Arch Linux

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

[KDE] unable to start session

Hi all,
i'm struggling because i'm not able to login anymore to my system.

everything seems to work until i put the password. pressing enter, it seems to load modules but before showing the last kde "jumping icon"...it freezes! What does it mean?

I tried to investigate and i accessed to terminal using crtl + alt+ f1 and trying to restart kdm it failed. I don't know why.

Can you please give some suggestion on how to proceed?

The last thing i did before it was the upgrade of the kernel and some other things

Thanks

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

Re: [KDE] unable to start session

looking in /var/log/errors.log i get those messages:

Mar 26 22:07:46 localhost smbd[1366]: [2011/03/26 22:07:46.189631,  0] printing/print_cups.c:108(cups_connect)
Mar 26 22:07:46 localhost smbd[1366]:   Unable to connect to CUPS server /var/run/cups/cups.sock:631 - No such file or directory
Mar 26 22:07:46 localhost smbd[1367]: [2011/03/26 22:07:46.202006,  0] printing/print_cups.c:108(cups_connect)
Mar 26 22:07:46 localhost smbd[1367]:   Unable to connect to CUPS server /var/run/cups/cups.sock:631 - No such file or directory
Mar 26 22:07:46 localhost nmbd[1371]: [2011/03/26 22:07:46.632132,  0] nmbd/nmbd_subnetdb.c:241(create_subnets)
Mar 26 22:07:46 localhost nmbd[1371]:   create_subnets: No local IPv4 non-loopback interfaces !
Mar 26 22:07:46 localhost nmbd[1371]: [2011/03/26 22:07:46.632527,  0] nmbd/nmbd_subnetdb.c:242(create_subnets)
Mar 26 22:07:46 localhost nmbd[1371]:   create_subnets: Waiting for an interface to appear ...
Mar 26 22:07:46 localhost smbd[1368]: [2011/03/26 22:07:46.690552,  0] smbd/server.c:500(smbd_open_one_socket)
Mar 26 22:07:46 localhost smbd[1368]:   smbd_open_once_socket: open_socket_in: Address already in use
Mar 26 22:07:46 localhost smbd[1368]: [2011/03/26 22:07:46.690805,  0] smbd/server.c:500(smbd_open_one_socket)
Mar 26 22:07:46 localhost smbd[1368]:   smbd_open_once_socket: open_socket_in: Address already in use
Mar 26 22:07:55 localhost dhcpcd[1394]: dhcpcd not running
Mar 26 22:07:55 localhost dhcpcd[1401]: dhcpcd not running
Mar 26 22:08:10 localhost kdm_greet[1427]: Cannot load /usr/share/apps/kdm/faces/.default.face: No such file or directory
Mar 26 22:08:24 localhost nmbd[1371]: [2011/03/26 22:08:24.690235,  0] nmbd/nmbd_become_lmb.c:395(become_local_master_stage2)
Mar 26 22:08:24 localhost nmbd[1371]:   *****
Mar 26 22:08:24 localhost nmbd[1371]:   
Mar 26 22:08:24 localhost nmbd[1371]:   Samba name server SPLINTER is now a local master browser for workgroup VIRUSNET on subnet 192.168.0.2
Mar 26 22:08:24 localhost nmbd[1371]:   
Mar 26 22:08:24 localhost nmbd[1371]:   *****

Do any of them can cause this issue?

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

Re: [KDE] unable to start session

in kdm.log there are those weird messages:

klauncher(1434) kdemain: No DBUS session-bus found. Check if you have started the DBUS server. 
kdeinit4: Communication error with launcher. Exiting!
kdmgreet(1427)/kdecore (K*TimeZone*): KSystemTimeZones: ktimezoned initialize() D-Bus call failed:  "Not connected to D-Bus server" 

does it refer to dbus daemon? it is installed and is before other deamons. I cannot understand what it means.

off220

Member

Registered: 2010-04-01

Posts: 92

Re: [KDE] unable to start session

almost same here.  after reboot it loads ok but slow.

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

Re: [KDE] unable to start session

almost same here.  after reboot it loads ok but slow.

the problem is that i'm not able to access the system through kde!!! i can only access to terminal mode!

Pierre_Buard

Member

From: France

Registered: 2009-03-02

Posts: 5

Website

Re: [KDE] unable to start session

Did you try deleting the kdecache-* files in /var/tmp?
I just had the same problem after upgrading KDE and this has solved it!

edit: I spoke too soon. In one of my attempt I tried KDE failsafe mode and was stuck in it, disabling compositing in the process.
In "regular" KDE, k_ibou solution was necessary to get passed the splashscreen.

Last edited by Pierre_Buard (2011-03-26 23:32:04)

k_ibou

Member

From: Costa Rica

Registered: 2009-06-09

Posts: 101

Re: [KDE] unable to start session

Hi I was exactly the same problem. It looks like that has something to do with kwin compositing.

I fixed doing this:

vim .kd4/share/config/kwinrc

There you should do this:

[compositing]
Enable=false

then reboot and you should enter your session without a problem. Of course you will not have desktop effects.

My question is, Is a KDE problem or somethin related to video drivers or Xorg??

k_ibou

Member

From: Costa Rica

Registered: 2009-06-09

Posts: 101

Re: [KDE] unable to start session

Did you try deleting the kdecache-* files in /var/tmp.

Doing that you still have desktop effects?

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

Re: [KDE] unable to start session

Did you try deleting the kdecache-* files in /var/tmp.

Doing that you still have desktop effects?

confirm: no effects disabling compositing!

k_ibou

Member

From: Costa Rica

Registered: 2009-06-09

Posts: 101

Re: [KDE] unable to start session

I'm using nvidia card and I was reading that the new nvidia drivers is a beta

https://bbs.archlinux.org/viewtopic.php?id=115750

so maybe it's no a KDE problem.

