to open a second one
> > I try to open a session text mode and then
> > startx -- :2
> > but I get
> >
> > xf86EnableIOPorts: failed to set IOPL, for I/O (Operation not permitted)
> > (II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
> > xinit: connection to X server lost
> >
> > waiting for X server to shut down (II) Server terminated successfully (0). Closing log file
> >
> > Thanks
> >
> > ===========================================================================
> >  Patrick DUPRÉ                                 | | email: [e-mail]
> > ===========================================================================
> >
> > --
> > _______________________________________________
> > users mailing list -- [e-mail]
> > To unsubscribe send an email to [e-mail]
> > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> > List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
> > Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue

[Roger Heflin]

It is possible that some graphics hardware had virtual defined
instances in the hardware and/or multiple virtual screens.

It would depend on what the video hardware, what the video driver
supports and if the if the software used said features.

I have never seen 2 X sessions with the same graphics hardware work
successfully.    2 X sessions with separate video cards works(needs a
lot of manual config file work), one session with real hardware and
one with fully virtual hardware (vnc) works, not 2 using the same
hardware.

On Fri, Feb 28, 2025 at 6:18 AM Patrick Dupre  wrote:
> If was not the case in the past.
>
> Why a user could not open 2 x sessions?
>
> ===========================================================================
>  Patrick DUPRÉ                                 | | email: [e-mail]
> ===========================================================================
> > Sent: Friday, February 28, 2025 at 1:05 PM
> > From: "Roger Heflin" 
> > To: "Community support for Fedora users" 
> > Cc: "Patrick Dupre" 
> > Subject: Re: startx
> >
> > The graphics hardware/software is not setup to work with 2 x-servers
> > running on the same graphics device, each X server expect to have
> > total control, and is not coded to share with a 2nd instance.
> >
> > On Fri, Feb 28, 2025 at 5:56 AM Patrick Dupre via users
> >  wrote:
> > > Hello,
> > >
> > > I have one x session running, but I wish to open a second one
> > > I try to open a session text mode and then
> > > startx -- :2
> > > but I get
> > >
> > > xf86EnableIOPorts: failed to set IOPL, for I/O (Operation not permitted)
> > > (II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
> > > xinit: connection to X server lost
> > >
> > > waiting for X server to shut down (II) Server terminated successfully (0). Closing log file
> > >
> > > Thanks
> > >
> > > ===========================================================================
> > >  Patrick DUPRÉ                                 | | email: [e-mail]
> > > ===========================================================================
> > >
> > > --
> > > _______________________________________________
> > > users mailing list -- [e-mail]
> > > To unsubscribe send an email to [e-mail]
> > > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> > > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> > > List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
> > > Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue

[Fulko Hew]

On Fri, Feb 28, 2025 at 7:30 AM Roger Heflin  wrote:

... snip ...

I have never seen 2 X sessions with the same graphics hardware work
> successfully.

Now, I haven't had the need to do it in a few years, but 20 years ago,
I did it ALL the time.  But then again, it was mostly on SCO OpenDesktop.
There, I just had to say 'startx' on another VT and it would start.
On Linux, I always needed to remember the extra needed command line options.

[Felix Miata]

Fulko Hew composed on 2025-02-28 09:02 (UTC-0500):
> Roger Heflin wrote:
> I have never seen 2 X sessions with the same graphics hardware work
> > successfully.
> Now, I haven't had the need to do it in a few years, but 20 years ago,
> I did it ALL the time.  But then again, it was mostly on SCO OpenDesktop.
> There, I just had to say 'startx' on another VT and it would start.
> On Linux, I always needed to remember the extra needed command line options.

It used to work:
# inxi -S
System:
  Host: gb970 Kernel: 4.4.14-200.fc22.x86_64 arch: x86_64 bits: 64
  Console: pty pts/4 Distro: Fedora 22 (Twenty Two)
# ps -A | grep Xorg
  745 tty7     00:00:01 Xorg
 1165 tty4     00:00:00 Xorg
#
# inxi -S
System:
  Host: g5eas Kernel: 4.12.14-200.fc25.x86_64 arch: x86_64 bits: 64
  Console: pty pts/4 Distro: Fedora 25 (Twenty Five)
# ps -A | grep Xorg
  864 tty7     00:00:06 Xorg
 1275 tty6     00:00:07 Xorg
#
# inxi -S
System:
  Host: gx27b Kernel: 5.0.16-100.fc28.i686 arch: i686 bits: 32
  Console: pty pts/4 Distro: Fedora 28 (Twenty Eight)
# ps -A | grep Xorg
  765 tty7     00:00:10 Xorg
 1163 tty4     00:00:06 Xorg
#
# inxi -S
System:
  Host: gx27b Kernel: 5.3.6-100.fc29.i686 arch: i686 bits: 32
  Console: pty pts/4 Distro: Fedora 29 (Twenty Nine)
# ps -A | grep Xorg
  850 tty7     00:00:09 Xorg
 1247 tty5     00:00:08 Xorg
#
I tried with F30 & F32 and get same failure as with F41.

