0
votes
0answers
66 views

Ubuntu shows only one core with nolapic booting option

The only way I can boot my Ubuntu (13.10) on my iMac properly is with 'nolapic' option. However, as far as I know, this option disables all the cores but one. I wonder, is there any way for me to boot ...
2
votes
0answers
112 views

Module acpi not found

My OS is 12.04, I'm not able to suspend and wake up my PC at given time, or better if I run sudo rtcwake -m mem -s 120 My PC enter suspend mode and the power-on light turns up after 2 minutes, but ...
1
vote
0answers
567 views

ACPI Warnings in logs

On Ubuntu 12.04.3 with kernel 3.8 this message appears in the kernel.log and the syslog. Sep 23 12:24:06 laptop-allard kernel: [ 6.988503] ACPI Warning: 0x0000000000000428-0x000000000000042f ...
0
votes
0answers
129 views

Thinkpad T60p boots 12.04 & 13.04 from Live CD but panics when booting same from SSD

Strange problem has me stumped. Recently swapped out old HDD for new SSD on my T60p. Now can't seem to boot off it after installing either 12.04 or 13.04, but booting from Live CD with same those ...
0
votes
1answer
442 views

How to configure acpi for battery?

I am using: acpitool -B to print out information about my battery. It returns: Battery status : <not available> When I do ls in /proc/acpi/battery, there are no files. A few other ...
1
vote
1answer
386 views

How do I control the fan when running kernel 3.7?

A while ago I started to use thinkfan to control the fan speed of my lenovo thinkpad. This became necessary as it stoped working after a kernel update (I think it came with the installation of a v3.7 ...
0
votes
2answers
2k views

My laptop only boots with the acpi=off parameter. How can I fix this?

I managed to install Ubuntu 12.10 with the option acpi=off, as it didn't work without. Now it boots only with this option. Is it possible to solve the problem for the need of this option? With this ...
0
votes
1answer
780 views

Samsung series 5 ultra - suspend on lid closing is disabled by kernel

I have a Samsung series 5 ultra (np530U4c - ivy bridge/Nvidia version). The machine won't suspend on lid closing. I has worked on fresh install. After it I added "pcie_aspm=force ...
3
votes
1answer
2k views

Is an ACPI GPE storm normal in an Ubuntu session?

In a previous question (What is an ACPI GPE storm?), I asked about ACPI GPE storm. Looking closer to my kern.log file in /var/log/, I notice that in every session at some point (usually withing 20' ...
4
votes
1answer
2k views

What is an ACPI GPE storm?

Just experienced a system freeze (no touchpad, no keyboard, screen looked normal), Alt/SysRq/REISUB didn't work, had to press the start button. In var/log/kern.log I find "ACPI: EC: GPE storm ...
3
votes
2answers
8k views

No ACPI support for my PC, what can I do?

On my new PC something is wrong with ACPI support under Linux. I have to boot it with acpi=off and nolapic. Also it detects only one CPU core (this annoys me the most) and won't shut down completely, ...
3
votes
1answer
4k views

Using quad core, but only 1 CPU entry in `/proc/cpuinfo`? Is SMP running on my computer?

I just upgraded my system and did a clean install of Ubuntu when I did (Installed Oneiric Ocelot from the CD last week but yesterday upgraded to 12.04 LTS). I have an i7 920 (quad core with ...
1
vote
0answers
832 views

Error message “BUG: unable to handle kernel” [closed]

I extracted the .iso onto a disk, and tried to boot from it. For the longest time, it wouldn't even boot, instead, it would bypass it and boot from the hard drive, until I swapped my newer disk drive ...
1
vote
0answers
213 views

When is a Kernel update due for 11.10? [duplicate]

Possible Duplicate: Kernel patch that solves battery issues when for ubuntu ? Thanks to Phoronix there seems to be a fix for the power regression/overheating bug in the Linux Kernel 3.0.1 ...
1
vote
2answers
2k views

Do I need to add a boot parameter to work around this kernel power bug on a Sony Vaio VPC-EH1S0E?

If i with dmesg | grep -i aspm have this: [ 0.503709] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it [ 0.673564] ACPI _OSC control for PCIe not granted, disabling ...
24
votes
3answers
40k views

What does the kernel boot parameter “set acpi_osi=Linux” do?

I am facing an issue with brightness control in my laptop which has Intel HD graphics. So when I searched for a fix I found that a common suggestion is to edit the GRUB file line, ...
4
votes
1answer
3k views

What is the impact of the nolapic parameter on a multiprocessor laptop?

I have an Asus X71SL with an Intel Dual Core T3200 processor. Any kernel version after 2.6.35-rc2 won't boot up on my machine without the nolapic kernel parameter at bootup. I have already reported ...
4
votes
2answers
5k views

Boot with “noacpi” automatically from hard drive?

If I boot ubuntu from the live cd without any special options I get the following message: [ 0.040001] Kernel panic - not syncing: IO-APIC + timer doesn't work! Boot with apic=debug and send a ...