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PRO 4: missing touch support with 5.5.8 #40
Description
Device: Surface Pro 4
Kernel: 5.5.8-1.surface.fc30.x86_64 build 6.3. 14:38
(which is actually newer than the Fedora one with 5.5.7 )
Description:
Firsttime installation of a surface kernel of your repo, so no refereces, if older kernels of this series are working. JakeDays kernelpatches did work and produced a working 5.1er kernel.
Any ideas?
Working:
wifi
typcover
Mysterious:
it looks like it consumes less power ( none at all 100% battery for 5+ minutes ) .. or the battery check does not work at all. power-top says 4.7 W drain, which is a medium consumption. After a reboot it showed 95% dropping... so sort of works.
Missing Features:
Touchscreensupport
Camera
Installed:
kernel-surface-5.5.8-1.fc30.x86_64
surface-firmware-20191004-1.fc30.noarch
surface-secureboot-20200202-1.fc30.noarch
libwacom-surface-1.2-3.fc30.x86_64
Modules:
ipts 0x
mei 5x mei_hdcp,mei_me,ipts
i915 12x
i2c_algo_bit 1x i915
drm_kms_helper 1x i915
drm 6x drm_kms_helper, i915
video 1x i915
Activity
Cyborgscode commentedon Mar 10, 2020
Workaround:
[root@surface]# rmmod ipts
[root@surface]# insmod /lib/modules/5.5.8-1.surface.fc30.x86_64/kernel/drivers/input/touchscreen/ipts/ipts.ko.xz singletouch=y
singletouch seems to help this on SP4.
StollD commentedon Mar 10, 2020
As per the notes for the release: linux-surface/linux-surface#96 (comment)
The 5.5+ based kernels include a new IPTS driver, since we cannot use the old one anymore due to the removal of GuC submission. The new driver currently supports either stylus input or singletouch. Stylus mode is enabled by default, you can enable singletouch by adding
ipts.singletouchto the kernel command line, or setting the appropreate options in/etc/modprobe.d.We still support 4.19 as an LTS release with support for the old IPTS driver, but I haven't gotten around to actually setting up LTS packages for fedora yet.
qzed commentedon Mar 13, 2020
I think the main question has been answered, so I'm going to close this issue. I've opened a tracking issue for Fedora LTS builds: linux-surface/linux-surface#120.
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