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#1 2016-03-24 08:19:11

prash
Member
Registered: 2011-08-18
Posts: 57

[SOLVED] Virtual terminals not working after some time

The hardware is an Intel Core i5-3320M with an Intel HD Graphics 4000.  The associated drivers that I have installed are xf86-video-intel, xf86-video-fbdev, and xf86-video-vesa.

The symptoms: after using the computer (on X) for a few hours, hitting Ctrl-Alt-Fx switches me to a virtual terminal, and I can see the characters on the screen, but it's a frozen snapshot of whatever was going on a few hours ago. I first suspected it was some Steam game that was knocking out my graphics drivers, but yesterday, I tried that specifically: fresh boot, login on a VT2, login on X via SDDM, play CS:GO for a while and see if the login on VT2 is working. This wasn't the problem. I let the laptop run all night, and checked again when I woke up. Whatever was shown on VT2 last night before I left it, was frozen there now, basically the zsh prompt. Switching to other VTs should have shown me the login screen for that terminal. Instead. all I saw was the frozen snapshot of VT2.

When I hit Ctrl-Alt-F3, where I expect to see a login prompt, I can still enter my username and password on the frozen screen. It lets me login and launch other programs. I launched htop, switched back to Ctrl-Alt-F1, where my X is running, and used a task manager to confirm that htop is running. I went back with Ctrl-Alt-F3, hit 'q' and ended htop. All this is fine, but the display remains frozen to a snapshot of my VT2 command prompt.

When I switch to virtual terminals, there is nothing remarkable in my Xorg.0.log:

[ 53720.842] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 53725.873] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 53725.873] (II) intel(0): switch to mode 1600x900@60.0 on LVDS1 using pipe 0, position (0, 0), rotation normal, reflection none
[ 53726.204] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found

There is nothing remarkable in my journalctl either:

Mar 24 13:27:22 Prash6 sudo[23254]: pam_unix(sudo:session): session closed for user root
Mar 24 13:27:26 Prash6 sudo[23324]: pam_unix(sudo:session): session opened for user root by prash(uid=0)

I tried "stty sane", "stty echo" from my VTs, but to no avail. I don't know why my VTs display is freezing up, and I don't know what else to try to get it to run. The only thing that seems to fix it is a reboot.

I looked on various forums for other people who were facing similar problems, but those that had such problems seem to have had it right from bootup. And they were using ATI or Nvidia GPUs.

This is not a showstopping problem for me. I can continue to use X without issues, but it still bugs me knowing that I have an unfixed problem on my system. Any help would be appreciated.

Tested again after a fresh reboot. Neither locking the screen nor suspending affected this. I played CS:GO for a while, and now the problem has recurred, As before, the xorg log is unhelful:

[   769.267] (II) AIGLX: Suspending AIGLX clients for VT switch
[   770.262] (II) AIGLX: Resuming AIGLX clients after VT switch
[   770.262] (II) intel(0): switch to mode 1600x900@60.0 on LVDS1 using pipe 0, position (0, 0), rotation normal, reflection none
[   770.597] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[  3716.167] (II) AIGLX: Suspending AIGLX clients for VT switch
[  3729.239] (II) AIGLX: Resuming AIGLX clients after VT switch
[  3729.239] (II) intel(0): switch to mode 1600x900@60.0 on LVDS1 using pipe 0, position (0, 0), rotation normal, reflection none
[  3729.568] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found

Solution: upgrade to linux-4.5

Last edited by prash (2016-03-30 16:51:44)

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#2 2016-03-24 19:43:30

XDarkAngelX
Member
Registered: 2014-01-08
Posts: 62

Re: [SOLVED] Virtual terminals not working after some time

Having the same exact issue I have noticed in my case it happens once I pass a certain memory border about the 2 Gib and that by that time the system uses a bit of the swap.
It seem that the common things for this issue are intel Graphics  and sddm.
are you using kde with sddm ? also sadly I have no idea what is causing this strange issue.

Last edited by XDarkAngelX (2016-03-24 19:55:45)

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#3 2016-03-24 20:41:56

prash
Member
Registered: 2011-08-18
Posts: 57

Re: [SOLVED] Virtual terminals not working after some time

I have 8GB RAM, so I have not setup swap. Moreover, it's an SSD system, so swap is discouraged anyway.

I sometimes use KDE, but I'm on LXQt most of the time.

I'll boot to lightdm for my next boot and see how things go.

