If so, then I have the fix for you.
If you have not already installed Linux, when you get to the boot screen that gives you an option for Normal boot or Recovery Boot, choose the option to edit the boot options, this is sometimes done by hitting "e" or "tab"buttons, just depends on your distro.
I noticed some typos that will affect the results. There's other modes of disabling in the link below. Which was why I tagged Toshiba Laptop and not say, Acer Sorry that it didn't work for ya.
While I know that it may not work for all computers experiencing this issue, the main thing was it was supposed to be directed at Toshiba Laptop users I had thought that I had added that in. Obviously not. It did not give me as much control as the options that I added did. The ones that I added worked best for my machine, and it seems that the only thing that I couldnt do was to adjust the screen brightness.
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It only takes a minute to sign up. I know similar questions are already there, but I went through almost many of those and could not figure out how to solve it. I badly need my wifi up and running. I looked for any hardware switch, but mine is "hp pavillion 13 a", has only airplane mode switch which doesn't do anything. After a day long search and troubleshoot, I finally found a hack for all my problems.
Since I used. In some computers like mine it turns off the wifi also. Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Wifi not working in fresh ubuntu Asked 2 years, 10 months ago.
Active 6 months ago. Viewed 1k times. I have tried rfkill unblock all but nothing, Is it because I turned off acpi? Thanks in advance. Emil Emil 51 6 6 bronze badges. Airplane mode turns all radios off, that's what it does. Ya, but I cant turn it off since it just toggle back to on. I need my wifi up and running. Any suggestion to solve this? Please run: sudo modprobe hp-wmi and then see if the airplane mode switch works. If there is an error or warning, please post it.
I have edited my question with the result. Thank you for spending your quality time for me. Active Oldest Votes. Hope this will help someone in future. The Overflow Blog. Featured on Meta.Welcome to LinuxQuestions. You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features.
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Problem Crontab switches off pc at PC is off for 6 hours. At But Im trying to setup this, but no success. Solution Any solution is welcomed.
History for digging around I have tried 2 methods how to startup my pc in 5. The most realistic was to start it with BIOS. Bios can not start it. If ACPI is off in grub. The box is a redhat 9. Thread Tools. BB code is On. Smilies are On. All times are GMT It is the system that describes hardware to the operating system to let understand what hardware is present and to properly configure it, controls hardware actions such as the dynamic speed fans, the power button behavior, system sleep states, optionally to control frequencies of CPUs and helps to identify some system capabilities.
ACPI power-saving features are hierarchical, meaning that any device running "behind" another will be dependent on the power state of the parent device. For example, a device cannot be running in full-power "behind" a device that is sleeping or in stand-by mode.
This also comes from the hardware design. However, many hardware platforms ship with buggy or out-of-specification ACPI firmware which can cause any number of unspecified problems. If the machine is randomly powering off or failing to boot, disabling ACPI may help.
The consequences are that when ACPI is off, the server will be unable to turn itself off, as the soft shutdown cannot work after executing poweroff or shutdown -h now.
Edit the kernel line and add the desired option. To give you the knowledge you need the instant it becomes available, these articles may be presented in a raw and unedited form. If the machine is randomly powering off or failing to boot, disabling APIC may help.
I noticed that this hinders Intel's HyperThreading feature.Beam calculator with hinge
Is that expected? Note: some machines are able to boot without using ACPI ACPI power-saving features are hierarchical, meaning that any device running "behind" another will be dependent on the power state of the parent device. Log in to comment. ES Community Member 41 points. Enrique Sanchez-Vela. I have a question regarding this statement: "However, many hardware platforms ship with buggy or out-of-specification ACPI firmware which can cause any number of unspecified problems.
Red Hat Guru points.
Jamie Bainbridge. Hi Enrique, Ah yes, it was a typo. I've corrected the article. Thank you very much for pointing it out! Off the top of my head I am not sure. Recommend opening a support case to ask this question. RF Newbie 5 points. Roberto Fratelli. That seems odd to me. You might want to open a support case to investigate. Here are the common uses of Markdown.Dompdf page break inside table
Learn more Close. Are you sure you want to request a translation? We appreciate your interest in having Red Hat content localized to your language.
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It only takes a minute to sign up. In order for me to boot into Any other options as specified here do not allow me to boot into Ubuntu.
