[ubuntu-x] i8xx, again!
gregbair at gmail.com
Mon Sep 6 06:25:44 BST 2010
On Mon, Sep 6, 2010 at 12:29 AM, Christopher James Halse Rogers <
raof at ubuntu.com> wrote:
> Hello X wranglers!
> It's that time of the release, again(!), where it's too late for a
> magical fix for i8xx to appear, and we need to work out the least-bad
> option to use as the default.
> It, again(!), looks like there's hope for the next release with Chris
> Wilson's accel-less shadow branch, but there are still problems with
> that branch, it's not mainline, and it's too late to switch for
> This, as I count it, leaves us with 3 options:
> 1) Blacklist KMS on the cards, as we did for Lucid, and let VESA drive
> them. This is my current favourite, and what we've got in the kernel
> * Users get the VESA driver, which should work.
> * Laptops might not have the panel's native modes in their VESA bios,
> leading to suboptimal resolution or -vesa not working at all (there's a
> report of -vesa failing completely).
> * Users need to fiddle with grub options or modprobe config to load the
> intel driver.
> 2) Don't blacklist KMS, but drop these cards from X's autoload list.
> This will let fbdev take over.
> * If KMS brings up the native mode, users get the native mode.
> * Resolution can be set on the kernel command line.
> * Dual-head will work in clone mode if second head is connected at boot
> * Can't change resolution at runtime
> * Non-default resolutions *must* be set on the kernel command line.
> * User needs to generate an xorg.conf to use the intel driver.
> 3) Do nothing, let the intel driver load on kms.
> * If it doesn't crash, everything works.
> * Lots of crashes.
> I favour option (1). I think that the ability to switch resolution is
> likely to be more important than starting in the best possible
> resolution. I also think that users are more likely to be familiar with
> the VESA driver, and be more likely to ask useful questions.
> We'll release-note this, again(!).
> Does anyone have any further insights or better ideas?
> Ubuntu-x mailing list
> Ubuntu-x at lists.ubuntu.com
> Modify settings or unsubscribe at:
More information about the Ubuntu-x