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#4 2016-03-25 00:09:31

respiranto
Member
Registered: 2015-05-15
Posts: 479
Website

Re: [SOLVED] Virtual terminals not working after some time

I have exactly the same issue; also Intel graphics, however no sddm, but plain startx(fce4) here.
It does not happen very frequently here, however the last time it happened, there was also a coredump of Icedove, which uses gpg (Enigmail) which might be related to this forum thread:
https://bbs.archlinux.org/viewtopic.php?id=209892

The proposed solution does not apply here, though (I do not have such lock-files).

Another thing that could be related is this passage of the journal:

Mar 18 14:53:04 rmac systemd[1]: Started Permit User Sessions.
Mar 18 14:53:04 rmac systemd[1]: Started Getty on tty1.
Mar 18 14:53:04 rmac systemd[1]: Started Getty on tty6.
Mar 18 14:53:04 rmac systemd[1]: Reached target Login Prompts.
Mar 18 14:53:04 rmac systemd[1]: Reached target Multi-User System.
Mar 18 14:53:04 rmac systemd[1]: Reached target Graphical Interface.
Mar 18 14:53:05 rmac systemd[1]: Started Rotate log files.
Mar 18 14:53:05 rmac systemd[1]: Started Verify integrity of password and group files.
Mar 18 14:53:13 rmac systemd-logind[575]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 18 14:53:18 rmac login[599]: pam_unix(login:session): session opened for user respiranto by LOGIN(uid=0)
Mar 18 14:53:18 rmac systemd[1]: Created slice User Slice of respiranto.
Mar 18 14:53:18 rmac systemd[1]: Starting User Manager for UID 1000...
Mar 18 14:53:18 rmac systemd-logind[575]: New session c1 of user respiranto.
Mar 18 14:53:18 rmac systemd[1]: Started Session c1 of user respiranto.
Mar 18 14:53:18 rmac systemd-logind[575]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 18 14:53:18 rmac systemd[618]: pam_unix(systemd-user:session): session opened for user respiranto by (uid=0)
Mar 18 14:53:18 rmac systemd[618]: Starting D-Bus User Message Bus Socket.
Mar 18 14:53:19 rmac login[599]: LOGIN ON tty6 BY respiranto
Mar 18 14:53:18 rmac systemd[618]: Reached target Paths.
Mar 18 14:53:18 rmac systemd[618]: Reached target Timers.
Mar 18 14:53:19 rmac systemd[618]: Listening on D-Bus User Message Bus Socket.
Mar 18 14:53:19 rmac systemd[618]: Reached target Sockets.
Mar 18 14:53:19 rmac systemd[618]: Reached target Basic System.
Mar 18 14:53:19 rmac systemd[618]: Reached target Default.
Mar 18 14:53:19 rmac systemd[618]: Startup finished in 622ms.
Mar 18 14:53:19 rmac systemd[1]: Started User Manager for UID 1000.
Mar 18 14:53:20 rmac systemd[1]: Started Update man-db cache.
Mar 18 14:53:23 rmac systemd[618]: Started D-Bus User Message Bus.
Mar 18 14:53:25 rmac dbus[571]: [system] Activating via systemd: service name='org.freedesktop.PolicyKit1' unit='polkit.service'
Mar 18 14:53:25 rmac systemd[1]: Starting Authorization Manager...
Mar 18 14:53:25 rmac polkitd[685]: Started polkitd version 0.113
Mar 18 14:53:25 rmac polkitd[685]: Loading rules from directory /etc/polkit-1/rules.d
Mar 18 14:53:25 rmac polkitd[685]: Loading rules from directory /usr/share/polkit-1/rules.d
Mar 18 14:53:25 rmac polkitd[685]: Finished loading, compiling and executing 1 rules
Mar 18 14:53:25 rmac dbus[571]: [system] Successfully activated service 'org.freedesktop.PolicyKit1'
Mar 18 14:53:25 rmac systemd[1]: Started Authorization Manager.
Mar 18 14:53:25 rmac polkitd[685]: Acquired the name org.freedesktop.PolicyKit1 on the system bus
Mar 18 14:53:25 rmac dbus-daemon[671]: Activating service name='org.xfce.Xfconf'
Mar 18 14:53:25 rmac dbus-daemon[671]: Successfully activated service 'org.xfce.Xfconf'
Mar 18 14:53:26 rmac kernel: irq 17: nobody cared (try booting with the "irqpoll" option)
Mar 18 14:53:26 rmac kernel: CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.4.3-1-ARCH #1
Mar 18 14:53:26 rmac kernel: Hardware name: Apple Inc. MacBookPro9,2/Mac-6F01561E16C75D06, BIOS MBP91.88Z.00D3.B0B.1506081214 06/08/2015
Mar 18 14:53:26 rmac kernel:  0000000000000086 201429cec418af2f ffff88016f283e60 ffffffff812cac81
Mar 18 14:53:26 rmac kernel:  ffff880169bdce00 ffff880169bdcea4 ffff88016f283e88 ffffffff810d29b3
Mar 18 14:53:26 rmac kernel:  ffff880169bdce00 0000000000000000 0000000000000011 ffff88016f283ec0
Mar 18 14:53:26 rmac kernel: Call Trace:
Mar 18 14:53:26 rmac kernel:  <IRQ>  [<ffffffff812cac81>] dump_stack+0x63/0x82
Mar 18 14:53:26 rmac kernel:  [<ffffffff810d29b3>] __report_bad_irq+0x33/0xc0
Mar 18 14:53:26 rmac kernel:  [<ffffffff810d2d3e>] note_interrupt+0x23e/0x280
Mar 18 14:53:26 rmac kernel:  [<ffffffff810d0002>] handle_irq_event_percpu+0xb2/0x1f0
Mar 18 14:53:26 rmac kernel:  [<ffffffff810d0179>] handle_irq_event+0x39/0x60
Mar 18 14:53:26 rmac kernel:  [<ffffffff810d3549>] handle_fasteoi_irq+0x89/0x150
Mar 18 14:53:26 rmac kernel:  [<ffffffff81019caa>] handle_irq+0x1a/0x30
Mar 18 14:53:26 rmac kernel:  [<ffffffff8159884b>] do_IRQ+0x4b/0xd0
Mar 18 14:53:26 rmac kernel:  [<ffffffff81596942>] common_interrupt+0x82/0x82
Mar 18 14:53:26 rmac kernel:  <EOI>  [<ffffffff8144b983>] ? cpuidle_enter_state+0x123/0x2d0
Mar 18 14:53:26 rmac kernel:  [<ffffffff8144b95e>] ? cpuidle_enter_state+0xfe/0x2d0
Mar 18 14:53:26 rmac kernel:  [<ffffffff8144bb67>] cpuidle_enter+0x17/0x20
Mar 18 14:53:26 rmac kernel:  [<ffffffff810b8fe2>] call_cpuidle+0x32/0x60
Mar 18 14:53:26 rmac kernel:  [<ffffffff8144bb43>] ? cpuidle_select+0x13/0x20
Mar 18 14:53:26 rmac kernel:  [<ffffffff810b92cc>] cpu_startup_entry+0x2bc/0x390
Mar 18 14:53:26 rmac kernel:  [<ffffffff8104f73b>] start_secondary+0x15b/0x190
Mar 18 14:53:26 rmac kernel: handlers:
Mar 18 14:53:26 rmac kernel: [<ffffffffa012ccb0>] sdhci_irq [sdhci] threaded [<ffffffffa012c6a0>] sdhci_thread_irq [sdhci]
Mar 18 14:53:26 rmac kernel: Disabling IRQ #17

