Hello Tom,
your finding looks promising, I have built two kernels base on that: Bionic
4.15 and Focal 5.4
Could you give them a test to see if this can solve your problem? (Don't forget
to remove the i8042.noloop=1 option.)
https://people.canonical.com/~phlin/kernel/lp-1906128-C15B/
Thanks!
Changes for Bionic:
$ git diff
diff --git a/drivers/input/serio/i8042-x86ia64io.h
b/drivers/input/serio/i8042-x86ia64io.h
index 51bd2ebaa342..adb8b23a6393 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -223,6 +223,10 @@ static const struct dmi_system_id __initconst
i8042_dmi_noloop_table[] = {
DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
},
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ByteSpeed LLC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ByteSpeed Laptop C15B"),
+ },
},
{ }
};
Changes for Focal:
$ git diff
diff --git a/drivers/input/serio/i8042-x86ia64io.h
b/drivers/input/serio/i8042-x86ia64io.h
index 98f0c7729b75..837911a15e44 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -219,6 +219,10 @@ static const struct dmi_system_id __initconst
i8042_dmi_noloop_table[] = {
DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
},
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ByteSpeed LLC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ByteSpeed Laptop C15B"),
+ },
},
{ }
};
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Po-Hsu Lin (cypressyew)
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1906128
Title:
Touchpad not deteced on Bytespeed C15B laptop
Status in linux package in Ubuntu:
Incomplete
Bug description:
Touchpad hardware is OK and works for Win10. Not working for live
disc, not for 18.04 and not for 20.04 after upgrading. I've attached
a Logitech wireless mouse with its USB adapter and that works.
Bluetooth is also missing, but I have not started trying to skull that
out. I'm happy to help try debugging things, and to help resolve the
issue.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-54-generic 5.4.0-54.60
ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65
Uname: Linux 5.4.0-54-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: tom 1395 F.... pulseaudio
/dev/snd/controlC0: tom 1395 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Nov 28 19:09:05 2020
InstallationDate: Installed on 2020-01-26 (307 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64
(20190805)
MachineType: ByteSpeed LLC ByteSpeed Laptop C15B
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-54-generic
root=UUID=07b919ee-c6ad-41a5-9c64-df3c8e477b6f ro quiet splash i8042.reset
i8042.nomux i8042.nopnp i8042noloop noapic vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-54-generic N/A
linux-backports-modules-5.4.0-54-generic N/A
linux-firmware 1.187.4
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2020-11-25 (3 days ago)
dmi.bios.date: 03/18/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: C15B.616
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: C15B
dmi.board.vendor: PEGATRON CORPORATION
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: ByteSpeed LLC
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrC15B.616:bd03/18/2014:svnByteSpeedLLC:pnByteSpeedLaptopC15B:pvr1.0:rvnPEGATRONCORPORATION:rnC15B:rvr1.0:cvnByteSpeedLLC:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: PEGA Family
dmi.product.name: ByteSpeed Laptop C15B
dmi.product.sku: 0
dmi.product.version: 1.0
dmi.sys.vendor: ByteSpeed LLC
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