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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https://bugs.launchpad.net/bugs/1906128
Title:
Touchpad not deteced on Bytespeed C15B laptop
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