Hello,
My external SSD Crucial X9 gets very slow and shows random speeds
Here is a benchmark that I ran for about 15min, with nothing else running on the computer.
Setup is :
Framework 13 intel 11th
Ubuntu 22 LTS
external SSD Crucial X9
Power supply Anker 65w
I have tried different ports and different disks but the problem persists
What could cause this behaviour ?
Thanks
Well those speeds scream usb2, have you tried a different cable for the ssd?
Can you post the output of “lsusb -t” on linux and check if dmesg is complaining about something when the slowdowns happen?
Thanks for your answer I was losing hope.
I’ve tried with a different cable: same result
Here is the output of lsusb -t
~ » lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 10000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
|__ Port 9: Dev 2, If 0, Class=Vendor Specific Class, Driver=, 12M
|__ Port 10: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
|__ Port 10: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 10000M
|__ Port 2: Dev 3, If 0, Class=Mass Storage, Driver=uas, 10000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M
The disk is on port Port 2
The output of dmesg while running a test, nothing happened when the speed dropped
~ » sudo dmesg -wH
[ +7,964088] usb 2-2: new SuperSpeed Plus Gen 2x1 USB device number 5 using xhci_hcd
[ +0,022203] usb 2-2: New USB device found, idVendor=0634, idProduct=5605, bcdDevice= 1.10
[ +0,000003] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0,000001] usb 2-2: Product: CT1000X9SSD9
[ +0,000001] usb 2-2: Manufacturer: Micron
[ +0,000001] usb 2-2: SerialNumber: 2419E8D18A8F
[ +0,002058] scsi host0: uas
[ +3,855731] scsi 0:0:0:0: Direct-Access Micron CT1000X9SSD9 PMAP PQ: 0 ANSI: 6
[ +0,007112] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ +0,004984] sd 0:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
[ +0,000072] sd 0:0:0:0: [sda] Write Protect is off
[ +0,000002] sd 0:0:0:0: [sda] Mode Sense: 57 00 00 00
[ +0,000156] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ +0,078505] sd 0:0:0:0: [sda] Optimal transfer size 33553920 bytes
[ +0,017181] sda: sda1 sda2
[ +0,001248] sd 0:0:0:0: [sda] Attached SCSI disk
[ +0,156038] exFAT-fs (sda2): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ +17,491059] usb 3-9: reset full-speed USB device number 2 using xhci_hcd
[janv.15 10:11] kauditd_printk_skb: 22 callbacks suppressed
[ +0,000002] audit: type=1107 audit(1736932276.949:281): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" mask="send" name="org.freedesktop.DBus" pid=4401 label="snap.fwupd.fwupd" peer_pid=5364 peer_label="snap.snap-store.ubuntu-software"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ +0,000003] audit: type=1107 audit(1736932276.949:282): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" name=":1.88" mask="receive" pid=5364 label="snap.snap-store.ubuntu-software" peer_pid=4401 peer_label="snap.fwupd.fwupd"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ +0,000002] audit: type=1107 audit(1736932276.949:283): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" mask="send" name="org.freedesktop.DBus" pid=4401 label="snap.fwupd.fwupd" peer_pid=5364 peer_label="snap.snap-store.ubuntu-software"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ +0,000002] audit: type=1107 audit(1736932276.949:284): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" name=":1.88" mask="receive" pid=5364 label="snap.snap-store.ubuntu-software" peer_pid=4401 peer_label="snap.fwupd.fwupd"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ +0,000021] audit: type=1107 audit(1736932276.949:285): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" mask="send" name="org.freedesktop.DBus" pid=4401 label="snap.fwupd.fwupd" peer_pid=5364 peer_label="snap.snap-store.ubuntu-software"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ +0,000004] audit: type=1107 audit(1736932276.949:286): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" name=":1.88" mask="receive" pid=5364 label="snap.snap-store.ubuntu-software" peer_pid=4401 peer_label="snap.fwupd.fwupd"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ +0,000037] audit: type=1107 audit(1736932276.949:287): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" mask="send" name="org.freedesktop.DBus" pid=4401 label="snap.fwupd.fwupd" peer_pid=5364 peer_label="snap.snap-store.ubuntu-software"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ +0,000004] audit: type=1107 audit(1736932276.949:288): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" name=":1.88" mask="receive" pid=5364 label="snap.snap-store.ubuntu-software" peer_pid=4401 peer_label="snap.fwupd.fwupd"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ +0,000060] audit: type=1107 audit(1736932276.949:289): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" mask="send" name="org.freedesktop.DBus" pid=4401 label="snap.fwupd.fwupd" peer_pid=5364 peer_label="snap.snap-store.ubuntu-software"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ +0,000005] audit: type=1107 audit(1736932276.949:290): pid=1663 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/" interface="org.freedesktop.fwupd" member="DeviceChanged" name=":1.88" mask="receive" pid=5364 label="snap.snap-store.ubuntu-software" peer_pid=4401 peer_label="snap.fwupd.fwupd"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
By scrolling the dmseg output i’ve found these messages :
[ 794.675043] usb usb2-port3: Cannot enable. Maybe the USB cable is bad?
[ 798.971081] usb usb2-port3: Cannot enable. Maybe the USB cable is bad?
[ 803.263007] usb usb2-port3: Cannot enable. Maybe the USB cable is bad?
[ 807.563177] usb usb2-port3: Cannot enable. Maybe the USB cable is bad?
[ 811.879148] usb usb2-port3: Cannot enable. Maybe the USB cable is bad?
[ 816.187211] usb usb2-port3: Cannot enable. Maybe the USB cable is bad?
[ 820.495249] usb usb2-port3: Cannot enable. Maybe the USB cable is bad?
[ 829.267095] usb usb2-port3: Cannot enable. Maybe the USB cable is bad?
[ 838.091311] usb usb2-port3: config error
[ 842.343298] usb usb2-port3: Cannot enable. Maybe the USB cable is bad?
The cable is not bad (tested with a different one, and both are working well on mac), the error happens on other ports, for example port4 too.
Thank you for your help, I hope we’ll find a solution 
Yeah so the cable is at least kinda ok if it connects at 10G
Maybe try if it does the same running windows 2 go or something
I tried again in windows and got trouble having my disk detected, then it was detected for a few minutes before being automatically disconnected…
I have this error in the device manager, even with the latest drivers installed.
translation : " Unknown USB Device (Device Descriptor Request Failed)
"
When I finally got it to stay connected long enough I got this speed measurement…
Hello, Any idea ? @Matt_Hartley @nrp
Thanks :3
