You need bios update to version 23 to support memory upgrade up to 3Gb
I used arch linux x86_64 with vanilla 2.6.31 kernel (rc8 actually, but should be released on 7 sep)
General Hardware Specifications of Lenovo Ideapad S12 via nano
Hardware Components |
Status under Linux |
Notes |
| VIA Nano processor U2250 (1.6GHz Capable) CentaurHauls, 1595.773 MHz | Works | See below |
| 12.1" 1280x800 LED-backlit TFT LCD | Works | See my xorg.conf below |
| VIA Technologies, Inc. VX800/VX820 Chrome 9 HC3 Integrated Graphics [1106:1122] (rev 11) | Works partly (no 3D and hardware mpeg features with opensource drivers) | See below |
| VIA Technologies, Inc. VX800 Serial ATA and EIDE Controller [1106:5324] | Works | SATA=scsi (/dev/sda), using SATA compatability mode |
| Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express [14e4:1713] (rev 02) | Works | See below |
| Broadcom Corporation BCM4312 802.11b/g [14e4:4315] (rev 01) | Works | Using broadcom driver, wpa_supplicant (I used bcmwl-kernel-source_5.10.91.9+bdcom-0ubu Update: no more need for broadcom driver, as fully opensource driver b43 works fine and better. You just need to install proper firmware for it (I followed "You are using the b43 driver with an LP-PHY card (e.g. BCM4312)" section). |
| VIA Technologies, Inc. Secure Digital Memory Card Controller (rev 01) | Works | See below |
| VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) (rev 20) | Works | See below |
| [04f2:b090] Lenovo EasyCamera | Works | uvcvideo kernel driver |
| [0a5c:2150] Broadcom Corp, BCM2046 Bluetooth Device | Works | btusb kernel driver |
NOTE: Via Padlock (support for x86_64), Hardware random generator (support for x86_64) and Via card reader drivers come with vanilla kernels >= 2.6.31
Nothing special about Arch setup, just follow installation guide. Then build latest (at the moment) 2.6.31-rc8 kernel from source (will be in stock soon after official 2.6.31 release).
VIA Nano processor U2250 (1.6GHz Capable) CentaurHauls
# cat /proc/cpuinfo processor : 0 vendor_id : CentaurHauls cpu family : 6 model : 15 model name : VIA Nano processor U2250 (1.6GHz Capable) stepping : 3 cpu MHz : 1595.773 cache size : 1024 KB fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush acpi mmx fxsr sse sse2 ss tm pbe syscall nx lm constant_tsc rep_good pni monitor vmx est tm2 ssse3 cx16 xtpr rng rng_en ace ace_en ace2 phe phe_en lahf_lm bogomips : 3191.54 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management:
To enable hardware encryption (that is perfect for dm-crypt) check this options:
Symbol: CPU_SUP_CENTAUR [=y]
Prompt: Support Centaur processors
Defined at arch/x86/Kconfig.cpu:459
Depends on: PROCESSOR_SELECT
Location:
-> Processor type and features
-> Supported processor vendors (PROCESSOR_SELECT [=y])
Symbol: CRYPTO_DEV_PADLOCK [=y]
Prompt: Support for VIA PadLock ACE
Defined at drivers/crypto/Kconfig:13
Depends on: CRYPTO && CRYPTO_HW && X86 && !UML
Location:
-> Cryptographic API (CRYPTO [=y])
-> Hardware crypto devices (CRYPTO_HW [=y])
Selects: CRYPTO_ALGAPI
Symbol: CRYPTO_DEV_PADLOCK_AES [=y]
Prompt: PadLock driver for AES algorithm
Defined at drivers/crypto/Kconfig:26
Depends on: CRYPTO && CRYPTO_HW && CRYPTO_DEV_PADLOCK
Location:
-> Cryptographic API (CRYPTO [=y])
-> Hardware crypto devices (CRYPTO_HW [=y])
-> Support for VIA PadLock ACE (CRYPTO_DEV_PADLOCK [=y])
