I have a DELL E7250 Latitude and after the upgrade from 15.04 my SD
cardreader cannot read the Kingston 64GB SDXC anymore. Same error
messages in dmesg:
[ 1.886833] sdhci: Timeout waiting for Buffer Read Ready interrupt during
tuning procedure, falling back to fixed sampling clock
[ 1.888611] mmc0: tuning execution failed
[ 1.888616] mmc0: error -5 whilst initialising SD card
lspci output fom kernel 4.2.0-18
01:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev
01) (prog-if 01)
Subsystem: Dell Device 062d
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at f7101000 (32-bit, non-prefetchable) [size=4K]
Memory at f7100000 (32-bit, non-prefetchable) [size=2K]
Capabilities: [6c] Power Management version 3
Capabilities: [48] MSI: Enable- Count=1/1 Maskable+ 64bit+
Capabilities: [80] Express Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [230] Latency Tolerance Reporting
Capabilities: [240] L1 PM Substates
Kernel driver in use: sdhci-pci
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https://bugs.launchpad.net/bugs/1509119
Title:
Dell Venue pro 11 7140 card reader not working.
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