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I am only getting a flickering screen of writing going too fast to read. But they start with a green [ OK] and sometimes [failed]. This is after choosing to install or try from usb. I have done the md5checksums

Worth noting this isn't exclusive to ubuntu. I have mint installed and cannot boot unless I go through recovery mode and boot without hardware video accelerating if that helps.

Thanks

neil
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    Recovery mode uses the nomodeset boot parameter, which is often required until you install a proprietary video driver. Most often with nVidia. What vidia card/chip do you have? What brand/model system? http://askubuntu.com/questions/162075/my-computer-boots-to-a-black-screen-what-options-do-i-have-to-fix-it – oldfred Mar 28 '18 at 03:27
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    Setting nomodeset let's me boot into ubuntu. So what do you think the issue is? – neil Mar 28 '18 at 03:44
  • Your video driver. – Organic Marble Mar 28 '18 at 04:05
  • Problem was fixed with this script: http://iam.tj/prototype/enhancements/Windows-acpi_osi.html

    I don't understand exactly what it did, but it worked.

     – neil Mar 28 '18 at 06:26
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    @neil, if the problem is fixed, feel free to add your own answer, don't put the solution in the question, otherwise your question will hold the unanswered state. – pim Mar 28 '18 at 06:27
  • Ok sorry, fixed – neil Mar 28 '18 at 06:52
  • I had the same problem with my laptop. Then I checked the AMD documentation for that card and got to know that only selected linux OS supports that card. In short they have stopped developing those particular drivers further. – Pranal Narayan Mar 28 '18 at 08:24

1 Answers1

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Problem was fixed with this script: http://iam.tj/prototype/enhancements/Windows-acpi_osi.html

#!/bin/sh
VERSION="$(sudo strings /sys/firmware/acpi/tables/DSDT | grep -i 'windows ' | sort | tail -1)"
echo 'Linux kernel command-line options required: acpi_osi=! "acpi_osi='$VERSION'"'
read -p "Do you want to add this setting (y/n) ? " answer
if [ x$answer != xY -a x$answer != xy ]; then
  exit 1
fi
echo "Existing Command Line: ` sed -n '/.*linux[[:space:]].*root=\(.*\)/{s//BOOT_IMAGE=\1/ p;q;}' /boot/grub/grub.cfg `"
if grep -m 1 'acpi_osi=Windows' -q /etc/default/grub; then
  echo "There is already an entry; please remove it from /etc/default/grub and redo 'sudo update-grub' then re-run this script"
  exit 2
fi
sudo sed -i "s/^\(GRUB_CMDLINE_LINUX=.*\)\"$/\1 acpi_osi=! \\\\\"acpi_osi=$VERSION\\\\\"\"/" /etc/default/grub
echo "Modified Command Line: ` sed -n '/.*linux[[:space:]].*root=\(.*\)/{s//BOOT_IMAGE=\1/ p;q;}' /boot/grub/grub.cfg `"
sudo update-grub

I don't understand exactly what it did, but it worked.

karel
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neil
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    Do not run scripts from random sites, unless you know exactly what it does. It could be dangerous. But, it added acpi_osi=$VERSION to grub. Not sure what $VERSION is on your system, but on mine it is a blank. I have seen some specific systems need acpi_osi=linux boot parameter. Better to just manually edit sudo -H gedit /etc/default/grub – oldfred Mar 28 '18 at 13:49