Category:Z61t

Reviews

• z61t Linux review (Milosz Tanski), 2006-01-05

Linux

Most of the laptop features are currently supported by Linux. Kernel versions 2.6.17 and later are recommended.

Hardware support

Sound

Sound works with the snd-hda-intel module in the Linux kernel. Be aware that disabling the modem in the BIOS may break sound.

Virtualization

Intel Core Duo (Yonah) and Intel Core 2 Duo (Merom) supports Intel VT-x, but Z61t BIOS disables it, rendering this system unusable for KVM or Xen with unmodified guests. Avoid this model if you care about fully exploiting CPU features.

UPDATE 06/06/2007: Version 7FETA0WW (2.18): (New) A new Intel Virtualization Technology option is added to the CPU of the Config menu in BIOS Setup Utility. Note: The option is set to "disabled" after the BIOS update. Verified: It works. Thanks Lenovo. :)

IRDA

Make sure you either explicitly enable or disable the IRDA functionality in the BIOS (instead of having it be enabled but off). Otherwise the kernel IRDA driver will OOPS. Other than that it works fine.

Graphics

Requires xorg-x11 >= 7.1
xf86-video-i810(xorg i810 driver) >= 1.7.0
915resolution.

3-in-1 card reader

Support for the built-in memory card reader is provided by the tifm drivers.

ACPI

Suspend

As of kernel 2.6.17, suspend works, with the caveat that the SATA controller is set to compatibility mode in the BIOS (instead of AHCI mode). This is due to the fact that the kernel dosen't exactly support suspend/resume in the AHCI driver yet, and the AHCI module fails to turn the hard drives back on at resume time.

Patches for AHCI suspend are aviable at the following urls: Description Patch 1 Patch 2 Patch 3 Patch 4 Patch 5 Patch 6

Problems with Drivers

Certain driver modules are known to exhibit problems on suspend. These are:

• ipw3945: Intel wireless driver.
• sdhci: SD host controller interface driver.
• tifm: Memory card reader driver.

Depending on which combination of kernel and driver versions you're using, the above drivers may cause you problems. These drivers should be unloaded prior to suspend or your system may hang, requiring a power-cycle.