Help with BlackScreen at Login Screen

This is what ‘/etc/default/grub’ looks like before any editing:

The I edit it to add the highlighted part only where you see it in screen shot:

Then open Konsole and run ‘sudo update-grub2’, which will look something like this when done:

Mmmhh I noticed sometimes it still delay a long time the Login screen, I will run more tests in the weekend I think but at least now it isnt all the time.
I didn’t modify anything else after the last post I put in this thread about this issue.

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Could you post output of:

$ cat /etc/default/grub

Done:

[sogetsu@Mandriva-PC ~]$ cat /etc/default/grub
GRUB_GFXPAYLOAD_LINUX=keep
GRUB_DISABLE_RECOVERY=false
GRUB_GFXMODE=1680x1050,1360x768,1280x800,1024x768,1024x600,800x600,640x480
GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true
GRUB_TIMEOUT="10"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=ef4c277c-c1f3-4c64-921b-8ae720676e34 logo.nologo acpi_osi=Linux acpi_osi='!Windows 2012' acpi_backlight=vendor audit=0 rd.timeout=120 scsi_mod.use_blk_mq=1 dm_mod.use_blk_mq=1 rd.systemd.show_status=0 systemd.show_status=0 random.trust_cpu=1 radeon.si_support=0 radeon.cik_support=0 amdgpu.si_support=1 amdgpu.cik_support=1"
GRUB_CMDLINE_LINUX_RECOVERY=" failsafe nomodeset xdriver=vesa vga=788 acpi_osi=Linux acpi_osi='!Windows 2012' acpi_backlight=vendor systemd.log_level=debug systemd.log_target=kmsg log_buf_len=1M audit=0 rd.timeout=120 "



GRUB_DISABLE_VENDOR_CONF=false
GRUB_DISTRIBUTOR='openmandriva'
[sogetsu@Mandriva-PC ~]$

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=ef4c277c-c1f3-4c64-921b-8ae720676e34 logo.nologo acpi_osi=Linux acpi_osi='!Windows 2012' acpi_backlight=vendor audit=0 rd.timeout=120 scsi_mod.use_blk_mq=1 dm_mod.use_blk_mq=1 rd.systemd.show_status=0 systemd.show_status=0 random.trust_cpu=1 radeon.si_support=0 radeon.cik_support=0 amdgpu.si_support=1 amdgpu.cik_support=1"

You still have 2 fixes there for one issue. Edit that to this:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=ef4c277c-c1f3-4c64-921b-8ae720676e34 logo.nologo acpi_osi=Linux acpi_osi='!Windows 2012' acpi_backlight=vendor audit=0 rd.timeout=120 scsi_mod.use_blk_mq=1 dm_mod.use_blk_mq=1 rd.systemd.show_status=0 systemd.show_status=0 random.trust_cpu=on"

Try that and we’ll see if that does any better. And don’t forget that after editing that file you have to run:

$ sudo update-grub2

For any change to take effect.