Difference between revisions of "Category:T510"

Linux Installation

As of 2010-05-04 the following problems exist with the T510 under Linux:

• No support for display brightness controls when using binary video driver
• 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. Also, brightness is not lowered and raised in the same increments (on Archlinux).
• 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
  • This can be resolved by updating the BIOS to a revision later than 1.18-1.10 . http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-74267
  • Suspend to RAM and Hibernate( suspend to disk ) works very well under Fedora 13 BETA (kernel 2.6.33), using both the proprietary Nvidia driver and the open source Nouveau driver.

As of 2 October 2010, with updated BIOS and all patches available for Ubuntu 10.04, the installation goes well. Problems noted are few:

• Brighness is still an issue as listed above, but the fix does work.
• USB 3.0 drivers are "iffy" in that some things work very well (external hard drives, for example) but others (external SB adpaters) cause low bandwith warnings in the kernel log, and won't work correctly (where they do on other systems).
• The Touchpad does not always ignore input while typing.

• If using the proprietary Nvidia driver (NVIDIA Driver Version 260.19.06) one has to set "Discrete" in BIOS. Linux seems to have some problems with Switchable Graphics (Optimus).