I tested with and without AMD proprietary firmware: no solution
updated and upgraded mate more than 1 time…
the only thing that helps is:
boot in grub to latest recovery mode, than in recovery menu > boot
first entry > graphical login arrives…
-
in „normal“ boot mode - after the grub screen > screen goes
black, the computer „stops“ about 10..20 sec, (now the monitor switches to out of sync) while there are no blinking HD-Leds etc. PC seams to stop for a while, later goes on booting (HD LEDs blinking normally...). The screen keeps black and even switching it off/on brings no screen… no sync possible at all
-
in recovery mode + boot > text arrives on the screen. The timeout
seams to be much shorter: screen stays „on“, login appears… works
searching for the difference in both cases:
normal mode:
ab@UMate-MS-7891:~$
systemd-analyze blame
23.077s dev-sda5.device
20.473s systemd-udevd.service
20.141s systemd-sysctl.service
7.869s NetworkManager-wait-online.service
5.990s nmbd.service
5.836s samba-ad-dc.service
4.697s grub-common.service
4.474s apport.service
4.444s networking.service
3.659s libvirt-bin.service
3.333s irqbalance.service
3.172s speech-dispatcher.service
………
no login possible because screen does not „resync“
in recovery mode:
ab@UMate-MS-7891:~$
systemd-analyze blame
27.460s dev-sda5.device
7.006s NetworkManager-wait-online.service
6.291s systemd-udevd.service
5.507s friendly-recovery.service
1.948s NetworkManager.service
1.287s accounts-daemon.service
1.219s ModemManager.service
1.185s nmbd.service
1.105s samba-ad-dc.service
990ms systemd-tmpfiles-setup-dev.service
607ms gpu-manager.service
596ms grub-common.service
593ms irqbalance.service
…..
graphical login: OK
Its a AMD Kaveri CPU, 8 GB Ram, 1 TB HD, multiboot with win 10, both
without EFI (mbr) and I have no idea, why it takes so much time to boot...