I had a problem with my HDMI without sound and I found this fix.

Edit /etc/default/grub and change this line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

to this line

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1"

Now run "sudo update-grub", then reboot your computer.

Now, the boot stuck in a file systems check. Each time it's stucked in a different message. Sometimes, about bluetooth, others for network monitor etc. I cannot open Linux from recovery and from older versions, each one stuck in a black screen.

I cannot access my pc and if I will not find a sollution soon, I will turn to a clean install with losing all my data :(

  • Just follow the instructions here - unix.stackexchange.com/a/109492/48083. Except, before you do the update-grub again remove the offending option from your /etc/default/grub – Graeme Mar 19 '14 at 20:45
  • If I am not wrong, I have access to grub. I can see all the options including windows 8 as a dual boot. The problem on the links seems to be without a grub at all. Right? – Tasos Mar 19 '14 at 20:50
  • What you need to do is run update-grub again after you have removed radeon.audio=1 (assuming this is what caused the problem). The only way for you to do this if you cannot boot is to boot from a live CD/USB drive and run the commands inside a chroot environment, as described in detail the linked answer. You can skip step 4 and the grub-install part of step 5, but running them won't do any harm. Just make sure you get the correct partition as described and do not blindly copy the commands. – Graeme Mar 19 '14 at 20:56

If you can access the grub (as can be read in the comments), just press E look for the line starting with linux and ending in quiet splash radeon.audio=1, like this:

linux   /vmlinuz-3.13-1-amd64 root=UUID=cead26d6-08f4-4894-ac78-a9a4ce59f773 ro initrd=/install/initrd.gz quiet splash radeon.audio=1

and remove the offending parameter. Press Ctrl + X to boot the system. After that, just editing the /etc/default/grub and running update-grub should be a permanent fix (or reversion) of whatever you have done.

  • I tried it but the boot stack there again. – Tasos Mar 20 '14 at 6:36

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