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    #1

    log in page flickers after entering password

    Hi All

    It seems I am having a graphics card related problem..

    After my system boots up and I reach the log in page, type in my password and press enter, the window flickers then returns to the same log in page requesting the password except this time and every time after the resolution is off...

    Last thing I remember that might have done this is booting up with the PC cable connected to the LCD monitor.

    Its an urgent matter as I will not have internet access for the next 5 days to fix the problem and i need to access my files. All help appreciated.



    Tags: None
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    #2
    Re: log in page flickers after entering password

    Ok I have just added a new user and I was able to log in... this is a temporary solution.

    What does this mean, is it a kde directory problem as mentioned in another post?
    How can I be sure and solve this issue..

    peace
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      #3
      Re: log in page flickers after entering password

      ok so I have managed to add a new user and access kubuntu but stil have not solved the login window loop issue..

      I just managed to access it in Failsafe mode but i was limited with what i can do. I am still not sure if this is a Nvidia or a KDE problem.

      Any assistance is greatly appreciated...

      and How do I add sudo privileges for the new user..

      thanks
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        #4
        Re: log in page flickers after entering password

        That problem is informally known as "login loop" -- I know the solution has been posted on this forum in past. Let's see what "search" turns up ....

        http://kubuntuforums.net/forums/inde...opic=3088389.0

        One cause of that looping problem is a full root filesystem partition, or full home directory partition. So check that situation first.

        Another cause might be a corrupted K Display Manager (KDM). If the root and /home filesystem partitions are not at or near 100%, you might consider rebooting to recovery mode and (as root) doing
        Code:
        apt-get install -reinstall kdm
        I forget, that option might have 2 leading hyphens instead of one -- find out for sure with
        Code:
        man apt-get
        Hope this helps.
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          #5
          Re: log in page flickers after entering password

          I have seen a similar problem just needed to remove the .Xauthority file from the users home directory and all was well again
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            #6
            Re: log in page flickers after entering password

            Originally posted by mfburgo

            just needed to remove the .Xauthority file from the users home directory and all was well again
            Wow -- that's far simpler, if that's all it is. Thanks!
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              #7
              Re: log in page flickers after entering password

              Hi guys ... thanks so much..

              I have tried re-installing kdm, removing .Xauthority and assuggested in the other thread to "shutdown -r now" but to no avail.

              I still have the exact same problem, I am learning my way around the problem however I still need to access.

              any other ideas??
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                #8
                Re: log in page flickers after entering password

                Boot, even if you have to do so, in to Safe Mode. At the prompt, type:
                Code:
                df -hT
                Copy/Paste the results.
                Windows no longer obstructs my view.
                Using Kubuntu Linux since March 23, 2007.
                "It is a capital mistake to theorize before one has data." - Sherlock Holmes​
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                  #9
                  Re: log in page flickers after entering password

                  Also to try: back up /etc/X11/xorg.conf and execute "sudo dpkg-reconfigure xserver-xorg". That, in my mind, shouldn't fix it, but you never know...

                  Or, why not just find out the error? Open up /var/log/kdm.log (e.g. Ctrl-Alt-F1, log in, "less /var/log/kdm.log") and look at the end for errors. (Do this after attempting to log in.)
                  For external use only.
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                    #10
                    Re: log in page flickers after entering password

                    hello Snowhog

                    Boot, even if you have to do so, in to Safe Mode. At the prompt, type:
                    Code:

                    df -hT

                    Copy/Paste the results.
                    Filesystem Type Size Used Avail Use% Mounted on
                    /dev/sda3 ext2 15G 6.7G 7.4G 48% /
                    varrun tmpfs 1013M 156K 1013M 1% /var/run
                    varlock tmpfs 1013M 0 1013M 0% /var/lock
                    udev tmpfs 1013M 104K 1013M 1% /dev
                    devshm tmpfs 1013M 0 1013M 0% /dev/shm
                    lrm tmpfs 1013M 34M 980M 4% /lib/modules/2.6.22-14-generic/volatile
                    /dev/sda1 fuseblk 5.1G 4.3G 745M 86% /media/sda1
                    /dev/sda2 fuseblk 21G 20G 503M 98% /media/sda2
                    /dev/sda5 vfat 9.4G 7.4G 2.1G 79% /media/sda5
                    /dev/sda6 vfat 22G 21G 758M 97% /media/sda6
                    /dev/sda8 vfat 37G 33G 4.3G 89% /media/sda7
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                      #11
                      Re: log in page flickers after entering password

                      Okay. Good. I asked you to provide this information based on the comment by dibl below:
                      One cause of that looping problem is a full root filesystem partition, or full home directory partition. So check that situation first.
                      Your root partition, /dev/sda3, is fine. You still have 52% unused space available.

                      The results show that you have several partitions that are 'dangerously' close to being fully used (100%). Those are:
                      /dev/sda2 (98% used)
                      /dev/sda6 (97% used)

                      The other partitions are also close to being used up, with /dev/sda5 having the largest amount of space still left - 21% free.

                      Which partition do you have your /home partition on, assuming you have a separate /home partition?
                      Windows no longer obstructs my view.
                      Using Kubuntu Linux since March 23, 2007.
                      "It is a capital mistake to theorize before one has data." - Sherlock Holmes​
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                        #12
                        Re: log in page flickers after entering password

                        Which partition do you have your /home partition on, assuming you have a separate /home partition?
                        well, I dont believe i have it under a a separate partition

                        how to double check anyway...
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                          #13
                          Re: log in page flickers after entering password

                          Open a console and type:
                          Code:
                          cat /etc/fstab
                          Copy/Paste the results.
                          Windows no longer obstructs my view.
                          Using Kubuntu Linux since March 23, 2007.
                          "It is a capital mistake to theorize before one has data." - Sherlock Holmes​
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                            #14
                            Re: log in page flickers after entering password

                            Code:

                            cat /etc/fstab

                            Copy/Paste the results.



                            # /etc/fstab: static file system information.
                            #
                            # <file system> <mount point> <type> <options> <dump> <pass>
                            proc /proc proc defaults 0 0
                            # /dev/sda3
                            UUID=221a9e64-477e-404e-88e0-37273a7c86fd / ext2 defaults,errors=remount-ro 0 1
                            # /dev/sda1
                            UUID=220CFF700CFF3D7B /media/sda1 ntfs defaults,umask=007,gid=46 0 1
                            # /dev/sda2
                            UUID=0E4CA0444CA02883 /media/sda2 ntfs defaults,umask=007,gid=46 0 1
                            # /dev/sda5
                            UUID=46A3-4183 /media/sda5 vfat defaults,utf8,umask=007,gid=46 0 1
                            # /dev/sda6
                            UUID=4721-DFC3 /media/sda6 vfat defaults,utf8,umask=007,gid=46 0 1
                            # /dev/sda7
                            UUID=27DB-2CAC /media/sda7 vfat defaults,utf8,umask=007,gid=46 0 1
                            # /dev/sda8
                            UUID=c92a2266-05cb-4270-b123-adf6fb9c4b5d none swap sw 0 0
                            /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0
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                              #15
                              Re: log in page flickers after entering password

                              Attach and send the .xsession-errors file from the home directory of the user that can not login. This will tell us what the problem is the X is having for that user.

                              It will make it much easier to help in fixing the problem......
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