Selects: CRYPTO_BLKCIPHER && CRYPTO_AES
Symbol: CRYPTO_DEV_PADLOCK_SHA [=y]
Prompt: PadLock driver for SHA1 and SHA256 algorithms
Defined at drivers/crypto/Kconfig:39
Depends on: CRYPTO && CRYPTO_HW && CRYPTO_DEV_PADLOCK
Location:
-> Cryptographic API (CRYPTO [=y])
-> Hardware crypto devices (CRYPTO_HW [=y])
-> Support for VIA PadLock ACE (CRYPTO_DEV_PADLOCK [=y])
Selects: CRYPTO_SHA1 && CRYPTO_SHA256
Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express [14e4:1713] (rev 02)
Symbol: TIGON3 [=y]
Prompt: Broadcom Tigon3 support
Defined at drivers/net/Kconfig:2246
Depends on: NETDEVICES && NETDEV_1000 && PCI
Location:
-> Device Drivers
-> Network device support (NETDEVICES [=y])
-> Ethernet (1000 Mbit) (NETDEV_1000 [=y])
Selects: PHYLIB
VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) (rev 20)
Symbol: SND_HDA_CODEC_REALTEK [=y]
Prompt: Build Realtek HD-audio codec support
Defined at sound/pci/hda/Kconfig:42
Depends on: SOUND && !M68K && SND && SND_PCI && SND_HDA_INTEL
Location:
-> Device Drivers
-> Sound card support (SOUND [=m])
-> Advanced Linux Sound Architecture (SND [=m])
-> PCI sound devices (SND_PCI [=y])
-> Intel HD Audio (SND_HDA_INTEL [=m])
Symbol: SND_HDA_CODEC_ANALOG [=y]
Prompt: Build Analog Device HD-audio codec support
Defined at sound/pci/hda/Kconfig:54
Depends on: SOUND && !M68K && SND && SND_PCI && SND_HDA_INTEL
Location:
-> Device Drivers
-> Sound card support (SOUND [=m])
-> Advanced Linux Sound Architecture (SND [=m])
-> PCI sound devices (SND_PCI [=y])
-> Intel HD Audio (SND_HDA_INTEL [=m])
and generic HD-audio codec parser
VIA Technologies, Inc. Secure Digital Memory Card Controller (rev 01)
VIA SD/MMC Card Reader Driver comes with kernels starting from 2.6.31
linux/drivers/mmc/host/Makefile for via
Symbol: MMC_VIA_SDMMC [=m]
Prompt: VIA SD/MMC Card Reader Driver
Defined at drivers/mmc/host/Kconfig:245
Depends on: MMC && PCI
Location:
-> Device Drivers
-> MMC/SD/SDIO card support (MMC [=y])
VIA Technologies, Inc. VX800/VX820 Chrome 9 HC3 Integrated Graphics [1106:1122] (rev 11)
I use openchrome opensource driver. It gives me working xvideo and 2D (no 3D and hardware mpeg for now). I saw some guys used proprietary via drivers, it gives them 3D and mpeg, but it's for old kernels and xserver version.
my xorg.conf
# xorg.conf (X.Org X Window System server configuration file)
Section "Module"
Load "bitmap"
Load "extmod"
Load "int10"
Load "vbe"
Load "dri"
Load "glx"
Load "dbe"
Load "v4l"
Load "synaptics"
EndSection
Section "Monitor"
Identifier "LCD-Panel"
Option "DPMS"
HorizSync 60
VertRefresh 31.5-90
modeline "1280x800@60" 83.46 1280 1344 1480 1680 800 801 804 828 -hsync +vsync
EndSection
Section "Device"
Identifier "VX800"
BusID "PCI:00:01:0"
BoardName "VIA Chrome9 HC3"
VendorName "VIA Tech"
Driver "openchrome"
Option "AccelMethod" "EXA"
Option "ExaScratchSize" "8192"
# Option "ExaNoComposite" "On"
Option "EnableAGPDMA" "true"
Option "ExaNoComposite" "true"
Option "MigrationHeuristic" "greedy"
Option "HWCursor" "on"
Option "VBEModes" "Off"
Option "VBESaveRestore" "Off"
EndSection
Section "Screen"
Identifier "Screen0"
Device "VX800"
Monitor "LCD-Panel"
DefaultDepth 24
SubSection "Display"
Modes "1280x800"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Section "DRI"
Group "video"
Mode 0666
EndSection
A bit more info in previous post.
