I have installed Ubuntu 14.04 as stand-alone OS on my Asus-1215P laptop a couple of weeks ago. After installation, it worked fine; but yesterday when I turned on the laptop, it went to the grub menu as usual. However, after that it started having problems:

There was messages like ACPI Probing Failed, then ^[[6~^ kept printing. Then another message was that my cifs drive could not be mounted, after that everything goes into a loop....Bunch of lines printing over a over again, Ubuntu loading screen keeps flashing time to time

I tried to boot from recovery mode and it worked then, but the resolution is so low and ^[[6~^ was still printed a bunch of times. After googling some more, I tried using the command parameter from grub menu multiple times in combination with acpi=off, nomodeset and nosplash. Now, although Ubuntu successfully booted using all three options, the performance and graphics of the OS is like booting from recovery mode. So, what should I do to solve this problem?

P.S: My laptop's 'L' key and "Enter"/"Return" key does not work, so keep in mind that when giving helpful suggestions/solutions

  • if you have no l key, how do you type nosplash – mchid Sep 14 '15 at 7:29
  • well, "quiet splash" is already there. So, I just edited that. – Asiful Nobel Sep 14 '15 at 7:38
  • press CTRL + M as an alternative to ENTER/RETURN – mchid Sep 14 '15 at 7:44
  • @mchid, CTRL + M does not work as alternative to enter/return in Bios menu. Do you know the alternative of return key in BIOS menu? – Asiful Nobel Sep 14 '15 at 13:24
  • sorry, no; only in a bash shell – mchid Sep 14 '15 at 13:31

I never really got a solution for this problem, but I found a work-around.

The work-around was this:

I had turned off the laptop and removed the laptop battery. After a couple of minutes, I plugged it back in and turned on the laptop. Now the numerous messages were gone, but the flashing screen was still there. In order to fix the flashing screen, I tapped the Left-Shift key for a couple of times and held it down for some moment. After couple of moments, the flashing screen becomes alright and Ubuntu boots perfectly into normal mode without problem.

I have been using this work-around for four days now and it is still working perfectly. Further, the solution does not add that much time to the standard boot-time.

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