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My wacom-stylus stops working after a few seconds of usage on kernel 5.15.6; removing and reloading the wacom module fixes the problem for a short period. After downgrading to Kernel 5.15.4, this bug is gone, thus it seems that it appeared in kernel 5.15.5 or 5.15.6. Dmesg shows no events when the stylus stops working, finger touch works all the time.
My device: Lenovo L13 yoga, the stylus:
lsusb
Bus 001 Device 005: ID 056a:51f6 Wacom Co., Ltd Pen and multitouch sensor
Last edited by MasterMax (2022-01-31 13:39:48)
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I checked the kernel diff, in version 5.15.6 something changed in the wacom module, a confidence flag was introduced:
https://git.kernel.org/pub/scm/linux/ke … .15.5&dt=2
https://git.kernel.org/pub/scm/linux/ke … d2=v5.15.5
https://git.kernel.org/pub/scm/linux/ke … d2=v5.15.5
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Hi,
same problem, same solution with downgrading the kernel.
My device: Lenovo Yoga 380, the stylus:
Bus 001 Device 005: ID 056a:5155 Wacom Co., Ltd Pen and multitouch sensor
Last edited by sosyco (2021-12-18 16:11:37)
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I stumbled upon https://github.com/linuxwacom/input-wacom/issues/288 and reported the bug also there. I tested downgrading only the wacom module in the current kernel (as requested on github), which does not fix the problem. Thus I think something else in the kernel broke it. This is obviously not a arch specific problem. Can anyone help me report this to the right person?
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Hi,
i generated a bug-report under: https://bugs.archlinux.org/task/73080.
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Have you tried linux 5.15.5 from the ALA to see if the issue was introduced in 5.15.5 or 5.15.6.
Then can you bisect between those two kernels? That should identify the causal commit which will identify who to contact upstream.
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Ok,
i checked after
sudo pacman -U /var/cache/pacman/pkg/linux-5.15.5.arch1-1-x86_64.pkg.tar.zst
and reboot
seems to work.
@MasterMax: Can you also check?
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Please try the kernel below
https://drive.google.com/file/d/1Xe7Ewd … sp=sharing linux-5.15.10.arch1-1.1-x86_64.pkg.tar.zst
https://drive.google.com/file/d/188jMIl … sp=sharing linux-headers-5.15.10.arch1-1.1-x86_64.pkg.tar.zst
It uses a different method than https://github.com/linuxwacom/input-wac … -993115786
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hi,
installed your packages on one of my devices...
first view looks good...no loosing of the stylus
how get we this in the regular kernel?
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Please check 5.15.10.arch1-1 from the repos if you have not already tested that release to confirm it still has the issue.
If so the change I made was to revert d048d3eb3ca7e2f847b78125b12bdb9d86681495 using
git revert -n d048d3eb3ca7e2f847b78125b12bdb9d86681495
Please report those findings to https://github.com/linuxwacom/input-wacom/issues/288
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Please try the kernel below
https://drive.google.com/file/d/1Xe7Ewd … sp=sharing linux-5.15.10.arch1-1.1-x86_64.pkg.tar.zst
https://drive.google.com/file/d/188jMIl … sp=sharing linux-headers-5.15.10.arch1-1.1-x86_64.pkg.tar.zst
It uses a different method than https://github.com/linuxwacom/input-wac … -993115786
I testet this kernel and the stylus works perfectly. Thanks for your effort. How do we proceed?
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I testet this kernel and the stylus works perfectly. Thanks for your effort. How do we proceed?
Wait for a fix from upstream. jigpu authored the commit causing the issue and is aware of the issue on the upstream bug report.
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A fix has been proposed:
https://github.com/linuxwacom/input-wac … 1011465509
I've tried this module on linux-5.16.0-zen1-1 , and it works fine so far.
Last edited by tattsan (2022-01-13 05:26:51)
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Patched in Kernel 5.16.4
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