The first thing being the failure of autovt@tty6.service, which happens already before my first login, hence before the problem, and several times afterwards. It is most probably related to the fact that I have that service enabled and use TTY6 for X.

The second thing, that might theoretically be related, is the failure of IRQ. At each boot I get such a nice message displayed, in most cases at the login prompt, using the irqpoll kernel paramter does not help.

Restarting getty@ttyX or systemd-logind did not help.

Last edited by respiranto (2016-03-25 00:11:38)

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#5 2016-03-25 08:02:16

prash
Member
Registered: 2011-08-18
Posts: 57

Re: [SOLVED] Virtual terminals not working after some time

I switched to LightDM last night, used the computer for a while and slept. When I woke up, the TTYs were still responsive.

I did not have GPG lock files either. But because you pointed at GPG, I logged in on KDE, which uses KWallet and GPG. Still, no GPG lock files.

I started CS:GO, and let the game play by itself for a while and turned it off. The TTYs were frozen.

When I looked through journalctl, I did not see any "Failed to start" or "dump_stack". I did see some error messages in journalctl, but they were related to Samba and KSysguard. I'll look into those and see where the rabbit-hole leads.

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#6 2016-03-25 20:20:12

prash
Member
Registered: 2011-08-18
Posts: 57

Re: [SOLVED] Virtual terminals not working after some time

I have to abandon even my previous suspicions. I did not start up Steam or CS:GO all day. The laptop ran for over 12 hours, and the TTYs have frozen. Neither dmesg nor journalctl have error messages related to Samba and KSysguard this time.

