"mmc0: Unknown controller version (3)" comes from the kernel source code
at:
linux/drivers/mmc/host/sdhci.c
It says mmc0 controller version is 3, which is greater than the version
prescribed in the reported kernel.
In the latest mainline kernel, I can see:
#define SDHCI_SPEC_4205
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Viraj Shah (v-shah)
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Title:
Lenovo Y700-17ISK: mmc0: Unknown controller version (3)
** Tags added: cscc
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Title:
Lenovo Y700-17ISK: mmc0: Unknown controller version (3)
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Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.2-rc6/
Particularly,
commit 0086fc217d5d7ac2939c500733d1d046b9ac5012
Author: ernest.zhang
Date: Mon Jul 16 14:26:54 2018 +0800
mmc: sdhci: Add support for O2 hardware tuning
Add hardware tuning
Still present in bionic with HWE 18.04.2 (kernel 4.18.0-22).
Card reader fails with high-speed SDXC.
Confirmed upstream: https://bugzilla.kernel.org/show_bug.cgi?id=109231
lspci --nnk
01:00.0 SD Host controller [0805]: O2 Micro, Inc. SD/MMC Card Reader Controller
[1217:8520] (rev 01)
http://www.0xf8.org/2016/01/workaround-for-broken-o2-micro-sd-card-
reader-support-since-linux-kernel-version-4-1-8/
rmmod sdhci sdhci_pci sdhci_acpi
modprobe sdhci debug_quirks2="0x4"
modprobe sdhci_pci
this helped
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Same problem on lenovo y700-17ISK
dmesg | grep mmc
[1.064994] mmc0: Unknown controller version (3). You may experience
problems.
[1.065010] sdhci-pci :07:00.0: No vmmc regulator found
[1.065011] sdhci-pci :07:00.0: No vqmmc regulator found
[1.068121] mmc0: SDHCI controller
I can confirm on my lenovo y700 (15something) that the SD-cardreader is not
working (it did once)
if SD-card is inserted, dmesg shows:
[11328.070304] mmc0: tuning execution failed
[11328.070315] mmc0: error -5 whilst initialising SD card
I am on kernel: 4.4.0-28-generic
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** Tags removed: latest-bios-cdcn30ww
** Tags added: latest-bios-cdcn35ww
** Changed in: linux (Ubuntu)
Importance: Low => Medium
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Title:
This morning I installed new kernel 4.6-rc7-wily, but unfortunately
nothing changes, all above errors are still here (including boot error:
failure writing sector 0x21c8800 to 'hd0'/ press any key to
continue...). Please find attached also my new dmesg.
** Attachment added:
I've updated my BIOS to the latest version: CDCN35WW
I have now a fresh and totally clean installation of Ubuntu 16.04.
Here's an excerpt from my DMESG which you can find attached to this
post:
[ 0.35] ACPI: Core revision 20150930
[ 0.025040] ACPI Error: [\_SB_.PCI0.XHC_.RHUB.HS11] Namespace
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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I suppose 'mmc' is a 'memory card reader'. As I never use it, I always
turn off 'memory card reader' inside bios settings but unfortunatelly
there is no such an option in my new Lenovo notebook.
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aljosa, to clarify, do you actually have an issue with mmc
functionality?
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Title:
Lenovo Y700-17ISK: mmc0: Unknown controller version (3)
To
This is a freshly purchased notebook, I think not compatible with
previous Ubuntu versions because of lack of support for skylake
processors.
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aljosa, to clarify, did this issue not occur in a release prior to
Xenial?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-4.5-rc7
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Description changed:
- Lenovo Y700-17ISK (Intel Core i7-6700HQ/RAM 16GB/SSD 512GB/Nvidia GTX960M 4GB)
- Operating system: Ubuntu 16.04 (xenial-desktop-amd64.iso 04-Mar-2016, kernel
4.4.0-10-generic, nvidia 361.28)
-
- After installing Xenial, I installed all available updates too, and then
-
aljosa, in order to allow additional upstream developers to examine the issue,
at your earliest convenience, could you please test the latest upstream kernel
available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please
keep in mind the following:
1) The one to test is at the
** Description changed:
Lenovo Y700-17ISK (Intel Core i7-6700HQ/RAM 16GB/SSD 512GB/Nvidia GTX960M 4GB)
Operating system: Ubuntu 16.04 (xenial-desktop-amd64.iso 04-Mar-2016, kernel
4.4.0-10-generic, nvidia 361.28)
- Dmesg output:
+ After installing Xenial, I installed all available updates
Please:
1. Edit the report description, so it explains which steps you followed to
recreate the bug and which are the consequences of it.
2. Set this report status back to "confirmed".
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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