Is someone with an AMD drivers with the same problem?

k_ibou

Member

From: Costa Rica

Registered: 2009-06-09

Posts: 101

Re: [KDE] unable to start session

confirm: no effects disabling compositing!

Which method do you use to solve the problem?

Pierre_Buard

Member

From: France

Registered: 2009-03-02

Posts: 5

Website

Re: [KDE] unable to start session

Completely removing ~/.kde4/share/config/kwinrc allowed me to get back Desktop Effects. Mind you I'm using nouveau, not nvidia blob.

So to sum up, try to disable compositing :

I fixed doing this: vim .kd4/share/config/kwinrc
There you should do this:
    [compositing]
    Enable=false

If you can then login and you want to get it back or plan for the future: delete ~/.kde4/share/config/kwinrc and relogin. A fresh, sanitized file will be created without any weird blacklist code.

k_ibou

Member

From: Costa Rica

Registered: 2009-06-09

Posts: 101

Re: [KDE] unable to start session

I'm gonna try that now, I will post the result. Thanks for the tip Pierre_Buard

k_ibou

Member

From: Costa Rica

Registered: 2009-06-09

Posts: 101

Re: [KDE] unable to start session

nop, it didn't work. KDM freezes when KDE icon appear but I still can hear the entrance.

In fact KDE create a new and clean kwinrc but still freezes so be carefull when delete kwinrc.

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

Re: [KDE] unable to start session

nop, it didn't work. KDM freezes when KDE icon appear but I still can hear the entrance.

In fact KDE create a new and clean kwinrc but still freezes so be carefull when delete kwinrc.

It's a nvidia issue!!
I solved DOWNGRADING to nvidia driver 260!!

i hope it will be fixed soon!

Last edited by virusso80 (2011-03-27 10:49:32)

k_ibou

Member

From: Costa Rica

Registered: 2009-06-09

Posts: 101

Re: [KDE] unable to start session

thanks for the info virusso80 so we have to wait until a new release that fix this problem

k_ibou

Member

From: Costa Rica

Registered: 2009-06-09

Posts: 101

Re: [KDE] unable to start session

Ok, this is weird. I have two machines both with arch 64 bits and kde 4.6.2 and I updated nvidia and nvidia-utils from 260 to 270.41.03-1 in both of them.

One of them(home) without a problem but the other one(work) is having this issue again.

I have had to disable OpenGL in kwinrc to get access to my work pc.

Is this related to nvidia drivers or KDE SC?

anyone is having this issue?

zippy

Member

Registered: 2009-02-01

Posts: 54

Re: [KDE] unable to start session

Same issue, fresh KDE install, with latest nvidia driver.

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

Re: [KDE] unable to start session

I think problem is still there! i upgraded after lots of time, but NOW again same problem. The main issue now is that driver can not be downgraded because of the hernel version!!!!! what to do now? should i go back with kernl too? my video card is nvidia geforce 7500 LE and from nvidia website the "certified" version is 270.41.19...the it should be fine!

Any suggestion?

Last edited by virusso80 (2011-06-11 21:53:04)

smellyman

Member

Registered: 2010-08-23

Posts: 11

Re: [KDE] unable to start session

I have had lots of issues with my nvidia 7300 LE.  Has trouble with kde, Gnome3 and Unity.

For KDE, unchecking "Enable Direct rendering" in Advanced, desktop effects fixes the problems for me.

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

Re: [KDE] unable to start session

I have had lots of issues with my nvidia 7300 LE.  Has trouble with kde, Gnome3 and Unity.

For KDE, unchecking "Enable Direct rendering" in Advanced, desktop effects fixes the problems for me.

how could i do what you suggested?

is this what you suggested?

glxinfo | grep rendering
direct rendering: Yes

Last edited by virusso80 (2011-06-12 11:50:05)

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

Re: [KDE] unable to start session

I added to xorg.conf the following section,

Section "Extensions"
    Option        "Composite"    "0"
EndSection

but this is not a solution, it disables compositing as could be done in kwinrc!

I didn't understand how to fix this.

I tried following the wiki installing nouveau (late start)...hoping less issues...but...after all boot scripts, kdm doesn't start at all!

k_ibou

Member

From: Costa Rica

Registered: 2009-06-09

Posts: 101

Re: [KDE] unable to start session

I just updated the nvidia blob and the issue still remains. I want to know, all of us have an old nvidia card?
In my case I have a 7300 GS, someone with a new card suffering this problem.

kojo

Member

Registered: 2008-02-17

Posts: 1

Re: [KDE] unable to start session

I just updated the nvidia blob and the issue still remains. I want to know, all of us have an old nvidia card?
In my case I have a 7300 GS, someone with a new card suffering this problem.

I have the same issue and also a 7300GS.
I found the following thread in nvnews where it is mentioned that it is not distro specific but mostly  card specific.

http://www.nvnews.net/vbulletin/showthr … 115&page=4

virusso80

Member

From: Italy

Registered: 2007-03-09

Posts: 325

Re: [KDE] unable to start session

I just updated the nvidia blob and the issue still remains. I want to know, all of us have an old nvidia card?
In my case I have a 7300 GS, someone with a new card suffering this problem.

I have the same issue and also a 7300GS.
I found the following thread in nvnews where it is mentioned that it is not distro specific but mostly  card specific.

http://www.nvnews.net/vbulletin/showthr … 115&page=4

in fact it's not distro specific! using old drivers (which means old kernel) it works!!

very annoying! It seemed nvidia was working well under linux...but it's not always true!

If you are able to make it working, i'll appreciate a lot.

Thanks