linux-kernel - [REOPENED] PROBLEM: Elan touchpad regression on Kernel 5.0.10

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Date:   Wed, 01 May 2019 09:57:16 -0400
From:   "Outvi V" <i@...v.im>
To:     dmitry.torokhov@...il.com
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [REOPENED] PROBLEM: Elan touchpad regression on Kernel 5.0.10

Hello,

  Sorry for disturbing. But later I find it is not actually solved. It seems to be a regression that randomly happens. Sometimes the touchpad works after starting without any bad logs, while somethime the touchpad is completely unusable.

  I have filed a bug on Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=203467

  If any detail is needed, please don't hesitate to contact me.

Regards,

On Tue, Apr 30, 2019, at 14:16, Outvi V wrote:
> Hello,
> 
>   After a cold restart, this problems seem to be solved automatically 
> on kernel 5.0.10.
> 
> Regards,
> 
> On Tue, Apr 30, 2019, at 12:21, Outvi V wrote:
> > Hello,
> > 
> > [1.] One line summary of the problem: Elan touchpad regression on Kernel 5.0.10
> > 
> > [2.] Full description of the problem/report:
> >   Elan touchpad does not work on 5.0.10 while working on 5.0.9
> > 
> > [3.] Keywords: elan_i2c_core elan i2c touchpad 5.0.10
> > 
> > [4.] Kernel information
> > [4.1.] Kernel version:
> >   Linux version 5.0.10-arch1-1-ARCH (builduser@...tig-2592) (gcc 
> > version 8.3.0 (GCC)) #1 SMP PREEMPT Sat Apr 27 20:06:45 UTC 2019
> > [4.2.] Kernel .config file:
> >   I'm not sure, but I think it may be referring to
> >   
> > https://git.archlinux.org/svntogit/packages.git/tree/trunk/config?h=packages/linux
> > [5.] Most recent kernel version which did not have the bug: 5.0.9
> > 
> > [6.] Output of Oops.. message (if applicable) with symbolic information
> >      resolved (Not appliable)
> > [7.] A small shell script or example program which triggers the
> >      problem: (Not appliable)
> > 
> > [8.] Environment
> > [8.1.] Software (add the output of the ver_linux script here)
> >   
> > Linux sheltty 5.0.10-arch1-1-ARCH #1 SMP PREEMPT Sat Apr 27 20:06:45 
> > UTC 2019 x86_64 GNU/Linux
> > 
> > GNU C                   8.3.0
> > GNU Make                4.2.1
> > Binutils                2.32
> > Util-linux              2.33.2
> > Mount                   2.33.2
> > Module-init-tools       26
> > E2fsprogs               1.45.0
> > Jfsutils                1.1.15
> > Reiserfsprogs           3.6.27
> > Xfsprogs                4.20.0
> > PPP                     2.4.7
> > Linux C Library         2.29
> > Dynamic linker (ldd)    2.29
> > Linux C++ Library       6.0.25
> > Procps                  3.3.15
> > Kbd                     2.0.4
> > Console-tools           2.0.4
> > Sh-utils                8.31
> > Udev                    242
> > Modules Loaded          8021q 8250_dw ac ac97_bus acpi_thermal_rel 
> > aesni_intel aes_x86_64 agpgart ahci arc4 atkbd battery bbswitch 
> > bluetooth btbcm btintel btrtl btusb cfg80211 coretemp crc16 
> > crc32c_generic crc32c_intel crc32_pclmul crct10dif_pclmul cryptd 
> > crypto_simd crypto_user drm drm_kms_helper ecdh_generic elan_i2c evdev 
> > ext4 fat fb_sys_fops fscrypto garp ghash_clmulni_intel glue_helper hid 
> > hid_generic i2c_algo_bit i2c_hid i2c_i801 i8042 i915 idma64 input_leds 
> > int3400_thermal int3403_thermal int340x_thermal_zone intel_cstate 
> > intel_gtt intel_lpss intel_lpss_pci intel_pch_thermal intel_powerclamp 
> > intel_rapl intel_rapl_perf intel_soc_dts_iosf intel_uncore 
> > intel_wmi_thunderbolt ip_tables irqbypass iTCO_vendor_support iTCO_wdt 
> > jbd2 joydev kvm kvmgt kvm_intel ledtrig_audio libahci libata libphy 
> > libps2 llc mac80211 mac_hid mbcache mdev media mei mei_me mousedev mrp 
> > nls_cp437 nls_iso8859_1 pcc_cpufreq processor_thermal_device r8169 