The only error messages I saw under journalctl were about my plugged in mobile phone not being an MTP device. (Which is fair. I have to manually turn on MTP on the phone since Android 6.0.)

Now I'm back to having no clues and no suspicions.

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#7 2016-03-25 22:49:27

XDarkAngelX
Member
Registered: 2014-01-08
Posts: 62

Re: [SOLVED] Virtual terminals not working after some time

So I have done some testing and got some interesting results:
first I tried running kde with ligthdm see if it makes a diffrenece but got the same issue.
than I have tried lightdm and the awesome WM and still got the same issue.
This left suspicios of the intel drivers and mesa lib which is the only things I havn't changed in all of the tests.
So I changed the configuration so my system will run only on the nvidia card and got no issue I ran Civ 5 (which I used to test issue as it use enought RAM to make it happen) changed to tty2 and it wasn't frozen!(also the swap usage seem to be unrelated)
This leads me to believe the source of the problem is something with the intel drivers or the mesa library which cause the ttys display to freeze.

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#8 2016-03-26 15:21:55

prash
Member
Registered: 2011-08-18
Posts: 57

Re: [SOLVED] Virtual terminals not working after some time

@XDarkAngelX  and @respiranto, Which Intel graphics chipsets do you have?

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#9 2016-03-26 16:27:08

XDarkAngelX
Member
Registered: 2014-01-08
Posts: 62

Re: [SOLVED] Virtual terminals not working after some time

I have i5-4210M and it has Intel HD graphics 4600

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#10 2016-03-26 16:40:14

respiranto
Member
Registered: 2015-05-15
Posts: 479
Website

Re: [SOLVED] Virtual terminals not working after some time

$ lspci -nn | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)

-> GPU: Intel HD Graphics 4000

CPU: i5-3210M (quad-core)

Last edited by respiranto (2016-03-26 16:57:17)

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#11 2016-03-27 18:22:33

prash
Member
Registered: 2011-08-18
Posts: 57

Re: [SOLVED] Virtual terminals not working after some time

I borrowed linux-4.5-1, linux-firmware-20160315.deb1d83-1, and linux-headers-4.5-1 from [testing] yesterday and have been using it for a day now. I rebooted once in between for an unrelated reason. So far the TTYs have not frozen. If the problem does not re-appear in the next couple of days, I'll mark the question [solved]. But I'm telling you guys in advance, in case you want to test it, to see if it fixes the problem for you too.

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#12 2016-03-27 22:58:58

respiranto
Member
Registered: 2015-05-15
Posts: 479
Website

Re: [SOLVED] Virtual terminals not working after some time

I am running 4.4.5-1 and have not noticed the issue since March 18.
However, as I said it did not happen frequently anyway.
Might be related to the fact that I usually do not demand much from my GPU.

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#13 2016-03-28 16:52:01

respiranto
Member
Registered: 2015-05-15
Posts: 479
Website

Re: [SOLVED] Virtual terminals not working after some time

Well, now it just reappeared.

The journal right afterwards:

$ journalctl -xe --nopager | tail -n <n>
Mar 28 18:10:03 rmac login[2002]: LOGIN ON tty3 BY respiranto
Mar 28 18:14:11 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 28 18:23:13 rmac systemd[1]: Started Getty on tty4.
-- Subject: Unit getty@tty4.service has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit getty@tty4.service has finished starting up.
-- 
-- The start-up result is done.
Mar 28 18:23:14 rmac systemd[1]: Started Getty on tty5.
-- Subject: Unit getty@tty5.service has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit getty@tty5.service has finished starting up.
-- 
-- The start-up result is done.
Mar 28 18:23:18 rmac login[9354]: pam_unix(login:session): session opened for user root by LOGIN(uid=0)
Mar 28 18:23:18 rmac systemd-logind[565]: New session c5 of user root.
-- Subject: A new session c5 has been created for user root
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- Documentation: http://www.freedesktop.org/wiki/Software/systemd/multiseat
-- 
-- A new session with the ID c5 has been created for the user root.
-- 
-- The leading process of the session is 9354.
Mar 28 18:23:18 rmac systemd[1]: Started Session c5 of user root.
-- Subject: Unit session-c5.scope has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit session-c5.scope has finished starting up.
-- 
-- The start-up result is done.
Mar 28 18:23:18 rmac login[9354]: ROOT LOGIN ON tty4
Mar 28 18:23:35 rmac login[9354]: pam_unix(login:session): session closed for user root
Mar 28 18:23:35 rmac systemd[1]: getty@tty4.service: Service has no hold-off time, scheduling restart.
Mar 28 18:23:35 rmac systemd[1]: Stopped Getty on tty4.
-- Subject: Unit getty@tty4.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit getty@tty4.service has finished shutting down.
Mar 28 18:23:35 rmac systemd[1]: Started Getty on tty4.
-- Subject: Unit getty@tty4.service has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit getty@tty4.service has finished starting up.
-- 
-- The start-up result is done.
Mar 28 18:23:35 rmac systemd-logind[565]: Removed session c5.
-- Subject: Session c5 has been terminated
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- Documentation: http://www.freedesktop.org/wiki/Software/systemd/multiseat
-- 
-- A session with the ID c5 has been terminated.
Mar 28 18:31:28 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 28 18:33:45 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 28 18:34:22 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 28 18:34:27 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 28 18:34:32 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 28 18:34:44 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 28 18:34:59 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.

