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My computer is a Dell XPS laptop.

I was able to us my Ubuntu 19.04 installation without any problems, but today while working it started to act strange. Every command I would enter into the terminal resulted in permission denied. So I decided to reboot.

I would then enter the password to decrypt the partion, and then it would go to a blank screen, sometimes with a static _ in the upper left corner.

Things I tried

  • Changed /etc/default/grub from GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT=""

  • Tried purging nvidia, but nothing was removed, presumably because it wasn't installed.

  • So I tried to install the Nvidia graphics driver with sudo apt install nvidia-driver-390. This slightly changed the result, but only slightly. Now the screen is almost blank, with the exception of a green OK in the corner. However, on subsequent reboots I now no longer get the green OK. I just get a static _.

    Output from hwinfo --gfxcard --short: 

    nvidia GP107M [Geforce GTX 1050 Ti Mobile]  
Intel UHD Graphics 630 Mobile

  • I tried sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf.mybak but get /etc/X11/xorg.conf no such file or directory.

  • Tried sudo apt-get remove --purge nvidia-*. And this uninstalled a lot of stuff!

  • Tried sudo apt-get remove --purge xserver-xorg-video-nouveau but this E: Unable to locate package xserver-xorg-video-nouveau

  • Tried sudo apt-get install xserver-xorg-video-nouveau but this E: Unable to locate package xserver-xorg-video-nouveau

  • Tried sudo dpkg-reconfigure xserver-xorg - but nothing happened.

  • Tried sudo chmod a-x /usr/bin/compiz and get cannot access /usr/bin/compiz: No such file or directory. From https://wiki.ubuntu.com/X/Troubleshooting/BlankScreen#Analysis_Techniques

  • Tried sudo rm /lib/firmware/amdgpu_raven_dmcu.bin but got No such file or directory

  • Tried sudo apt-get install nvidia-current but got E: Package nvidia-current has no installation candidate

  • Tried: sudo apt-get install --reinstall linux-headers-$(uname -r) and then sudo apt-get install --reinstall linux-image-$(uname -r). Then reboot, but still the same issue remains. From https://ubuntuforums.org/showthread.php?t=1744248&p=10744546#post10744546

  • Tried setting acpi=off in grub. This results in the boot sequence hanging at Freeing unused kernel image memory 2576k. I also tried pci=noacpi. This didnt change the result. I also tried setting acpi=strict. This also didnt change the result. From https://askubuntu.com/a/962099/17643

  • Tried setting apm=off. This didnt change the result. From https://www.linuxquestions.org/questions/linux-software-2/hang-after-freeing-unused-kernel-memory-211275/#post1384593

  • Tried each of the following, individually: nolapic, noapic, acpi_osi=“Linux”, acpi=ht, acpi=noirq and pnpacpi=off. These didnt change the result, except for the last one which resulted in a stream of errors. From https://askubuntu.com/a/406419/17643

  • Tried to recover files using a live cd, and using sudo ecryptfs-recover-private but the live cd doesnt have ecryptfs-recover-private - instead I get command not found. Does anyone know where I can get a Live CD that has ecryptfs-recover-private or where I can install this utility from?

Magick
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  • I tried this, but I dont have that file. So, no its not a duplicate. – Magick Jul 22 '19 at 05:05
  • my apoligies, you had already said youd tried it. shall I delete my comment here? – pierrely Jul 22 '19 at 05:07
  • note that the file to delete was in an amdgpu subfolder. /lib/firmware/amdgpu/raven_dmcu.bin and see my latest success with newer kernel and with that file intact, no blank screen. https://askubuntu.com/questions/1156481/amd-ryzen-2500u-blank-screen-on-boot-after-update/1156482#1156482 – pierrely Jul 26 '19 at 04:53
  • but it did not turn out well, see previous link for update. – pierrely Jul 26 '19 at 05:41

0 Answers0