[Tim]

On Fri, 2025-02-28 at 12:55 +0100, Patrick Dupre via users wrote:
> I have one x session running, but I wish to open a second one
> I try to open a session text mode and then
> startx -- :2
> but I get
>
> xf86EnableIOPorts: failed to set IOPL, for I/O (Operation not permitted)
> (II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
> xinit: connection to X server lost
>
> waiting for X server to shut down (II) Server terminated successfully (0). Closing log file

And if you try it with a non-command-line way?  (Just wondering if
there's some options that you might have to set, now, that get taken
care of for you if you try doing it with another method.)

For example... On MATE, after I lock the screen with the screen-saver,
there's a box that pops up with "leave message, "switch user,"
"cancel," & "unlock," as my options to resume using my PC.

If I click on "switch user" another X session starts up and I can log
in as another user.  And I can hop between either of them with
CTRL+ALT+ F1 or F2.

It would have been nice to have not had to lock the screen first, but I
can unlock it afterwards and both sessions are unlocked as I switch
between them, until a screensaver timer kicks in (if I've set one).

[Jeffrey Walton]

On Fri, Feb 28, 2025 at 6:56 AM Patrick Dupre via users
 wrote:
> I have one x session running, but I wish to open a second one
> I try to open a session text mode and then
> startx -- :2
> but I get
>
> xf86EnableIOPorts: failed to set IOPL, for I/O (Operation not permitted)
> (II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
> xinit: connection to X server lost
>
> waiting for X server to shut down (II) Server terminated successfully (0). Closing log file

Maybe something like https://superuser.com/q/10860.

Jeff

[Michael D. Setzer II]

On 28 Feb 2025 at 12:55, Patrick Dupre via users wrote:

To:             	fedora 
Subject:        	startx
Date sent:      	Fri, 28 Feb 2025 12:55:47 +0100
Send reply to:  	Community support for Fedora users 

From:           	Patrick Dupre via users 

Copies to:      	Patrick Dupre
> Hello,
>
> I have one x session running, but I wish to open a second one
> I try to open a session text mode and then
> startx -- :2
> but I get
>
> xf86EnableIOPorts: failed to set IOPL, for I/O (Operation not permitted)
> (II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
> xinit: connection to X server lost
>
> waiting for X server to shut down (II) Server terminated successfully (0). Closing log file
>
> Thanks

I use TurboVNC and have no problems with running multiple 
sessions. Local and VNC.

cat /etc/sysconfig/tvncservers  | grep -v "#"
VNCSERVERS="79:msetzerii"
VNCSERVERARGS[79]="-wm xfce -geometry 1920x1080"

Know that tigervnc had issues if one tried to run a local session 
with Wayland and a vnc session at same time. I've always prefered 
the xvfce one, and generally use it for local and vnc.

With the TurboVNC and you can use ssh port and actually start 
new session, but I generally have vnc started at boot by above, and 
just connect to already running session.
> ===========================================================================
>  Patrick DUPRÉ                                 | | email: [e-mail]
> ===========================================================================
>
> -- 
> _______________________________________________
> users mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
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> List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
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+------------------------------------------------------------+
 Michael D. Setzer II - Computer Science Instructor (Retired)     
 mailto:[e-mail]                            
 mailto:[e-mail]
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 Guam - Where America's Day Begins                        
 G4L Disk Imaging Project maintainer 
 http://sourceforge.net/projects/g4l/
+------------------------------------------------------------+

[Dave Close]

Patrick Dupre via users wrote:
> I have one x session running, but I wish to open a second one

Works find for me with FC41 on a Dell 9020:

$ w
 13:24:55 up 7 days, 22:57,  6 users,  load average: 0.23, 0.25, 0.18
USER     TTY        LOGIN@   IDLE   JCPU   PCPU WHAT
dave     tty3      13:19    5:49   1.16s   ?    xinit /etc/X11/xinit/xinitrc --
dave     tty2      20Feb25  7days  1:08m   ?    xinit /etc/X11/xinit/xinitrc --
...

Just ran "startx" in two virtual terminals.