Everything I did, was to use a few graphical programs as usual, to run `pacman -Syu' and using the TTYs a little more. A few SSH sessions were open.
Before, I ran my custom backup script, however it terminated before the incident.

The `Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.' which is print in red, apparently always happens when changing from TTY[^6] to TTY6, where X runs. Actually I have never enabled autovt@tty6.service, but getty@tty6.service .
`systemctl disable autovt@tty6' results in disabling, i.e. removing the symlink to getty@tty6.service, not autovt@tty6.service .

I don't know whether this is related, but that appears like a bug to me.
Does somebody of you by chance have similar messages?


ADDITIONAL:
Just to confirm you have the same symptoms:
When changing to TTY[^6], i.e. a TTY not running X, I see the static picture of always the same TTY, regardless the TTY I switch to (I think it's TTY4, but I'm not sure; it's probably the one that was last used).

UPDATE:
The journal a little later:

Mar 28 18:36:59 rmac dbus[562]: [system] Reloaded configuration
Mar 28 18:36:59 rmac dbus[562]: [system] Reloaded configuration
Mar 28 18:37:00 rmac dbus-daemon[759]: Reloaded configuration
Mar 28 18:37:00 rmac dbus-daemon[759]: Reloaded configuration
Mar 28 18:44:19 rmac su[9851]: (to root) respiranto on pts/2
Mar 28 18:44:19 rmac su[9851]: pam_unix(su-l:session): session opened for user root by (uid=1000)
Mar 28 18:44:38 rmac polkitd[620]: Registered Authentication Agent for unix-process:9861:631790 (system bus name :1.20 [/usr/bin/pkttyagent --notify-fd 4 --fallback], object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Mar 28 18:44:38 rmac systemd[1]: Reloading.
Mar 28 18:44:39 rmac polkitd[620]: Unregistered Authentication Agent for unix-process:9861:631790 (system bus name :1.20, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
Mar 28 18:52:05 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 28 18:54:41 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.
Mar 28 18:57:18 rmac systemd-logind[565]: Failed to start autovt@tty6.service: Unit autovt@tty6.service not found.

Could the polkit error be related?

Last edited by respiranto (2016-03-28 17:20:44)

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#14 2016-03-28 17:13:18

prash
Member
Registered: 2011-08-18
Posts: 57

Re: [SOLVED] Virtual terminals not working after some time

It's been nearly 2 days since I've been running linux-4.5 and the problem has not recurred. But even when I had the problem, my journalctl messages looked nothing like yours. I've had autovt failures, but I wasn't aware of them until I looked now. But then again, the reason for the failure was different from yours:

-- Unit sddm.service has finished shutting down.
Mar 26 09:09:15 Prash6 systemd-logind[400]: Failed to start autovt@tty2.service: Transport endpoint is not connected
Mar 26 09:09:56 Prash6 systemd[1]: session-c2.scope: Stopping timed out. Killing.
Mar 26 09:09:56 Prash6 systemd[1]: Stopped Session c2 of user prash.
-- Subject: Unit session-c2.scope has finished shutting down

These are the latest autovt errors that I have in my logs. I have other autovt errors just like this one, all generated when I do Ctrl-Alt-Del too many times to skip a hung reboot. (Because of my Samba and NFS shares.)

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#15 2016-03-28 17:20:31

respiranto
Member
Registered: 2015-05-15
Posts: 479
Website

Re: [SOLVED] Virtual terminals not working after some time

Thanks for the information, I'll wait then for linux-4.5 and hope for the best.

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