> > r8822be realtek rfkill rng_core scsi_mod serio serio_raw snd 
> > snd_compress snd_hda_codec snd_hda_codec_generic snd_hda_codec_hdmi 
> > snd_hda_codec_realtek snd_hda_core snd_hda_ext_core snd_hda_intel 
> > snd_hwdep snd_pcm snd_pcm_dmaengine snd_soc_acpi 
> > snd_soc_acpi_intel_match snd_soc_core snd_soc_hdac_hda snd_soc_skl 
> > snd_soc_skl_ipc snd_soc_sst_dsp snd_soc_sst_ipc snd_timer soundcore stp 
> > syscopyarea sysfillrect sysimgblt tpm tpm_crb tpm_tis tpm_tis_core 
> > typec typec_ucsi ucsi_acpi usbhid uvcvideo vfat vfio vfio_iommu_type1 
> > vfio_mdev videobuf2_common videobuf2_memops videobuf2_v4l2 
> > videobuf2_vmalloc videodev wmi wmi_bmof x86_pkg_temp_thermal xhci_hcd 
> > xhci_pci x_tables
> > 
> > [8.2.] Processor information (from /proc/cpuinfo): (Maybe not appliable)
> > [8.3.] Module information (from /proc/modules): 
> > 
> > (Parts related to i2c and elan:)
> > 
> > i2c_algo_bit 16384 1 i915, Live 0x0000000000000000
> > i2c_hid 32768 0 - Live 0x0000000000000000
> > hid 147456 3 hid_generic,usbhid,i2c_hid, Live 0x0000000000000000
> > elan_i2c 49152 0 - Live 0x0000000000000000
> > i2c_i801 36864 0 - Live 0x0000000000000000
> > 
> > [8.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
> > 
> > /proc/ioports:
> > 0000-0000 : PCI Bus 0000:00
> >   0000-0000 : dma1
> >   0000-0000 : pic1
> >   0000-0000 : iTCO_wdt
> >   0000-0000 : timer0
> >   0000-0000 : timer1
> >   0000-0000 : keyboard
> >   0000-0000 : PNP0C09:00
> >     0000-0000 : EC data
> >   0000-0000 : keyboard
> >   0000-0000 : PNP0C09:00
> >     0000-0000 : EC cmd
> >   0000-0000 : rtc0
> >   0000-0000 : dma page reg
> >   0000-0000 : pic2
> >   0000-0000 : dma2
> >   0000-0000 : fpu
> >     0000-0000 : PNP0C04:00
> >   0000-0000 : iTCO_wdt
> >   0000-0000 : pnp 00:02
> > 0000-0000 : PCI conf1
> > 0000-0000 : PCI Bus 0000:00
> >   0000-0000 : pnp 00:02
> >   0000-0000 : pnp 00:00
> >     0000-0000 : ACPI PM1a_EVT_BLK
> >     0000-0000 : ACPI PM1a_CNT_BLK
> >     0000-0000 : ACPI PM_TMR
> >     0000-0000 : ACPI CPU throttle
> >     0000-0000 : ACPI PM2_CNT_BLK
> >     0000-0000 : pnp 00:04
> >     0000-0000 : ACPI GPE0_BLK
> >   0000-0000 : pnp 00:01
> >   0000-0000 : PCI Bus 0000:08
> >     0000-0000 : 0000:08:00.0
> >   0000-0000 : PCI Bus 0000:07
> >     0000-0000 : 0000:07:00.0
> >       0000-0000 : r8822be
> >   0000-0000 : PCI Bus 0000:01
> >     0000-0000 : 0000:01:00.0
> >   0000-0000 : 0000:00:02.0
> >   0000-0000 : 0000:00:1f.4
> >     0000-0000 : i801_smbus
> >   0000-0000 : 0000:00:17.0
> >     0000-0000 : ahci
> >   0000-0000 : 0000:00:17.0
> >     0000-0000 : ahci
> >   0000-0000 : 0000:00:17.0
> >     0000-0000 : ahci
> > 
> > 
> > [8.5.] PCI information
> >   It seems to be long (over 700 lines) and unrelated to this 
> > regression. Omitted to avoid flooding. I've kept an archive so feel 
> > free to ask me to post it if needed.
> > 
> > [8.6.] SCSI information (from /proc/scsi/scsi): (Empty)
> > [8.7.] Other information that might be relevant to the problem:
> > 
> >   dmesg is constantly showing "elan_i2c i2c-ELAN061B:00: invalid report 
> > id data (d)".
> >   I checked the git log and it is likely to be related to commit 
> > "95df599f95f398b0a34d081dadfdee3126e58163".
> >   I'm using Arch Linux, its kernel repository link: [1]
> >   I checked the related file "elan_i2c_core.c" in Arch Linux's kernel 
> > repository [2], and it is the same as in 5.0.10 on kernel.org.
> >   My laptop is a Lenovo Legion Y7000.
> > 
> > Links:
> > [1]. https://git.archlinux.org/linux.git
> > [2]. 
> > https://git.archlinux.org/linux.git/tree/drivers/input/mouse/elan_i2c_core.c?h=v5.0.10-arch1
> > 
> > Please don't hesitate if more information or operation is needed.