Difference between revisions of "Category:W540"
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* The current kernel does not support the card reader. There's no known workaround besides using an external reader. | * The current kernel does not support the card reader. There's no known workaround besides using an external reader. | ||
* You might want to use the kernel option {{bootparm|acpi_osi|'!Windows 2012'}} for better working brightness keys. | * You might want to use the kernel option {{bootparm|acpi_osi|'!Windows 2012'}} for better working brightness keys. | ||
| − | * To get the | + | * To get the TrackPoint button emulation working, edit your {{path|/etc/X11/xorg.conf.d/50-synaptics.conf}} according to the answer to [http://askubuntu.com/questions/370505/how-to-use-trackpoint-but-keep-touchpad-disabled-on-lenovo-thinkpad-e531 this question]. |
* The current kernel seems to have a problem recognizing some external USB drives. | * The current kernel seems to have a problem recognizing some external USB drives. | ||
Revision as of 02:35, 14 May 2014
ThinkPad W540This page gives an overview of the ThinkPad W540. Standard Features
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Linux Installation
As of 2014-02-124 the following problems exist with the W540 under opensuse 13.1 64bit Linux:
What is not working:
- monitors connected to the Ultra Doc.
- Audio port on Ultradoc (works on side of laptop)
Details: When running opensuse 13.1 x64, there are two Bumblebee repos, Do not mix them. The smithfarm/overman79 instructions work. Make sure you have the kernel dev pattern installed, as well as the kernel source.
There is another repo that looks more official and has a mixed set of packages, some newer and older than the overman79 repo. I don't know how to use the X11:Bumblebee repository yet.
It is able to drive two external monitors and the internal display using the two side ports. The thunderbolt connector works correctly, including audio though the thunderbolt port via an HDMI adapter to a TV.
There are more problems to work around on other machines; probably, the BIOS version is making the difference. When installing opensuse 13.1 (64 bit) on a machine with BIOS version 2.09, "OS Optimized Defaults" disabled in the BIOS setup, the following problems might occur:
- Activating the NVIDIA GPU causes memory corruption leading to crashes and file system corruption. This might be related to this issue. A workaround is using only intel graphics using the kernel options
i915.modeset=1nouveau.modeset=0
and probablyrdblacklist=nouveauand blacklisting the nouveau module in /etc/modprobe.d. - Under unknown circumstances, the USB subsystem dies completely. This might be related to the integrated camera and power saving (using the "tunables" in powertop might also have provoked this behaviour). This does not seem to happen when using the kernel options
acpi_osi='!Windows 2012'apm=offpowersaved=offnohz=offusbcore.autosuspend=-1
Probably,nohz=offis sufficient. - The current kernel does not support the card reader. There's no known workaround besides using an external reader.
- You might want to use the kernel option
acpi_osi='!Windows 2012'for better working brightness keys. - To get the TrackPoint button emulation working, edit your /etc/X11/xorg.conf.d/50-synaptics.conf according to the answer to this question.
- The current kernel seems to have a problem recognizing some external USB drives.
Resources
Pages in category "W540"
The following 36 pages are in this category, out of 36 total.
S
- Serial Ultrabay Slim Blu-ray Drive
- Serial Ultrabay Slim Blu-ray Drive II
- Serial Ultrabay Slim CD-RW/DVD-ROM Combo Drive II
- Serial Ultrabay Slim DVD Multi-Burner III
- Serial Ultrabay Slim DVD Multi-Burner IV
- Serial Ultrabay Slim DVD Multi-Burner V
- Serial Ultrabay Slim DVD-ROM Drive
- Serial Ultrabay Slim DVD-ROM Drive II
- Serial Ultrabay Slim HDD Adapter III
- Serial Ultrabay Slim Travel Bezel
