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avx
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Joined: 21 Jun 2004
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PostPosted: Mon May 16, 2011 12:51 am    Post subject: [solved] touchpad refuses to work Reply with quote

On my Macbook (early 2011), the touchpad refuses to work.

The hardware should be handled by 'bcm5974', which the kernel loads once it detects the device. If I try to
Code:
cat /dev/input/eventX
(where of course X is the identifier of the touchpad), all I get is a
Quote:
No space left on device
error.

I tried various combinations of appletouch, bcm5974, evdev, but nothing works so far.

Trying evdev as driver for X11 gives this error
Code:
(EE) Unable to open evdev device "/dev/input/event9".
(EE) PreInit returned 2 for "bcm5974"

if I use the mtrack-driver, it gives
Code:
(EE) xf86OpenSerial: Cannot open device /dev/input/event9
  No space left on device.
(EE) mtrack: cannot open device
(EE) Couldn't init device "bcm5974"


Tried kernels gentoo-sources-2.6.38-r5, git-sources-2.6.39-r7, no difference. X.org is xorg-server-1.10.1.901, system is ~amd64 (up2date), boot is done via rEFIt->GRUB->Gentoo.

No errors in dmesg or the like, so I'm confused as to what could be the problem - of course, it's running fine in OS X.
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Last edited by avx on Fri Apr 13, 2012 12:29 pm; edited 1 time in total
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audiodef
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Joined: 06 Jul 2005
Posts: 5191

PostPosted: Mon May 16, 2011 1:27 pm    Post subject: Reply with quote

What if you use

INPUT_DEVICES="keyboard mouse"

in make.conf?
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avx
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PostPosted: Mon May 16, 2011 1:59 pm    Post subject: Reply with quote

How is that supposed to work, if it doesn't even work outside of X11? Anyway, I'll try that in a moment.
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avx
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PostPosted: Mon May 16, 2011 7:09 pm    Post subject: Reply with quote

As expected, didn't work.
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ballfire
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Joined: 16 Jul 2011
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PostPosted: Sat Jul 16, 2011 12:13 pm    Post subject: Custom Kernel Reply with quote

Are you building a custom kernel ?

I was having exactly this problem while creating my custom kernel for this notebook (also booting EFI)

Solved it by activating "Improved Transaction Translator scheduling" and "Root Hub Transaction Translators" under "EHCI HCD(USB 2.0) support" in the USB section of the kernel configuration.

Now it works flawlessly.

Greetings
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yahont
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Joined: 20 Apr 2004
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PostPosted: Fri Jul 22, 2011 1:35 pm    Post subject: Reply with quote

ballfire, THANX A LOT!
it's been a long time since I faced such "hard-to-guess-what-is-wrong" problem. You saved me.
Guys, who have Aspire One (like me), these 2 kernel options can save you, too.

avx, was it helpful for you. If so, could you mark the thread as [SOLVED].
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chandums
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Joined: 10 Oct 2011
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PostPosted: Mon Oct 10, 2011 6:37 pm    Post subject: Reply with quote

Thank you so much for this solution! I've been beating my head against the wall for around 12 hours on this problem. Such a simple fix, too!
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avx
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PostPosted: Fri Apr 13, 2012 12:29 pm    Post subject: Reply with quote

Yes, was helpfull, I did find that out eventually, but forgot all about this thread - marking solved.
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NextSux
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Joined: 27 Jan 2003
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Location: Czech Republic, Brno

PostPosted: Wed Nov 07, 2012 12:50 am    Post subject: works also for MacbookAir 5,2 Reply with quote

Thank you so much! Worked also for the same problem with touchpad on MacbookAir 5,2!
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