ubuntu-x-swat team mailing list archive

[Geir Ove Myhr <gomyhr@xxxxxxxxx>]

Oded, I also get a complaint that i915.modeset=0 is an unknown boot
option when adding it to the kernel command line. It still disables KMS,
though.

The reason that you cannot remove i915 while the system is running is
that the module is responsible for _all_ modesetting on the system, not
only for X. This is one of its advantages - all the mode setting is
coordinated from one piece of code. On my computer the VT fonts are
different when KMS is enabled. One easy (but probably not standard) way
of recognizing if KMS is used is to look at the display names in the
output of xrandr and Xorg.0.log. UMS (Userland mode setting) uses names
like LVDS, VGA, VGA-1, etc. but KMS uses LVDS1, VGA1, etc. There's
probably something in dmesg output that gives away KMS as well.

Even if you don't see any difference with UMS (i.e. KMS disabled),
Xorg.0.log and the xrandr output for that case may be useful for someone
who knows what to look for.

-- 
[GM45] Default 60Hz display mode drives LVDS incorrectly
https://bugs.launchpad.net/bugs/398026
You received this bug notification because you are a member of Ubuntu-X,
which is the registrant for xf86-video-intel.