Difference between revisions of "Install Mandriva 2009.0 on a ThinkPad W500"
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* fglrx | * fglrx | ||
** changing runlevel to 3 (init 3) leaves you with X eating 100% CPU | ** changing runlevel to 3 (init 3) leaves you with X eating 100% CPU | ||
+ | ** huge performance issues when switching between virtual desktops, switching can take a couple of seconds with 100% CPU again | ||
− | So if battery life | + | So if battery life and 3D are important for you, you should probably use the intel driver, but I am fine with the radeonhd driver for now. And fglrx is nothing but proprietary nonsense, IMHO ... for a '''commercial''' driver this is ridiculous. |
[[Category:W500]][[Category:Mandriva]] | [[Category:W500]][[Category:Mandriva]] |
Revision as of 19:24, 21 January 2009
W500 this is work under progress
BIOS Issues
Linux (ie Xorg) currently lacks the support for on-the-fly switching of GPUs. It not only does not support switching, you also have to expicically turn off switching in BIOS. Go to Config->Display->Graphics Device and DISABLE OS detection of switchable graphics.
If you don't disable OS detection, linux will see two graphic adapters (try it with lspci) and will be confused on which one to use, leading to random weird side effects such as hangs and worse.
- AHCI
I also had to turn off AHCI in Config->SATA and used Compatibility Mode instead, otherwise the kernel would not boot occasionally.
- Intel Virtualization
The T9400 and up CPUs also support advanced Intel Virtualization technologies. Just don't turn on VT-d (disk I/O virtualization) in BIOS, otherwise WLAN any a couple of other things will not work and even freeze your system, see https://qa.mandriva.com/show_bug.cgi?id=44711
Things not working/issues
As I've found most of the components are just working out of the box, I will only list the issues I have found so far:
- Active Protection System
- HD-APS is not working for me, probably due to a BIOS bug, see http://bugzilla.kernel.org/show_bug.cgi?id=12221
- some kind of workaround is to add pnpacpi=off to the kernel boot line, but that turns off ACPI, which is no real option
- HD-APS is not working for me, probably due to a BIOS bug, see http://bugzilla.kernel.org/show_bug.cgi?id=12221
- Suspend/Resume
- while suspending works fine, resuming always ended with a blank screen, workaround below
- muted audio not shown in alsa mixer
- when you use the built in "mute audio" button on the ThinkPad keyboard, this is not show in any audio mixer I've tried. So if you don't hear a sound, give the "mute audio" button a try :-)
- 3D and radeonhd
- the radeonhd driver (still) does not support 3D acceleration
Suspend/Resume problem
If resuming just leaves you with a blank black display, try the following:
echo "ADD_PARAMETERS='--quirk-vbe-post'" > /etc/pm/config.d/w500_vbe_post
Display / Xorg
The laptop comes with Switchable Graphics, so you can choose on your own which GPU to use:
- intel
- consumes the least energy
- DVI connector on the ThinkPad Advanced Mini Dock ist not recognoized
- radeonhd
- consumes the most energy
- lack of 3D support
- fglrx
- changing runlevel to 3 (init 3) leaves you with X eating 100% CPU
- huge performance issues when switching between virtual desktops, switching can take a couple of seconds with 100% CPU again
So if battery life and 3D are important for you, you should probably use the intel driver, but I am fine with the radeonhd driver for now. And fglrx is nothing but proprietary nonsense, IMHO ... for a commercial driver this is ridiculous.