[ltp] Thinkpad x61 Tablet (irq 20: nobody cared)

[Henrique de Moraes Holschuh]

On Mon, 06 Aug 2007, Jan Gutter wrote:
> On Mon, 2007-08-06 at 19:40 +0100, Rob Kendrick wrote:
> > Jan Gutter wrote:
> > I'd rather it just worked, tbh :)
> 
> Yah, but you know the drill by now: Linux devs mostly only get their
> hands on hardware after release, while hardware vendors think there's no
> bugs in the system if Windows boots ;-)

That's just for vendors that consider us second-class citizens.  We get
Intel support in-kernel before the chips hit the streets, for example.
Vendors of medium and big iron also support Linux very, very well.

Other vendors have split-brain problems, such as HP: HP printer division
deploys support in HPLIP at about the time printers are hitting the streets
(i.e. Linux is a first-class citizen for HP printers), while HP scan
division is a Windows-only shop (Linux is unknown to them, not even a
second-class citizen)...

> > Snap.  The problem goes away by doing the suggested: adding the irqpoll
> > option to the kernel's command line.  This seems like an acceptable
> > workaround, but I am too happy to provide any assistance to anybody who
> > wants to track down the reason.
> 
> Unfortunately it seems to hang my laptop when I try that. I wonder if it
> might be different BIOS settings?

Looks like broken BIOS firmware to me, which is not surprising at all in a
very new X-series model.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh