Re: buying a new laptop

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On 31/08/11 07:47, Atte André Jensen wrote:

I saw a secondhand ThinkPad X61s (dual-core 1.6Ghz, 3Gb ram, 12" display) from a well known online shop I trust and used many times (bought my current laptop there). There's 6 months warrenty, and my general impression with ThinkPads is that they have good build quality, it's the only laptop I would consider buying used. It has firewire so...

I have had an X61s for about 3 years now, and it's still working fine. I really like having a small, neat and easily portable machine. Also the nipple mouse suits me because you don't have to take your hands away from the keyboard to use the mouse. Bear in mind that there's no onboard CD/DVD drive.

I use an M-Audio Firewire solo card with it. It runs well at 4ms jack latency, and will run at 2ms with some xruns. This is without a great deal of effort put into tuning my system for low latency, so I could almost certainly do better than that.

The only thing that I think could cause problems for high end audio work is that the firewire interrupt is shared with the soundcard and one of the usb ports. (See below).

The screen size could be a bit limiting (1024x768), but you could always get an external monitor for some extra space.

hope this helps,

andy baxter

andy@monkey:/local/home/andy$ cat /proc/interrupts
           CPU0       CPU1
  0:    7989798    1085755   IO-APIC-edge      timer
  1:       1563       3269   IO-APIC-edge      i8042
  8:          1          0   IO-APIC-edge      rtc0
  9:       1003        357   IO-APIC-fasteoi   acpi
 12:     153176         72   IO-APIC-edge      i8042
 14:          0          0   IO-APIC-edge      ata_piix
 15:          0          0   IO-APIC-edge      ata_piix
 16:          0          0   IO-APIC-fasteoi   uhci_hcd:usb5, yenta
17: 612 127 IO-APIC-fasteoi uhci_hcd:usb6, HDA Intel, ohci1394
 18:          0          0   IO-APIC-fasteoi   mmc0
 19:          0          0   IO-APIC-fasteoi   ehci_hcd:usb2
 20:        789        150   IO-APIC-fasteoi   uhci_hcd:usb3
 21:          0          0   IO-APIC-fasteoi   uhci_hcd:usb4
 22:         14          1   IO-APIC-fasteoi   ehci_hcd:usb1
 24:          0          0   PCI-MSI-edge      pciehp
 25:          0          0   PCI-MSI-edge      pciehp
 26:          1       4067   PCI-MSI-edge      eth0
 27:     109707       3151   PCI-MSI-edge      ahci
 28:     137729         27   PCI-MSI-edge      i915@pci:0000:00:02.0
 29:     266143      43633   PCI-MSI-edge      iwlagn
NMI:          0          0   Non-maskable interrupts
LOC:    1732598    4063205   Local timer interrupts
SPU:          0          0   Spurious interrupts
PMI:          0          0   Performance monitoring interrupts
PND:          0          0   Performance pending work
RES:     420294     484647   Rescheduling interrupts
CAL:         93        214   Function call interrupts
TLB:      11253      11901   TLB shootdowns
TRM:         44         44   Thermal event interrupts
THR:          0          0   Threshold APIC interrupts
MCE:          0          0   Machine check exceptions
MCP:         61         59   Machine check polls
ERR:          0
MIS:          0
andy@monkey:/local/home/andy$ lspci -v
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
    Subsystem: Lenovo Device 20b3
    Flags: bus master, fast devsel, latency 0
    Capabilities: <access denied>
    Kernel driver in use: agpgart-intel
    Kernel modules: intel-agp

00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
    Subsystem: Lenovo Device 20b5
    Flags: bus master, fast devsel, latency 0, IRQ 28
    Memory at f8000000 (64-bit, non-prefetchable) [size=1M]
    Memory at e0000000 (64-bit, prefetchable) [size=256M]
    I/O ports at 1800 [size=8]
    Capabilities: <access denied>
    Kernel driver in use: i915
    Kernel modules: i915

00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
    Subsystem: Lenovo Device 20b5
    Flags: bus master, fast devsel, latency 0
    Memory at f8100000 (64-bit, non-prefetchable) [size=1M]
    Capabilities: <access denied>

00:19.0 Ethernet controller: Intel Corporation 82566MM Gigabit Network Connection (rev 03)
    Subsystem: Lenovo Device 20de
    Flags: bus master, fast devsel, latency 0, IRQ 26
    Memory at f8200000 (32-bit, non-prefetchable) [size=128K]
    Memory at f8225000 (32-bit, non-prefetchable) [size=4K]
    I/O ports at 1840 [size=32]
    Capabilities: <access denied>
    Kernel driver in use: e1000e
    Kernel modules: e1000e

00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
    Subsystem: Lenovo Device 20aa
    Flags: bus master, medium devsel, latency 0, IRQ 20
    I/O ports at 1860 [size=32]
    Kernel driver in use: uhci_hcd

00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
    Subsystem: Lenovo Device 20aa
    Flags: bus master, medium devsel, latency 0, IRQ 21
    I/O ports at 1880 [size=32]
    Kernel driver in use: uhci_hcd

