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Bug#875621: Still not fixed

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  Bug#875621: Still not fixed Han Boetes <hboetes@gmail.com> - 2018-09-14 09:20 +0200
    Bug#875621: Still not fixed Ben Hutchings <ben@decadent.org.uk> - 2018-09-15 15:10 +0200
      Bug#875621: Still not fixed Martin Garton <garton@gmail.com> - 2018-09-22 16:10 +0200

#62138 — Bug#875621: Still not fixed

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>
> Source: linux
> Source-Version: 4.13.10-1
> We believe that the bug you reported is fixed in the latest version of
> linux, which is due to be installed in the Debian FTP archive.


Dear maintainer,

With every new kernel release I hope these simple instructions from the
dmesg are followed:

psmouse serio2: synaptics: The touchpad can support a better bus than the
> too old PS/2 protocol. Make sure MOUSE_PS2_SYNAPTICS_SMBUS and RMI4_SMB are
> enabled to get a better touchpad experience.


But every time I check I see:

% grep -i rmi4_smb /boot/config-4.18.0-1-amd64
> # CONFIG_RMI4_SMB is not set


Why is it so hard to enable this kernel option?!

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#62148

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On Fri, 2018-09-14 at 09:16 +0200, Han Boetes wrote:
> > 
> > Source: linux
> > Source-Version: 4.13.10-1
> > We believe that the bug you reported is fixed in the latest version of
> > linux, which is due to be installed in the Debian FTP archive.
> 
> 
> Dear maintainer,
> 
> With every new kernel release I hope these simple instructions from the
> dmesg are followed:
> 
> psmouse serio2: synaptics: The touchpad can support a better bus than the
> > too old PS/2 protocol. Make sure MOUSE_PS2_SYNAPTICS_SMBUS and RMI4_SMB are
> > enabled to get a better touchpad experience.
> 
> 
> But every time I check I see:
> 
> % grep -i rmi4_smb /boot/config-4.18.0-1-amd64
> > # CONFIG_RMI4_SMB is not set
> 
> 
> Why is it so hard to enable this kernel option?!

We did it once before and it caused a regression (bug #880471).  So,
before we enable it again someone will need to investigate and check
that the regression won't happen again.

Ben.

-- 
Ben Hutchings
Computers are not intelligent.	They only think they are.

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#62211

As an additional data point, in case it's of any help, I can add that I 
also have problems due to CONFIG_RMI4_SMB being disabled. I'm using a 
Thinkpad X1 Carbon 6th generation machine.

I have rebuilt my kernel with CONFIG_RMI4_SMB enabled and everything is 
fine.

If there are still machines that have issues with this option enabled, 
isn't there a way to enable CONFIG_RMI4_SMB in the kernel and use module 
blacklisting wherever that module causes problems?

This would seem to be a reasonable way to make things work for everyone 
without anyone having to recompile kernels or kernel modules.

-- 
Martin.

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