1
vote
2answers
12 views

Restricting resources of user applications

Sometimes, either because of a memory leak or the computationally-intensive nature of a program, applications can start to slow down and ultimately freeze the whole system by claiming too much RAM or ...
0
votes
1answer
74 views

Respect BIOS-specified CPU speed without kernel patches, etc. in 14.04

I've got a machine running "in the wild" in a very hot environment running an AMD chip which is overheating. I don't have physical access to the machine, but I have had someone change the CPU clock ...
0
votes
1answer
404 views

Ubuntu 14.04 Kernel Update 3.13.0-30.55 made my Laptop CPU gets overheated

I just received an update to the linux kernel of Ubuntu 14.04 from 3.13.0-30.54 to 3.13.0-30.55. After I upgrade it the CPU on my laptop is around 70 to 80 Degree Celsius. while on the previous kernel ...
0
votes
1answer
41 views

Whenever I install Ubuntu it says please use a kernel appropriate for your CPU

Whenever I try to install Ubuntu it says the kernel is not appropriate for my CPU. Or tell me an OS that's Minecraft capable and for an i686 processor.
0
votes
0answers
434 views

Critical temperature reached for thermal thermal_zone0

I have my laptop (Dell Vostro 3350) overheating using Ubuntu (starting from 11.04 upto 14.04 distributives). In syslog I found the record when shutdown is occured: May 21 11:43:43 mobiled2 kernel: ...
0
votes
0answers
41 views

Ubuntu 12.04 new kernel taking way more CPU usage

I recently upgraded to Linux Kernel 3.2.0-58 on Ubuntu 12.04. It works well but today I noticed that it was using 60% CPU usage of the computer. The only programs that were open were GKrellM System ...
0
votes
0answers
28 views

My computer runs Windows 7 64-bit, but won't install the 64-bit version of Ubuntu [duplicate]

I have a laptop that runs Windows 7 64-bit. I'm trying to install Ubuntu to be a secondary operation system, but when I run the setup I get a screen that says This kernel requires an x86-64 CPU, but ...
1
vote
2answers
4k views

“Kernel requires x86-64 CPU, but only detects i686” in an Intel Intel Core i7-2600k?

I have a VM installed in my windows 7 PC, and I want to install an Ubuntu 13.04 on it, as a new virtual disk. I have this machine: Intel Core i7-2600k CPU @ 3.40Ghz - 8 GB RAM - 64 bit operating ...
1
vote
0answers
183 views

TOSHIBA Satellite U400 kernel 3.10 3.11 3.12 cpu fan

After switching to any kernel above 3.9.11 my cpu cooler acts like cpu was overheating, it spins all the time trying to cool down processor even if it's below 50 Celcius. I don't think it's the distro ...
4
votes
1answer
288 views

How to automatically slow CPU instead of starting fans?

In Windows' power options, you had the ability to configure your system to use either 'active' or 'passive' cooling schemes. In the 'active' scheme, the fans would start running faster as the CPU got ...
0
votes
1answer
611 views

AMD FX CPU drivers/patch

I am using Ubuntu since 2009 on notebooks with Intel CPUs. However now, that I am using AMD's FX 6300, I am interested in knowing if there exists anything from Ubuntu (specifically any kernel ...
0
votes
1answer
611 views

is intel turbo-boost option good for life-time?

here is intel-core-i-7 with 2.8 Ghz resp. 3.5 Ghz as turbo-boost option. with this question I refer to this link: Does Intel turbo boost work in Ubuntu? Is option of turbo-boost not harming the ...
1
vote
1answer
643 views

Minimum and maximum cpu frequency are equal

I just noticed my laptop stared working considerably slower. I am using an updated 13.04, though the issue did not start right after the upgrade. After tracking down the issue I noticed that both ...
1
vote
0answers
209 views

high interrupts

I have high Rescheduling interrupts and Local interrupts. while doing nothing my total CPU wakeups reach 275-400. While watching movies it reaches up 900-1000. And while browsing the Internet it ...
6
votes
2answers
698 views

Can't start Ubuntu - Package power limit notification

I used Ubuntu 12.10 on my current laptop for a couple of weeks without problems... Now there is no way to start it. When I try to boot Ubuntu during the startup process I get this error: [CPU0]: ...
2
votes
1answer
139 views

Creation of /proc/stat

Which function of the kernel creates and writes the information for /proc/stat. In this, would like to know when kernel gets the cpu information(recognises number of cpus). If possible can anyone ...
0
votes
2answers
96 views

HELP! i cant run the machine! [duplicate]

Possible Duplicate: What is the difference between 32-bit and 64-bit and which should I choose? when i try to run the machine a messeage appear in the black screen sayinh "this kernel ...
2
votes
0answers
621 views

Why is only one CPU detected on a Macbook with a dual-core processor?

I have a January, 2009 Macbook5,2. It has an Intel Core 2 Duo 2Ghz processor. Since installing Xubuntu 12.04, it runs very slowly. The CPU gadget in the top panel shows only 1 dark column to the left ...
1
vote
1answer
584 views

Can't find “/sys/devices/system/cpu/sched_mc_power_savings”

I'm currently working on Ubuntu 12.04 x64. A lot of manuals about power saving in Linux tells about using parameters /sys/devices/system/cpu/sched_mc_power_savings and ...
17
votes
5answers
126k views

Kernel requires an x86-64 CPU, but only detected an i686 CPU. How can I install Lubuntu/Ubuntu?

I'm trying to install Lubuntu on my laptop (sorta old 2005). [Laptop stats: Intel® Celeron® CPU 410 @ 1.46 GHz 1.47GHz, 448 MB of RAM] I press Install and this message appears: This kernel requires ...
5
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
1answer
2k views

Kernel settings for interactive and responsive desktop

What kernel settings are recommended for an interactive and responsive desktop on a 6 core system with 8Gigs of RAM? I've set swappiness to 10 as recommended in a few guides but what other setting can ...