I have two USB 3.0 ports in my dell inspiron 5421 laptop . The ports marked as SS meaning super speed. But when I run the command lspci -t this is the output  /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M     |__ Port 3: Dev 3, If 0, Class=Vendor Specific Class, Driver=rtsx_usb, 480M     |__ Port 4: Dev 4, If 0, Class=Wireless, Driver=btusb, 12M     |__ Port 4: Dev 4, If 1, Class=Wireless, Driver=btusb, 12M     |__ Port 6: Dev 5, If 0, Class=Video, Driver=uvcvideo, 480M     |__ Port 6: Dev 5, If 1, Class=Video, Driver=uvcvideo, 480M   and the output of lsusb is below  Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 005: ID 0c45:649a Microdia  Bus 001 Device 004: ID 8087:07da Intel Corp.  Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub   As is shown, none of the command shows the presence of a Super Speed USB port. I never actually checked it before but currently I am thinking to buy a portable 256Gb SSD, that's why I am checking if the port would be a bottleneck for the Drive.  Here is the output of lsmod | grep hcd; lspci -nnk | grep "USB controller" -A2   00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04) Subsystem: Dell Device [1028:0591] Kernel driver in use: ehci-pci   00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04) Subsystem: Dell Device [1028:0591] Kernel driver in use: ehci-pci
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# lsmod |grep xhc   nothing here but in dmesg:  # dmesg |grep xhc [    0.650446] xhci_hcd 0000:00:14.0: xHCI Host Controller [    0.650450] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1 [    0.651518] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x00109810 [    0.651523] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported [    0.651580] usb usb1: Manufacturer: Linux 4.2.0-25-generic xhci-hcd [    0.659081] xhci_hcd 0000:00:14.0: xHCI Host Controller [    0.659083] xhci_hcd 0000:00:14.0: new USB bus registered, assigned  bus number 2 [    0.659105] usb usb2: Manufacturer: Linux 4.2.0-25-generic xhci-hcd [    0.969678] usb 1-5: new full-speed USB device number 2 using xhci_hcd [    1.269906] usb 1-6: new low-speed USB device number 3 using xhci_hcd [    1.722308] usb 1-11: new high-speed USB device number 4 using xhci_hcd [ 3487.664191] usb 1-1: new high-speed USB device number 5 using xhci_hcd [ 3555.543441] usb 1-1: reset high-speed USB device number 5 using xhci_hcd   is it already working but built-in in the kernel?  #locate xhci /lib/modules/4.2.0-16-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko /lib/modules/4.2.0-22-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko /lib/modules/4.2.0-23-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko /lib/modules/4.2.0-25-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko /usr/src/linux-headers-4.2.0-16/... ...
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I am using a laptop and ubuntu 11.04. I would like the easiest way possible because I am new to linux.  here is my display information:  *-display              description: VGA compatible controller              product: Core Processor Integrated Graphics Controller              vendor: Intel Corporation              physical id: 2              bus info: pci@0000:00:02.0              version: 18              width: 64 bits              clock: 33MHz              capabilities: msi pm vga_controller bus_master cap_list rom              configuration: driver=i915 latency=0              resources: irq:41 memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:e080(size=8)         *-communication UNCLAIMED              description: Communication controller
122422
My motherboard is Asus P8B75-M. It doesn't have Intel Smart Response. But recently I bought a SSD. Since I mostly use linux I have Linux installed in it. But can I use it to speed up Windows also? How? I don't have Smart Response... (I run Windows 8.1). The SSD is only 64GB.
