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Black screen after installation

rated 0 times [ 0] [ 0] / answers: 1 / hits: 941 / 2 Years ago, fri, january 14, 2022, 8:30:38

I have an Acer laptop with a Intel GMA4500MHD graphic card, after the installation of Ubuntu from an alternate install cd I get only a black screen after the grub selection pages.

I tried something in this page and I still have the problem. I have tried with Debian testing and I have the same problem, it was alright on older Ubuntu and with debian Squeeze. I think that the kernel update includes some new drivers incompatibles with my graphic card.

Any suggestion?

Thank you very much-

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moloy

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2 Years ago

answered 2 Years ago raacket · Accepted Answer

Two suggestions. You may need to boot a live CD and mount your ubuntu install to make the edits. Assuming your install is on /dev/sda1

sudo mount /dev/sda1 /mnt

Now edit /mnt/etc/rc.local

gksu gedit /mnt/etc/rc.local

Add this line (avobe exit 0)

setpci -s 00:02.0 F4.B-0

Reboot.

If that fails, try appending your grub kernel (linux) line when you boot

Boot , when you see the grub menu, hit e to edit

acpi_backlight=vendor

If that works, add it to /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"

GRUB_CMDLINE_LINUX="acpi_osi=Linux"

Then update grub

sudo update-grub