Вот так выглядит мой черный экран при вводе ctrl+alt+f1..f6.
При нажатии alt+f7 возвращается в окно приветствия. Вот так выглядит мое окно приветствия, если что
вот ответ по команде lspci -knn | grep -EA2 'VGA|3D' через лайвСД может поможет.
ubuntu@ubuntu:~$ lspci -knn | grep -EA2 'VGA|3D'
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde XT [Radeon HD 7770/8760 / R7 250X] [1002:683d]
Subsystem: Gigabyte Technology Co., Ltd Device [1458:2556]
Kernel driver in use: radeon
Пользователь решил продолжить мысль [time]08 Август 2015, 16:22:39[/time]:
добавляю
системный журнал на ошибки:
ubuntu@ubuntu:~$ cat /media/ubuntu/493d9ee6-3b95/var/log/syslog | egrep -i "(error|fail|warning)"
Aug 8 16:59:01 dennis kernel: [ 0.000000] ACPI BIOS Warning (bug): 32/64X length mismatch in FADT/Gpe0Block: 64/32 (20141107/tbfadt-618)
Aug 8 16:59:01 dennis kernel: [ 2.486517] ACPI PCC probe failed.
Aug 8 16:59:01 dennis kernel: [ 5.999535] ACPI Warning: SystemIO range 0x0000000000000295-0x0000000000000296 conflicts with OpRegion 0x0000000000000290-0x00000000000002af (\_SB_.PCI0.SBRG.SIOR.ECRE) (20141107/utaddress-258)
Aug 8 16:59:01 dennis kernel: [ 6.127782] ACPI Warning: SystemIO range 0x0000000000000b00-0x0000000000000b07 conflicts with OpRegion 0x0000000000000b00-0x0000000000000b0f (\SOR1) (20141107/utaddress-258)
Aug 8 16:59:01 dennis kernel: [ 6.127789] ACPI Warning: SystemIO range 0x0000000000000b00-0x0000000000000b07 conflicts with OpRegion 0x0000000000000b00-0x0000000000000b2f (\_SB_.PCI0.SBRG.ASOC.SMRG) (20141107/utaddress-258)
Aug 8 16:59:01 dennis kernel: [ 6.462629] fglrx: module verification failed: signature and/or required key missing - tainting kernel
Aug 8 16:59:01 dennis kernel: [ 6.572711] EXT4-fs (sda5): re-mounted. Opts: discard,errors=remount-ro
Aug 8 16:59:01 dennis kernel: [ 6.794667] init: failsafe main process (799) killed by TERM signal
Aug 8 16:59:02 dennis NetworkManager[891]: <warn> failed to allocate link cache: (-12) Object not found
Aug 8 16:59:07 dennis NetworkManager[891]: <error> [1439042347.302747] [nm-dns-dnsmasq.c:396] update(): dnsmasq owner not found on bus: Could not get owner of name 'org.freedesktop.NetworkManager.dnsmasq': no such name
Aug 8 16:59:07 dennis NetworkManager[891]: <warn> DNS: plugin dnsmasq update failed
Aug 8 16:59:07 dennis dnsmasq[1947]: warning: no upstream servers configured
Aug 8 16:59:24 dennis NetworkManager[891]: <info> (eth0): IP6 addrconf timed out or failed.
Aug 8 16:59:35 dennis NetworkManager[891]: <warn> error requesting auth for org.freedesktop.NetworkManager.wifi.share.open: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.30': no such name
Aug 8 16:59:35 dennis gnome-session[2776]: CRITICAL: We failed, but the fail whale is dead. Sorry....
журнал Xorg на ошибки:
ubuntu@ubuntu:~$ cat /media/ubuntu/493d9ee6-3b95/var/log/Xorg.0.log | egrep -i "(error|fail|warning)"
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 41.047] (WW) fglrx(0): GetVBEMode failed
[ 41.146] (EE) fglrx(0): XMM failed to initialize
[ 41.328] (EE) AIGLX error: failed to open /usr/X11R6/lib64/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib64/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
[ 41.328] (EE) AIGLX error: failed to open /usr/lib64/dri/fglrx_dri.so, error[/usr/lib64/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
[ 41.328] (EE) AIGLX error: failed to open /usr/X11R6/lib/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
[ 41.328] (EE) AIGLX error: failed to open /usr/lib/dri/fglrx_dri.so, error[/usr/lib/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
[ 41.328] (EE) AIGLX error: failed to open /usr/X11R6/lib32/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib32/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
[ 41.328] (EE) AIGLX error: failed to open /usr/lib32/dri/fglrx_dri.so, error[/usr/lib32/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
[ 41.328] (EE) AIGLX error: failed to load OpenGL driver
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
[ 41.329] ukiOpenDevice: Open failed
Пользователь решил продолжить мысль [time]09 Август 2015, 08:42:50[/time]:
Помогите хотя бы вернуть нормальный вид консоли ctrl+alt+f1. Уже будет легче восстанавливать остальное. Вчера игрался с параметрами nomodeset, quiet splash в grub. Никакого результата.

Пользователь решил продолжить мысль 09 Августа 2015, 10:25:29:
Вернул нормальный доступ к консоли прописав в /boot/grub/grub.cfg "text" вместо "quiet splash". Далее обновил видеодрайвер. Работат.