Yeah it sounds like the XPS 9575 is the main model affected. Also
Precision 5530 (comment #14).
** Summary changed:
- [Dell BIOSes dated 27 Mar 2019] laptop keyboard & touchpad not working at gdm
screen after boot
+ [Dell BIOSes dated 27 Mar 2019, XPS 9575, Precision 5530] laptop keyboard &
XPS 9575 isn't (currently) available for purchase with Ubuntu. So yes,
it's below the radar for something that is typically tested, tracked, or
fixed from a BIOS or validation team perspective.
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I can only imagine that it must be a small proportion of Dell systems
affected. Otherwise we would see more bug reports and interest here...
Mario?
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Is there any hope that this will ever be fixed because as Bryn points
out at #36 the temporary "fix" of downgrading the BIOS is far from
satisfying.
** Description changed:
On a dell XPS 15 2-in-1 with the latest 1.4.0 bios, my touchpad and keyboard
are unresponsive at the gdm login screen.
It's worth mentioning that even with the downgraded bios the mouse
cursor frequently gets stuck requiring a screen flex to fix.
In addition the downgraded bios exposes similar sticking on Windows. So
I can only imagine that resolving this was the purpose of the bios
update in the first place.
#32 is not working for Precision
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Title:
[Dell BIOSes dated 27 Mar 2019] laptop keyboard & touchpad not working
at gdm screen after boot
To
Apologies, comment #32 is incorrect, this worked a couple times but the
problem is still present intermittently. I have since downgraded to BIOS
v1.2.0 to avoid the issue.
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That's interesting to me. Yes the EC will emulate an PS2 mouse until the
OS brings up the I2C controller. I would think you can accomplish a
similar result by blacklisting psmouse potentially.
Is this discussion in IRC or a mailing list?
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I believe I have a workaround provided by a kernel engineer I was
discussing the issue with.
Adding the following to the kernel boot options resulted in the keyboard
and touchpad working without issue:
i8042.nomux=1 i8042.reset
It appears that Dell uses i8042 to emulate a ps/2 interface
I can confirm I have encountered this issue with BIOS v. 1.6.1 from 21
Jul 2019
Device - Dell XPS 15 9575 Intel Core i7-8705G
BIOS - version 1.6.1
OS - Fedora 30
Kernel - kernel-5.1.19-300
Additional info:
- I have an encrypted root partition. During boot, I am able to usethe keyboard
for <1
** Attachment added: "dmesg fedora rescue bios 1.6.1 keyboard usable"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1822394/+attachment/5280156/+files/boot_rescue_keyboard_usable_dmesg.log
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user report:
device - Dell XPS 15 9575 (2018) Intel Core i5-8305G
BIOS - version 1.2.0
OS - Fedora 30 (Gnome Version 3.32.2)
No bugs reported. Everything works fine.
Guess this is no surprise as I am running an older BIOS version.
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This is information from Dell support team about 4.15 working and others
don't
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Title:
[Dell BIOSes dated 27 Mar 2019] laptop keyboard &
Can you confirm linux kernel v4.15 doesn't have this issue?
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Title:
[Dell BIOSes dated 27 Mar 2019] laptop keyboard & touchpad not working
at
Hey everyone,
is there any update on the issue?
Does the bug still occur with BIOS v. 1.6.1 from 21 Jul 2019?
Thanks in advance for your help.
Regards,
Simon
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** Tags added: cscc
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Title:
[Dell BIOSes dated 27 Mar 2019] laptop keyboard & touchpad not working
at gdm screen after boot
To manage
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libinput (Ubuntu)
Status: New => Confirmed
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Title:
There is symptom that if you wait for 30 seconds, input devices will
start to work again, without flipping hinge. Also closing lid to sleep
laptop and wake it again will work also. System engineer from Dell
reported that default kenrel 4.15 will not have this problem, every
other higher version
FWIW a few other messages pop up to me in the above logs as suspicious
to the described symptoms, especially with keyboard working in
cryptsetup.
Mar 31 10:34:45 taplop org.gnome.Shell.desktop[5876]: libinput error: client
bug: timer event25 debounce: offset negative (-111ms)
Mar 31 10:34:45
I have reported already problem to Dell, but apparently they are not
doing anything about this. Only update for WD19. If more people report
it, may be they will start to work. Will try to connect with
notebookcheck to bring some fuss up. I am not using windows at all and
this is big problem for
I have the exact same issue on Fedora 30. Bios 1.5.1 came out today and
has the same exact issue.
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Title:
[Dell BIOSes dated 27 Mar 2019]
^^^
FYI that would be bug 1824216.
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Title:
[Dell BIOSes dated 27 Mar 2019] laptop keyboard & touchpad not working
at gdm screen after boot
To
OK, after compiling 5.0.7 mainline + Ubuntu Patches + this patch from
here (https://patchwork.freedesktop.org/patch/296411/) to fix the link
training issue for my laptop panel, I am able to boot with modesetting.
Now I *am* noticing the problem. As others have suggested, bending back
the laptop
I also run a Dell XPS 9575 2 in 1, with BIOS 1.40 and my system is *not*
exhibiting this particular problem after a fresh 19.04 install.
Keyboard and mouse work fine with GDM, but this is also after booting
with the nomodeset kernel boot parameter.
Note: for other folks reading this thread
** No longer affects: gdm3 (Ubuntu)
** No longer affects: gnome-shell (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => High
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downgrading on precision to 1.0.5 (last available), keyboard will work
again - so BIOS bug
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Title:
[Dell BIOSes dated 27 Mar 2019] laptop
downgrading to the 1.2.0 bios on xps 9575 appears to be working properly
(tested 3 reboots with no issues)
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Title:
[Dell BIOSes dated 27 Mar
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