00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03) (prog-if 20)
    Subsystem: Lenovo Device 20ab
    Flags: bus master, medium devsel, latency 0, IRQ 22
    Memory at f8426c00 (32-bit, non-prefetchable) [size=1K]
    Capabilities: <access denied>
    Kernel driver in use: ehci_hcd

00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
    Subsystem: Lenovo Device 20ac
    Flags: bus master, fast devsel, latency 0, IRQ 17
    Memory at f8220000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: HDA Intel
    Kernel modules: snd-hda-intel

00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
    I/O behind bridge: 00002000-00002fff
    Memory behind bridge: f4000000-f5ffffff
    Prefetchable memory behind bridge: 00000000f8500000-00000000f85fffff
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
    I/O behind bridge: 00003000-00003fff
    Memory behind bridge: f6000000-f7ffffff
    Prefetchable memory behind bridge: 00000000f8600000-00000000f86fffff
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
    Subsystem: Lenovo Device 20aa
    Flags: bus master, medium devsel, latency 0, IRQ 16
    I/O ports at 18a0 [size=32]
    Kernel driver in use: uhci_hcd

00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
    Subsystem: Lenovo Device 20aa
    Flags: bus master, medium devsel, latency 0, IRQ 17
    I/O ports at 18c0 [size=32]
    Kernel driver in use: uhci_hcd

00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03) (prog-if 20)
    Subsystem: Lenovo Device 20ab
    Flags: bus master, medium devsel, latency 0, IRQ 19
    Memory at f8427000 (32-bit, non-prefetchable) [size=1K]
    Capabilities: <access denied>
    Kernel driver in use: ehci_hcd

00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3) (prog-if 01)
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=05, subordinate=08, sec-latency=32
    I/O behind bridge: 00004000-00007fff
    Memory behind bridge: d4000000-d7efffff
    Prefetchable memory behind bridge: 00000000d8000000-00000000dbffffff
    Capabilities: <access denied>

00:1f.0 ISA bridge: Intel Corporation 82801HBM (ICH8M-E) LPC Interface Controller (rev 03)
    Subsystem: Lenovo Device 20b6
    Flags: bus master, medium devsel, latency 0
    Capabilities: <access denied>
    Kernel modules: iTCO_wdt

00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03) (prog-if 8a [Master SecP PriP])
    Subsystem: Lenovo Device 20a6
    Flags: bus master, medium devsel, latency 0, IRQ 16
    I/O ports at 01f0 [size=8]
    I/O ports at 03f4 [size=1]
    I/O ports at 0170 [size=8]
    I/O ports at 0374 [size=1]
    I/O ports at 18e0 [size=16]
    Kernel driver in use: ata_piix

00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03) (prog-if 01)
    Subsystem: Lenovo Device 20a7
    Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 27
    I/O ports at 1c30 [size=8]
    I/O ports at 1c24 [size=4]
    I/O ports at 1c28 [size=8]
    I/O ports at 1c20 [size=4]
    I/O ports at 1c00 [size=32]
    Memory at f8426000 (32-bit, non-prefetchable) [size=2K]
    Capabilities: <access denied>
    Kernel driver in use: ahci
    Kernel modules: ahci

00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
    Subsystem: Lenovo Device 20a9
    Flags: medium devsel, IRQ 11
    Memory at f8427400 (32-bit, non-prefetchable) [size=256]
    I/O ports at 1c40 [size=32]
    Kernel modules: i2c-i801

03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)
    Subsystem: Intel Corporation Device 1111
    Flags: bus master, fast devsel, latency 0, IRQ 29
    Memory at f7f00000 (64-bit, non-prefetchable) [size=8K]
    Capabilities: <access denied>
    Kernel driver in use: iwlagn
    Kernel modules: iwlagn

05:00.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba)
    Subsystem: Lenovo Device 20c6
    Flags: bus master, medium devsel, latency 168, IRQ 16
    Memory at d7eff000 (32-bit, non-prefetchable) [size=4K]
    Bus: primary=05, secondary=06, subordinate=07, sec-latency=176
    Memory window 0: d8000000-dbfff000 (prefetchable)
    Memory window 1: 80000000-83fff000
    I/O window 0: 00004000-000040ff
    I/O window 1: 00004400-000044ff
    16-bit legacy interface ports at 0001
    Kernel driver in use: yenta_cardbus
    Kernel modules: yenta_socket

05:00.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04) (prog-if 10)
    Subsystem: Lenovo Device 20c7
    Flags: bus master, medium devsel, latency 64, IRQ 17
    Memory at d7efe800 (32-bit, non-prefetchable) [size=2K]
    Capabilities: <access denied>
    Kernel driver in use: ohci1394
    Kernel modules: firewire-ohci, ohci1394

05:00.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21)
    Subsystem: Lenovo Device 20c8
    Flags: bus master, medium devsel, latency 64, IRQ 18
    Memory at d7efe400 (32-bit, non-prefetchable) [size=256]
    Capabilities: <access denied>
    Kernel driver in use: sdhci-pci
    Kernel modules: sdhci-pci

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