Use the second option if you can't find the New Card Interface. So do that if you have a hidden windows recovery partition in your computer. I've recently purchased a HP Envy 17 jea machine to take advantage of the i7 and oodles of memory. Cutting to the chase I suffered from many issues with this install. The wireless didn't work, the screen "black screened" during installation and thereafter during booting. For your hardware I'd recommend John's approach pf cycling through the options he provided:.
Then do sudo update-grub and reboot! Courtesy of wub. Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 7 years, 11 months ago.
What are the "acpi" and "noapic" kernel boot options?
Active 1 year, 8 months ago. Viewed k times. Filipe Teixeira. Filipe Teixeira Filipe Teixeira 2 2 gold badges 3 3 silver badges 13 13 bronze badges.
Active Oldest Votes. Emerson Hsieh Emerson Hsieh 6, 5 5 gold badges 33 33 silver badges 58 58 bronze badges. Windows can't be affected. Fortunately, the computer had a hidden recovery partition which I didn't know and fixed the problem by itself. But I'm also not so sure why. I thought you talked about the latter. I edited the question. Sorry for causing confusion. I had the same problem. This answer seems unrelated. It does not address this question.
How to resolve the issue? Such that processor, power options, brightness control and other ubuntu options are normalized. Such things need to be sorted out. If you have an nvidia optimus machine like me probably nouveau is freezing the computer on boot. If that's the case you can try nouveau. In my case only this is needed. Nvidia is hostile to free open source drivers and newer cards are very problematic with nouveau.
After that you should be able to install the propietary drivers. Ubuntu Community Ask! Sign up to join this community.
The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 3 years, 11 months ago. Active 3 years, 11 months ago. Viewed 3k times. CR7 CR7 3 1 1 silver badge 6 6 bronze badges. Active Oldest Votes. I have the same processor. Have you tried nomodeset? Marcellinov 2, 3 3 gold badges 9 9 silver badges 22 22 bronze badges.
Kepa Kepa 36 1 1 bronze badge. Thanks for the reply. I have tried nouveau. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Featured on Meta.
Community and Moderator guidelines for escalating issues via new response…. Feedback on Q2 Community Roadmap. Linked Related 3. Hot Network Questions. Question feed.This allows the OS and the platform to evolve independently. Or, the coolest way to isolate where a regression started, is to use git-bisect, as detailed in the following handbook and git tutorial.
Virtually no desktops or servers use ACPI fan control. Instead, they use an embedded controller or other hardware on the motherboard that is independent of ACPI. Some systems, for example, run all fans at maximum speed by default and require you to enable fan speed control in SETUP.Cancun expat forum
Most notebooks also use native fan control instead of ACPI. That is the standard identifier for a fan device. Therefore, switch on debug flags carefully. The latter might be the only way to debug early hangs on laptops without a serial device anyway.
Note that this interface exists since 2. Similar, but more powerful than 3. To provide more information about a Project, an external dedicated Website is created. This establishes a clear link between 01 and the project, and help to have a stronger presence in all Internet. A mailing list improves communication for all the people interested in a A more direct channel to solve your questions and help others to get involved.
Github repositories are the most preferred way to store and share a Project's source files for its easy way to navigate repos. Click here to find and download Bug tracking allows the developers to have a record of the bugs and issues found in an application for a more efficient way to fix them. This is another way to interact with the developers of a Project, solve your questions or contribute to improve it: IRC channels.
Here's the place to find additional information about that Project. Could be more repos, external blogs or other websites related to the Project. Share Share. Start by identifying if the issue at hand: has always occurred on every version of Linux tested. If the issue is a regression, please find the version where the issue first appeared. This can be done by downloading older kernels from kernel.
If the same failure occurs with ACPI disabled, then that should be noted and the issue reported to the appropriate mailing list or linux-kernel vger. But if a different failure occurs with ACPI disabled, then the test was inconclusive.
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This means that the kernel received an interrupt, but there was no driver registered on that IRQ to handle it. As nobody handled it, the kernel had to disable that IRQ to get it to stop bothering the system. Any other devices sharing that IRQ are now dead, as they can not receive any interrupts. However, it doesn't help debug the root cause. Thermal Issues If the fan is spinning too much, or the system still gets hot when the fan is spinning fast: If the system is a laptop, most times this means that there is dust blocking the air flow from the fan over the heat-sink.
Clean out the air vents. Some people find that blowing compressed air through the air vents helps. If you build your own system: Verify that you used thermal grease on the heat-sink. Verify that it is securely attached. Does ACPI control the fan on this system? Top Projects. Projects by type.
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