Difference between revisions of "Category:W510"

Linux Installation

As of 2010-03-01 the following problems exist with the W510 under Linux:

• Audio on some W510's has been "destroyed" after running for a while. It has been confirmed that speakers have melted in t400s and t410s as well, this is unrelated to Linux.
• nVidia FX 880M requires driver >= 195.36.15. Earlier versions have stability or graphics corruption problems.
• To enable brightness control in X, append 'Option "RegistryDwords" "EnableBrightnessControl=1"' to the Device-Section of xorg.conf, orginal source: http://www.nvnews.net/vbulletin/showthread.php?p=2204839#post2204839. This may result in a high-pitched whine after lowering the brightness within X. Brightness may not be lowered and raised in the same increments on Archlinux.
• Suspend not implemented yet in USB 3.0 (xhci) driver - system cannot suspend unless driver is unloaded first - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/522998
• System can only resume from suspend once - acpi related kernel crash occurs on resume (but system continues to operate), next resume shows BIOS screen and hangs - https://bugzilla.kernel.org/show_bug.cgi?id=15407
• Lenovo has issued a www-307.ibm.com/pc/support/site.wss/MIGR-74858.html BIOS update that fixes the 2nd suspend problem (c.f. bugs.launchpad.net/bugs/532374 Ubuntu bug tracker)
• TEMPORARY WORKAROUND for suspend issues: Use kernel > 2.6.33 mainline and add "acpi_sleep=sci_force_enable" to kernel arguments. This allows the system to suspend and resume multiple times without issue, however it doesn't fix it the "right" way. Lenovo BIOS update mentioned above will eliminate the need for this step.
• Wired networking stuck at 10Mbit without manual change using ethtool. For Ubuntu Karmic this can easily be fixed by manually downloading and installing the e1000e driver from Intel. After installing this driver however, the wireless stopped working me.

(NOT true for me on kernel 2.6.33 ethtool says " Speed: 1000Mb/s " -mstragowski)

• Archlinux cannot easily be configured, as the wireless and ethernet cards both require drivers that are not present in the 2009.08 release. (This may be a problem for other distros, as well.)
• While Turbo Boost IS working properly with recent distros, built in Linux utilities do not currently show Turbo Boost activity. Intel Powertop or i7z will show actual CPU state properly, including Turbo Boost and advanced C-states. Can be verified running Ubuntu Lucid and compiling a kernel or other tasks, WHILE ON AC POWER.
• 2-finger scroll on touchpad not working even wtih gpointing-device-settings
• The fingerprint reader (USB ID 147e:2016) is recognized by fprint and should be supported. However, attempting to enroll a print results in an error "-22".

• If you find the flashing wireless LED annoying, you can change its behavior so it will be on steady whenever the radio is powered on, and off when the radio is off. Add "options iwlcore led_mode=1" to /etc/modprobe.d/iwlcore.conf to set the LED on steady, or you can set led_mode=0 to have it flash whenever there is wireless activity (default)

Workarounds:

• On Ubuntu Karmic, Wireless can be enabled by installing linux-backport-modules-karmic. This adds missing firmware for 6000-series cards. This does not seem to work with the 2.6.31-20 kernel but I have no problems in the 2.6.31-19.
• All Versions: System cannot suspend unless SUSPEND_MODULES="xhci" is added to /etc/pm/config.d/unload_modules (may need to create this file) Note that this does not resolve the "crash on second resume" problem.
• On archlinux, ethernet will work after one manually installs the newest kernel26 package, while wifi requires the appropriate microcode package, iwlwifi-6000-ucode.
• The Nouveau open source nVidia driver [1] works at full resolution without freezing (but without 3D acceleration). This driver is included in Ubuntu Lucid. Note that you may experience elevated (but safe) system temperatures when running Nouveau.
• Full touchpoint support can be activated by installing gpointing-device-settings - this allows middle click scroll, etc.
• To control brightness without the (admittedly minor) nvidia driver issues, do not add the EnableBrightnessControl option, but instead switch to a virtual console to change the brightness--this change will remain when you switch back to X.

Hardware notes

• The W510 ships with a large (nearly doubled size of the old 90W) 135W power supply. However, it is possible to plug old (90W) power supplies, but they get rather warm. Upon boot there's a notification message, that a power supply with reduced performance is connected.
• If the binary nVidia drivers are not installed the system runs about 10 degrees warmer and uses a few watts more power. It seems the open source 'nouveau' driver does not have power saving functionality with the nVidia chipset. The program "nvclock" might be able to alleviate this, but I haven't tried.
• A high pitched noise can sometimes be heard when the computer is running. I was informed that this is the CPU's power management unit. If it annoys you it can be disabled in the BIOS.
• The computer does not boot at all when some USB keyboards are plugged in at power on. This is a problem with the BIOS and not with Linux or Windows. The only solution is to unplug the keyboard and plug it in again once the laptop is past the BIOS screen and booting as normal.
• After upgrading to Ubuntu 10.04 the system hangs very often. Nothing unusual in dmesg or system logs. Seems to happen more often when using wireless. (see bug https://bugs.launchpad.net/bugs/576352)