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long black screen during boot up - Printable Version

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+--- Thread: long black screen during boot up (/showthread.php?tid=5159)

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long black screen during boot up - TMG1961 - 04-08-2018

When i boot up the laptop i get a black screen for 15 seconds just after the feather screen untill my desktop is visible. This is something new, used to be much much less then that. Ayone any idea what might be the problem?

Re: long black screen during boot up - Valtam - 04-09-2018

Press the Home key when you reboot for verbose messages, see where it is sticking.

What is the output of:

Code:
systemd-analyze blame

and check the last reboot messages from /var/log/syslog.

Re: long black screen during boot up - TMG1961 - 04-09-2018


Hi Jerry,


When i check syslog it doesnt shows anything from Aug 18 13:44:09 to Aug 31 09:43:54 after that no entries.


When i press the Home key during reboot the only thing i can read before its gone is scanning for btrfs


Outcome of systemd-analyze-blame is:
Code:
theo@Lenovo-B50-30:~$ systemd-analyze blame
          9.116s NetworkManager-wait-online.service
          8.309s ntp.service
          7.580s rc-local.service
          2.923s dev-sda1.device
          1.897s dev-zram0.device
          1.875s dev-zram1.device
          1.034s networking.service
           873ms accounts-daemon.service
           846ms console-setup.service
           819ms ModemManager.service
           574ms systemd-logind.service
           559ms lightdm.service
           558ms ufw.service
           537ms virtualbox.service
           517ms NetworkManager.service
           493ms grub-common.service
           482ms virtualbox-guest-utils.service
           476ms apparmor.service
           471ms upower.service
           460ms avahi-daemon.service
           392ms preload.service
           390ms lvm2-monitor.service
           375ms systemd-udev-trigger.service
           369ms irqbalance.service
           354ms ondemand.service
           340ms console-kit-log-system-start.service
           330ms gpu-manager.service
           262ms systemd-user-sessions.service
           257ms thermald.service
           233ms keyboard-setup.service
           226ms rsyslog.service
           218ms zram-config.service
           197ms binfmt-support.service
           180ms lm-sensors.service
           174ms minidlna.service
           173ms pppd-dns.service
           144ms ubiquity.service
           140ms polkitd.service
           113ms NetworkManager-dispatcher.service
           101ms systemd-modules-load.service
            96ms systemd-udevd.service
            93ms kmod-static-nodes.service
            93ms systemd-journald.service
            92ms dev-mqueue.mount
            86ms udisks2.service
            82ms hddtemp.service
            76ms dev-hugepages.mount
            75ms systemd-update-utmp.service
            73ms [email protected]
            59ms systemd-tmpfiles-setup.service
            58ms dns-clean.service
            48ms plymouth-read-write.service
            48ms proc-sys-fs-binfmt_misc.mount
            46ms sys-kernel-debug.mount
            45ms resolvconf.service
            35ms systemd-journal-flush.service
            32ms systemd-tmpfiles-setup-dev.service
            26ms postfix.service
            22ms plymouth-start.service
            21ms systemd-update-utmp-runlevel.service
            17ms systemd-backlight@backlight:intel_backlight.service
            14ms systemd-remount-fs.service
            13ms ureadahead-stop.service
            12ms systemd-sysctl.service
            11ms rtkit-daemon.service
            11ms sys-fs-fuse-connections.mount
             9ms systemd-random-seed.service
             6ms openvpn.service
             6ms plymouth-quit-wait.service
             4ms setvtrgb.service


Re: long black screen during boot up - Valtam - 04-09-2018

If you don't use the BTFRS file system, you're probably using etx4, you can remove it:

Code:
sudo apt purge btrfs-tools

Set a Restore Point first.

Re: long black screen during boot up - TMG1961 - 04-09-2018

Thank you, will do that. Now first have to catch up on making restore point, havent done that in a very longtime. I know, should do it more often but i keep forgetting.

Re: long black screen during boot up - TMG1961 - 04-09-2018

The 15 sec black screen is still here after the feather screen. No btrfs scan anymore. Not sure why it takes so long.

Re: long black screen during boot up - Valtam - 04-09-2018

Look through Menu, System, System Log for any hints of the delay.

Re: long black screen during boot up - TheDead - 04-09-2018

Hi,

Your sda (harddrive) takes a few seconds there.
Could it be a problem with the harddrive itself hitting a bad sector / calibration problem?
(weird clicking hard drive sounds is an almost 100% indication)
You could check the files sytem with fchk, and the hdd with smartmontools / smartctl
Better be safe than sorry Wink

Another idead, albeit usually from Windows experience Wink ... Could be an antivirus scan running, if you have one isntalled.

Cheers!

Re: long black screen during boot up - TMG1961 - 04-09-2018

There are no clicking sounds, its an SSD
I have to look into smartctl, never used it before.





Re: long black screen during boot up - TheDead - 04-09-2018

With an SSD you can almost forget my post. Lucky you! Wink
Maybe try to boot Linux Lite from USB just to confirm its your install.
Otherwise, maybe checking if theres a driver update.

Just throwing ideas... good luck! :-S