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Help. Blinking cursor on reboot after updates

Posted: Sun Oct 27, 2013 9:03
by schick
I installed Sabayon (new user) after determining I needed nomodeset (or was it acpi off, maybe both).

My system is a HP2000 laptop. Kinfocenter shows that I have a Radeon HD 6310 (under the OPENGL list.

Looked great. I I then installed the updates via Rigo.

After rebooting I find that I can't get past a black screen with a flashing cursor in the upper left. While attempting to adjust boot parameters at the boot screen, I noted that while I am supposedly able to use emacs style editing (no experience), the entries seem to already contain acpi=off and nomodeset. i was under the impression from looking online that these entries might fix the issue. It appears that these entries are actually not present in /etc/default/grub

i was forced to reinstall, but am afraid to update the system as it will likely screw up again.

I am tempted to add acpi=off or nomodeset or acpi_osi=Linux (or all of them) to /etc/default/grub, but realize that I am inexperienced and could make things worse.

Please help.

As well, If I fail to make the needed changes after an update, is there method I can use to gain access the linux partition, and make changes/

Please forgive my awkwardly written appeal, it is 2 Am and my brain hurts. :oops:

Re: Help. Blinking cursor on reboot after updates

Posted: Sun Oct 27, 2013 9:28
by linuxfluesterer
I have read, when this blinking cursor in the beginning appears, it should be due to a bug in the Kernel.
The solution should be to
Press the 'Fn' key + Arrow (Cursor) Right key
I must confess, I didn't have this problem, so I've never tried this.
Hope, you'll have luck anyway.

-Linuxfluesterer (I love KDE ...)

Re: Help. Blinking cursor on reboot after updates

Posted: Sun Oct 27, 2013 17:43
by albfneto

Re: Help. Blinking cursor on reboot after updates

Posted: Mon Oct 28, 2013 17:28
by Fitzcarraldo
Just in case it is of help, I noticed that the LiveDVDs of the latest few releases of SL (including the Daily releases) have resulted in a blinking cursor or multi-coloured 'snow storm' on my laptop with an ATI Mobility Radeon HD 5650. To get around that I delete the deprecated "vga=791" from the kernel boot line and replace it with xdriver=radeon to stop the LiveDVD loading the closed-source FGLRX driver and force it to use the open-source Radeon driver instead.

So you might try creating a LiveDVD or LiveUSB from the latest Daily ISO release, boot it to see if you get the same effect as you do now, and then try switching to the open-source Radeon driver to see if that fixes it. If it does, you can then try Ctrl-Alt-F1 on your installation to switch to a TTY (or chroot from a LiveDVD or LiveUSB if you can't get to a TTY with Ctrl-Alt-F<n>), uninstall the FGLRX driver and install the open-source Radeon driver. I have not done the latter in SL for ages, but it would be something like the following:

Code: Select all

equo remove ati-drivers ati-userspace amdcccle
equo install xf86-video-ati
eselect opengl set xorg-x11
equo deptest
equo libtest
equo conf update

Re: Help. Blinking cursor on reboot after updates

Posted: Thu Oct 31, 2013 20:47
by anomaly65
also, another easy way when booting from livedvd, select options and input "nomodeset" on the boot line. Seems to work. I'll update the longer directions when I try my next install to keep them accurate :D