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My laptop is freezing and nothing works when it freezes! And after 4 seconds the laptop's fan rotates at max speed at 2-second intervals. I had to hold the power button to force shutdown but I am losing all the important work I was doing.

I tried Alt+Ctrl+F1-7 but nothing happens. I searched Google and many people have the problem but none have the solution. A YouTube comment said in etc/default/grub, change GRUB_CMD_LINE_LINUX_DEFAULT="" to GRUB_CMD_LINE_LINUX_DEFAULT="acpi_osi=linux" but that didn't work.

The proprietary drivers are Intel according to additional drivers. I did a clean install of Ubuntu, not with dual-boot or VirtualBox.

And I cleaned my laptop even though there is no dust. I also clean-installed and the solution I got from the YouTube comment made it worse, so I reinstalled Ubuntu. I also tried laptop mode tools.

Even the shutdown command restarts the laptop.

And when I check anything in the additional drivers and refresh/reload to download them, it says no internet connection but I am connected to a 4mbps network.

Maybe because it's opensource and there are so many varieties of PC laptops and mine is notebook.

Even if I wanted to, I can't go back to Windows 10 because it's not free anymore.

edwinksl
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Ghostumour
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3 Answers3

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How old is the laptop? Have you ever cleaned it? People tend to forget that dust does enter inside laptops. I think that, before posting any software-relate question here, you should run an errand to the service and ask for a general check for your device. It may need undusting, fans may need to be oiled. Only after eliminating any hardware-related suspicions, you can look elsewhere for your solution.

Also, check on Acer Forum. It may help you: community.acer.com/t5/Discussion-Forums/ct-p/boards

(I've decided to move my comment on the "Answers" section, as it is more adequate here.)

Cristiana Nicolae
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The problem seems to be with your laptop's cooling system. It seems that it is not able to cool the processor when CPU usage is high. It might be due to dust settled inside for a long period of time. I would advice you to use a lighter desktop environment such as lxde as a temporary solution. Cleaning the laptop from inside would be a good solution.

Ceda EI
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Solved finally!! Thankyou for this community....I finally found it :)

And sorry ...My level is low...so I can't post any potato...Think this as a potato O

Here is the Solution:

-When you boot the live system, move your selection to 'Try Elementary OS without installing', then press 'E' on your keyboard (for editing the boot options). Move the cursor to the line where it says "Linux ....... splash screen" at the end of the line insert a space and then write 'modprobe.blacklist=dw_dmac,dw_dmac_core'. Hit F10 for booting. Now install Elementary OS and reboot.

-Turn on your notebook and do all the updates (sudo apt-get update && sudo apt-get upgrade). Next open a terminal and write 'sudo nano /etc/default/grub', go to the line where it says 'GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"' and change it to 'GRUB_CMDLINE_LINUX_DEFAULT="quiet splash modprobe.blacklist=dw_dmac,dw_dmac_core"'. On your keyboard press 'Control + X', then 'Y' and 'Enter' to save and exit. Now write 'sudo update-grub' in the terminal.

Reboot and you should be done!

If you're interested in what you have changed on your computer read this: http://www.differencebetween.net/tec...n-dma-and-pio/

No.....this didn't work either

Maybe if i change to an older kernel...it may work....any suggestions about stable kernel?...guys

Changed to a random kernel....it finally is working smoothly.......pwew!!

Ghostumour
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