Problemas Ubuntu + JMicron 20360/20363

[andre.rigon]

Ola pessoal,

comprei a minha maquina em abril. Naquela época, tentei instalar o ubuntu nativamente sem sucesso.
Acabei optando pelo wubi, no qual consigo roda-lo sem problemas e com excelente desempenho, assim como a instalacao do vista q possuo.
Quando instalo o ubuntu (tentei tambem com o fedora e o slackware), o desempenho do sistema é pífio, impossível e se utilizar.
O hd faz muito barulho, e é como se o kernel subutilizasse o disco. Tentei recompilar o kernel, mas n obtive exito.
Às vésperas do lancamento do intrepid, tentei instalar a versao RC do mesmo, e o problema persiste.

Nao consigo imaginar qual é o problema, ja que minha instalacao do vista e a instalacao do wubi rodam sem problemas.

QQ sugestao é mto bem vinda, ha tempos tento instalar o ubuntu nativo sem sucesso.

Segue abaixo informacoes do meu hardware:

Especificacoes da maquina:

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ASUS P5K PREMIUM WI-FI
Core 2 Quad 6660
4GB RAM DDR2
HD 500GB samsumg controlador JMicron 20360/20363


Teste do disco com hdparm -Tt:

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/dev/sda:
Timing cached reads:   6932 MB in  2.00 seconds = 3470.20 MB/sec
Timing buffered disk reads:  232 MB in  3.01 seconds =  77.04 MB/sec


Informacoes de dma:

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DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 udma7


lspci:

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00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port (rev 02)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 02)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation 82801IR (ICH9R) LPC Interface Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 4 port SATA IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02)
00:1f.5 IDE interface: Intel Corporation 82801I (ICH9 Family) 2 port SATA IDE Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation GeForce 8600 GT (rev a1)
02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 PCI-E Gigabit Ethernet Controller (rev 12)
03:00.0 SATA controller: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 03)
03:00.1 IDE interface: JMicron Technologies, Inc. JMicron 20360/20363 AHCI Controller (rev 03)
05:03.0 FireWire (IEEE 1394): Agere Systems FW323 (rev 70)
05:04.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8110SC/8169SC Gigabit Ethernet (rev 10)


hdparm -I /de/sda

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/dev/sda:

ATA device, with non-removable media
Model Number:       SAMSUNG HD501LJ                         
Serial Number:      S0MUJDWQ146326     
Firmware Revision:  CR100-12
Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5
Standards:
Used: ATA-8-ACS revision 3b
Supported: 8 7 6 5
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors:   16514064
LBA    user addressable sectors:  268435455
LBA48  user addressable sectors:  976773168
device size with M = 1024*1024:      476940 MBytes
device size with M = 1000*1000:      500107 MBytes (500 GB)
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 16
Recommended acoustic management value: 254, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 udma7
     Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
     Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
Enabled Supported:
   * SMART feature set
    Security Mode feature set
   * Power Management feature set
   * Write cache
   * Look-ahead
   * Host Protected Area feature set
   * WRITE_BUFFER command
   * READ_BUFFER command
   * NOP cmd
   * DOWNLOAD_MICROCODE
    SET_MAX security extension
   * Automatic Acoustic Management feature set
   * 48-bit Address feature set
   * Device Configuration Overlay feature set
   * Mandatory FLUSH_CACHE
   * FLUSH_CACHE_EXT
   * SMART error logging
   * SMART self-test
   * General Purpose Logging feature set
   * 64-bit World wide name
   * WRITE_UNCORRECTABLE_EXT command
   * Segmented DOWNLOAD_MICROCODE
   * SATA-I signaling speed (1.5Gb/s)
   * SATA-II signaling speed (3.0Gb/s)
   * Native Command Queueing (NCQ)
   * Host-initiated interface power management
   * Phy event counters
    DMA Setup Auto-Activate optimization
    Device-initiated interface power management
   * Software settings preservation
   * SMART Command Transport (SCT) feature set
   * SCT Long Sector Access (AC1)
   * SCT LBA Segment Access (AC2)
   * SCT Error Recovery Control (AC3)
   * SCT Features Control (AC4)
   * SCT Data Tables (AC5)
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
supported: enhanced erase
168min for SECURITY ERASE UNIT. 168min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 5000f00db146326
NAA : 5
IEEE OUI : f0
Unique ID : 0db146326
Checksum: correct



Desde já agradeço,

André