Difference between revisions of "Category:X220 Tablet"
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* [http://shop.lenovo.com/ISS_Static/ww/wci/us/ww/pdf/x220t_datasheet.pdf Datasheet] | * [http://shop.lenovo.com/ISS_Static/ww/wci/us/ww/pdf/x220t_datasheet.pdf Datasheet] | ||
* [http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/0a60175_01.pdf Hardware Maintenance Manual (HMM)] | * [http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/0a60175_01.pdf Hardware Maintenance Manual (HMM)] | ||
| + | |||
| + | === BugFix === | ||
| + | It is a known problem for the X220 Tablet (other models may apply), that there is a problem concerning the CPU throttling in LINUX. | ||
| + | * Syntoms vary for different kernels and distributions. Eg in ubuntu the CPU speed gets blocked at low rates and the computer becomes very slow until reboot, in Opensuse the entire desktop freezes (only mouse pointer working) and switching to console is not possible. | ||
| + | * Solution is to '''disable the power management in the BIOS''' (at least disable BIOS CPU speed throttling). This has no major affect on battery life since the OS is still able to throttle the CPU when neccessary. | ||
[[Category:X Series]] | [[Category:X Series]] | ||
Revision as of 08:35, 23 April 2012
ThinkPad X220 TabletThis page gives an overview of all ThinkPad X220 Tablet (X220t) related topics. Machine Type
Features
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Resources
BugFix
It is a known problem for the X220 Tablet (other models may apply), that there is a problem concerning the CPU throttling in LINUX.
- Syntoms vary for different kernels and distributions. Eg in ubuntu the CPU speed gets blocked at low rates and the computer becomes very slow until reboot, in Opensuse the entire desktop freezes (only mouse pointer working) and switching to console is not possible.
- Solution is to disable the power management in the BIOS (at least disable BIOS CPU speed throttling). This has no major affect on battery life since the OS is still able to throttle the CPU when neccessary.
Pages in category "X220 Tablet"
The following 40 pages are in this category, out of 40 total.
