Package: src:linux Version: 4.19.118-2+deb10u1 Severity: normal I recently installed Debian on this tablet and I noticed it doesn't provide any battery information although the matching modules (axp*) are loaded.
The directory /sys/class/power_supply is empty, but the device is accessible via /sys/bus/i2c/. I also tried a recent kernel 5.4 with same results. Could you please help me to fix this? -- Package-specific info: ** Version: Linux version 4.19.0-9-amd64 (debian-ker...@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.118-2+deb10u1 (2020-06-07) ** Command line: BOOT_IMAGE=/vmlinuz-4.19.0-9-amd64 root=UUID=34c49bcb-67d9-4e53-8a49-724075c882f0 ro fbcon=rotate:2 quiet ** Tainted: C (1024) * Module from drivers/staging has been loaded. ** Kernel log: Unable to read kernel log; any relevant messages should be attached ** Model information sys_vendor: TrekStor product_name: SurfTab twin 11.6 product_version: To be filled by O.E.M. chassis_vendor: To Be Filled By O.E.M. chassis_version: To Be Filled By O.E.M. bios_vendor: American Megatrends Inc. bios_version: TP15-VT5.2.1.3 board_vendor: Hampoo board_name: CherryTrail CR board_version: V100 ** Loaded modules: fuse bnep nls_ascii nls_cp437 vfat fat snd_soc_sst_bytcr_rt5651 ext4 mbcache jbd2 fscrypto ecb intel_rapl gpio_keys intel_powerclamp coretemp kvm_intel kvm irqbypass intel_cstate efi_pstore wdat_wdt efivars r8723bs(C) pcspkr hci_uart joydev btqca btrtl btbcm hid_multitouch axp288_fuel_gauge btintel snd_intel_sst_acpi bluetooth snd_intel_sst_core axp20x_pek cfg80211 snd_soc_sst_atom_hifi2_platform snd_soc_acpi_intel_match snd_soc_rt5651 processor_thermal_device snd_hdmi_lpe_audio intel_soc_dts_iosf intel_atomisp2_pm snd_soc_acpi snd_soc_rl6231 drbg snd_soc_core ansi_cprng snd_compress snd_pcm tpm_crb evdev snd_timer bmc150_accel_i2c bmc150_accel_core tpm_tis industrialio_triggered_buffer dw_dmac snd ecdh_generic kfifo_buf dw_dmac_core tpm_tis_core tpm intel_cht_int33fe rfkill industrialio pcc_cpufreq crc16 soundcore pwm_lpss_platform pwm_lpss rng_core intel_int0002_vgpio int3400_thermal int3403_thermal int3406_thermal acpi_pad soc_button_array acpi_thermal_rel int340x_thermal_zone efivarfs ip_tables x_tables autofs4 btrfs xor zstd_decompress zstd_compress xxhash raid6_pq libcrc32c crc32c_generic algif_skcipher af_alg dm_crypt dm_mod usbhid hid_generic crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel pcbc i915 mmc_block aesni_intel aes_x86_64 crypto_simd cryptd glue_helper i2c_hid hid axp20x_i2c axp20x i2c_algo_bit drm_kms_helper xhci_pci xhci_hcd drm usbcore lpc_ich mfd_core usb_common thermal button video sdhci_acpi sdhci mmc_core i2c_designware_platform spi_pxa2xx_platform i2c_designware_core ** PCI devices: 00:00.0 Host bridge [0600]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register [8086:2280] (rev 22) Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register [8086:7270] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Kernel driver in use: iosf_mbi_pci 00:02.0 VGA compatible controller [0300]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Configuration Registers [8086:22b0] (rev 22) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Configuration Registers [8086:7270] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 80 Region 0: Memory at 90000000 (64-bit, non-prefetchable) [size=16M] Region 2: Memory at 80000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at f000 [size=64] [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: i915 Kernel modules: i915 00:03.0 Multimedia controller [0480]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Imaging Unit [8086:22b8] (rev 22) Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Imaging Unit [8086:7270] Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 255 Region 0: [virtual] Memory at 91000000 (32-bit, non-prefetchable) [size=4M] Capabilities: <access denied> Kernel driver in use: intel_atomisp2_pm Kernel modules: intel_atomisp2_pm 00:0b.0 Signal processing controller [1180]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller [8086:22dc] (rev 22) Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller [8086:7270] Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 84 Region 0: Memory at 9183b000 (64-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: proc_thermal Kernel modules: processor_thermal_device 00:14.0 USB controller [0c03]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller [8086:22b5] (rev 22) (prog-if 30 [XHCI]) Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller [8086:7270] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 34 Region 0: Memory at 91800000 (64-bit, non-prefetchable) [size=64K] Capabilities: <access denied> Kernel driver in use: xhci_hcd Kernel modules: xhci_pci 00:1a.0 Encryption controller [1080]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine [8086:2298] (rev 22) Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine [8086:7270] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 255 Region 0: Memory at 91700000 (32-bit, non-prefetchable) [size=1M] Region 1: Memory at 91600000 (32-bit, non-prefetchable) [size=1M] Capabilities: <access denied> 00:1f.0 ISA bridge [0601]: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU [8086:229c] (rev 22) Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU [8086:7270] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> Kernel driver in use: lpc_ich Kernel modules: lpc_ich ** USB devices: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 007: ID 1c4f:0063 SiGma Micro Bus 001 Device 006: ID 05e3:0608 Genesys Logic, Inc. Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub -- System Information: Debian Release: 10.4 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-9-amd64 (SMP w/4 CPU cores) Kernel taint flags: TAINT_CRAP Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages linux-image-4.19.0-9-amd64 depends on: ii initramfs-tools [linux-initramfs-tool] 0.133+deb10u1 ii kmod 26-1 ii linux-base 4.6 Versions of packages linux-image-4.19.0-9-amd64 recommends: ii apparmor 2.13.2-10 ii firmware-linux-free 3.4 Versions of packages linux-image-4.19.0-9-amd64 suggests: pn debian-kernel-handbook <none> pn grub-pc | grub-efi-amd64 | extlinux <none> pn linux-doc-4.19 <none> Versions of packages linux-image-4.19.0-9-amd64 is related to: pn firmware-amd-graphics <none> pn firmware-atheros <none> pn firmware-bnx2 <none> pn firmware-bnx2x <none> pn firmware-brcm80211 <none> pn firmware-cavium <none> ii firmware-intel-sound 20190114-2 pn firmware-intelwimax <none> pn firmware-ipw2x00 <none> pn firmware-ivtv <none> pn firmware-iwlwifi <none> pn firmware-libertas <none> pn firmware-linux-nonfree <none> pn firmware-misc-nonfree <none> pn firmware-myricom <none> pn firmware-netxen <none> pn firmware-qlogic <none> ii firmware-realtek 20190114-2 pn firmware-samsung <none> pn firmware-siano <none> pn firmware-ti-connectivity <none> pn xen-hypervisor <none> -- no debconf information