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ahmad.elkomey
3 Posts
0
1702
February 13th, 2020 03:00
Latitude 5591 Won't Boot Unless Power Cord Connected
Hello all,
I've been using Latitude 5591 for around 4 months now and it's just great. I have a problem that started two-three days ago. The laptop doesn't boot unless the power cord is connected on boot. Details follows.
A couple days ago, Ubuntu Software Center showed with a message that a firmware update is available. I accepted the update. The very next restart, the BIOS was updating and it completed successful. Since then the laptop doesn't boot unless the power cord is connected.
When I hit the power button, one of two scenarios happen:
- Scenario A: Ubuntu's mauve/purple loading screen shows and it's stuck there.
- Scenario B: Grub menu shows a list of options (Ubuntu, Advanced Ubuntu Options, System Settings). When I choose Ubuntu, scenario A starts. Whenever I choose any kernel option from the advanced options, scenario A starts.
Now, if I have the power cable connected, Ubuntu boots right away.
Shedding some light as to what the problem is and how to get it solved would be much appreciated.
I'm using GNU/Linux 18.04.4 LTS.
Thanks in advance.
ahmad.elkomey
3 Posts
1401
0
Posted February 17th, 2020 01:00
I worked with one of the support team and what I ended up doing is downgrading.
Maybe I'm gonna look into your solution and maybe I'm gonna understand what it does.
AndrasL
2 Posts
1418
0
Posted February 16th, 2020 12:00
Hello,
I had the same issue, really annoying.
Just managed to resolve it by following the steps in the linked video under: https://askubuntu.com/a/1171408/851776
Basically you add the the dis_ucode_ldr flag to the GRUB options and update the grub config as the video suggests. I am not sure about the tradeoffs though, but I tried and it worked for me. (With Latitude 5591 Ubuntu 18.04)
Hope that will help.
Andras