Update: no more need for broadcom driver, as fully opensource driver b43 works fine and better (I had broadcom driver issues with monitoring, kismet and TKIP (AES) encryption problem with one router, and never encountered any problems with b43). You just need to install proper firmware for it (I followed "You are using the b43 driver with an LP-PHY card (e.g. BCM4312)" section).
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Comments
model name : VIA Nano processor U2250 (1.6GHz Capable)
I thought that the U2250 runs at 1.3GHz, what does this 1.6 mean here? Is there a SpeedStep like function on these VIA processors as well? And if it is 1.6 capable, what is the rationale of selling it as 1.3GHz systems? Any idea?
$ cat /proc/cpuinfo | grep MHz
cpu MHz : 1595.886
And yes, it supports something like SpeedStep and scales from 800 to 1600 with standard linux tools. I don't know about selling it as 1.3GHz, may be previous stepping has 1.3GHz only or may be it's the power consuming optimal, no idea.
Oddly archlinux, openbsd and others OS detect the via nano U2250 using cpufreq with speedstep (intel stuff).
So you just have to modprobe cpufreq-acpi .
But if you have an older bios version and you want to have up to 3G of ram support in your Ideapad S12 VIA NANO this is the only way to get it. And according to the bios update note:
General Information:
20CN23WW:
1. Support 3G RAM.
this is the only fix it introduces.
http://consumersupport.lenovo.com/en/Dr
Anyway that's really not my business to make decisions for you and I'm not responsible for any damage this bios update could bring to your device.
My S12 just arrived, but I can only use the VIA PATA driver to access the disc and don't find any options in the BIOS to change the disc setting...
How did you switch to compatible mode? I read there are some key combos which might give more advanced options in the BIOS, but I didnt find any info on this.
I am going to use Gentoo in a 64bit flavour. Currently I booted via PXE (which is not mentioned in the BIOS either but works if you move the HD entry to the bottom of the boot menu) and in the process of resizing the disk to make space for an lvm which I will be encrypting with aes-xts-plain.
Gentoo users might want to check this thread: http://forums.gentoo.org/viewtopic-t-728
I think I am going to to setup an article on gentoo-wiki.com later.
Thanks for all your info here! Regards, the_mgt
So, I didn't enable any sata compatibility and don't think it would give any benefits. I use pata driver with libata and it works pretty well for me with dm_crypt and padlock.
# lsmod | grep libata
libata 152308 3 ata_generic,pata_acpi,pata_via
scsi_mod 92676 4 usb_storage,sg,sd_mod,libata
# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 224 MB in 3.01 seconds = 74.50 MB/sec
(note I have hard drive replaced, stock one is slower).
Good luck with your gentoo. I've been gentoo fan for few years, now I have no cpu power as I have just S12 and other rather weak laptop to build system myself (and no time). Using x86_64 gives you enough optimized packages, and you can always customize just some packages you need to (I like arch ports).
Yes, dm_crypt/lvm work fine now. Mostly everything else, too. I am now trying to get the cam working. We seem to have different ones, mine shows as: Bus 001 Device 002: ID 5986:0241 Acer, Inc
lsusb -v tells me the following:
idVendor 0x5986 Acer, Inc
idProduct 0x0241
bcdDevice 3.10
iManufacturer 3 BISON Corporation
iProduct 1 Lenovo EasyCamera