Re: PROBLEM: ASUS GU501GM Elantech touchpad not detected

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Hi Benjamin,

> Why do always people want to blacklist those drivers when they have a
good chance to make their device working?

My apologies.  I wasn't very clear.  My previous dmesg and other
outputs were done without anything blacklisted.  I only did
blacklisting in an entirely separate endeavor based on several things
I'd read that were workarounds for older Elantech touchpads.

The good news is, I managed to get Kernel 4.17 RC 5 up and running
last night.  The bad news is, the touchpad was still not detected.
Here is the /proc/version info:

Linux version 4.17.0-041700rc5-generic (kernel@tangerine) (gcc version
7.3.0 (Ubuntu 7.3.0-18ubuntu2)) #201805132030 SMP Mon May 14 00:32:50
UTC 2018

dmesg and acpidump output are attached in the zip file
"kernel_4.17_RC5_report.zip" at the bottom comment of the Launchpad
bug report here:

https://bugs.launchpad.net/ubuntu/cosmic/+source/linux/+bug/1770862

Thank you for your help!

On Wed, May 16, 2018 at 2:58 AM, Benjamin Tissoires
<benjamin.tissoires@xxxxxxxxx> wrote:
> Hi,
>
> On Tue, May 15, 2018 at 5:58 AM, Were Turtle <wereturtledev@xxxxxxxxx> wrote:
>> [1.] One line summary of the problem:
>> ASUS GU501GM Elantech touchpad not detected
>>
>> [2.] Full description of the problem/report:
>> The touchpad on the new ASUS GU501GM (the junior Zephyrus M that is a
>> Best Buy exclusive) does not seem to be detected whatsoever with
>> "xinput list". Windows 10 device manager shows the touchpad as
>> ELAN:1201, HID_DEVICE:00FF1006.  I've tried various combinations of
>> i8042.* kernel parameters, as well as psmouse.proto=bare and different
>> combinations for acpi_osi, but to no avail. I've also tried
>> blacklisting i2c_hid and hid_multitouch. I've tried the mainstream
>
> Why do always people want to blacklist those drivers when they have a
> good chance to make their device working?
>
> There are multiple reports of issues with recent Asus laptops. For instance:
> https://www.spinics.net/lists/linux-input/msg56193.html
> https://bugzilla.redhat.com/show_bug.cgi?id=1510649
>
> and others are related to ELAN1200 devices that are not enumerated
> correctly by i2c-hid:
> https://bugzilla.redhat.com/show_bug.cgi?id=1543769
>
> The reason in the latter case is because of the IRQ pins that are not
> correctly mapped IIRC. It should have been fixed in a v4.17-rc kernel
> though.
>
> Could you provide a full dmesg without any blacklisted driver so we
> see if there is an error somewhere?
>
> Also could you provide the output of acpidump as root so we have a
> better idea on how the touchpad is declared in the DSDT.
>
> Cheers,
> Benjamin
>
>> kernel 4.16.7, also to no avail. The latest release candidates (#4 and
>> #5) for 4.17 and 4.16.8 would not let me start X, though I noticed no
>> touchpad miracle while I was in the SDDM login screen (I'm on Kubuntu
>> 18.04).  (Sorry, I am too inexperienced to figure out why X won't
>> start on newer mainline kernels.  I was sure to uninstall the nvidia
>> drivers before installing them.)
>>
>> [3.] Keywords (i.e., modules, networking, kernel):
>>
>> [4.] Kernel version (from /proc/version):
>>
>> Linux version 4.16.7-041607-lowlatency (kernel@tangerine) (gcc version
>> 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #201805021131 SMP PREEMPT Wed May 2
>> 15:44:57 UTC 2018
>>
>> [5.] Output of Oops.. message
>> N/A
>>
>> [6.] A small shell script or example program which triggers the
>> problem (if possible)
>> N/A
>>
>> [X.] Other notes, patches, fixes, workarounds:
>> Please see all the "xinput list", dmesg, devices, and Xorg.0.log
>> outputs attached at
>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1770862
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