5105
This is in continuation of my previous problem.   Here i have 2 usbserial hardware modules and it is provisionised that only one can be used at a time.   1. 0403:6014 2. 0403:6001   I also wanted to make sure device is R/W accesble to "plugdev" group  For device 0403:6014, I do not want to use inbuilt usbserial(ftdi_sio) driver. I want to access this device using FTD2XXX library. and for device  0403:6001, I want to use inbulit  usbserial(ftdi_sio) driver. I am trying to find a common way to acheive this.  Trails which I attempted so far. Since,  0403:6001 device uses inbuilt linux driver, I am trying to remove / blacklist ( 0403:6014 ) driver while loading    TRIAL 1  ACTION=="add", SUBSYSTEMS=="usb",  KERNEL=="ttyUSB*", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6014",  RUN+="/usr/local/bin/rmmod.sh 4", GROUP="plugdev"  This removes the loaded FTDI driver, but it does not change the device group from ROOT to PLUGDEV   So address that issue added one more rule line   TRIAL 2  SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0664", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6014", GROUP="plugdev" ACTION=="add", SUBSYSTEMS=="usb",  KERNEL=="ttyUSB*", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6014", RUN+="/usr/local/bin/rmmod.sh 4"  This trial sets my device GROUP as expected to "plugdev", but this does not remove the kernel usbserial module. TRIAL 3  SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0664", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6014", GROUP="plugdev"  Added ftdi_sio to  /etc/modprobe.d/blacklist.conf , but this blacklists my  0403:6001 completely.   This approach works well for 0403:6014 but this completely obseltes my 0403:6001 device   Request some guidance to fix this issue
77679
So from what I've read online, if AHCI is enabled in the BIOS, I should be able to hot-swap a SATA drive and it will supposedly "just work".  However, that has not been my experience.  When I hot-swap a SATA drive on my system, it is never detected. It doesn't show up in lsblk, it doesn't show up in Gparted, nothing even shows in dmesg.  So, I am wondering what the issue is?  I am using 16.04 on an Asus M5A97 R2.0    Edit to address Takkat's suggestion:  I have no such option:
103093
As the photo shows, the pins are wired "straight across", rather than diagonally. This means that it does not work as an Ethernet/8P8C coupler because the transmit pins are  (for 10/100 Mbit/s at least). Likewise, it doesn't act as a crossover either.  Is it wired wrong? Or is it a special form of a 1000Base-T crossover? Or is it perhaps used to correct the pins from another reversed device...?
48444
i'm about to get a new SSD for my PC, and before spending the money i have some doubts about my decision i would like to clarify First, my mobo is a B450 Aorus Pro Wifi, it has 2 M.2 slots, one of them full length (22110) compatible with PCIe 3.0 x4 and the other one standard length (2280) and support only for PCIe 3.0 x2 About the drive, i'm aiming for a 1tb XPG SX8200 Pro , which is a PCIe 3.0x4 SSD My first M.2 slot is already taken by the main SSD, which i use for the OS and other stuff, i can't really use it. Will a PCIe x4 SSD work on a PCIe x2 slot? How much performance will be lost if it does? Will it be worth it?
14272
I have a Dell notebook with i7 processor and Ubuntu 14.10. When i disable SpeedStep in my BIOS my computer is very fast but the fan runs very often and the battery gets empty fast.  When I activate SpeedStep, then Ubuntu gets very slow. I have tried switching the governor to performance with no effect.  This is what cpufreq-info shows for all 7 CPUs:  analyzing CPU 7: driver: intel_pstate CPUs which run at the same hardware frequency: 7 CPUs which need to have their frequency coordinated by software: 7 maximum transition latency: 0.97 ms. hardware limits: 800 MHz - 3.70 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 3.70 GHz and 3.70 GHz.               The governor "performance" may decide which speed to use               within this range. current CPU frequency is 1.17 GHz.   Strange thing is the frequenccy never goes above 1.2 GHz. I have tried starting firefox or compiling a big project.  This is the CPU related output of lshw:   *-cpu       description: CPU       product: Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz       vendor: Intel Corp.       physical id: 43       bus info: cpu@0       version: Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz       slot: SOCKET 0       size: 3581MHz       capacity: 3581MHz       width: 64 bits       clock: 100MHz       capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm cpufreq       configuration: cores=4 enabledcores=4 threads=8   I got this issue after upgrading from Ubuntu 14.04 to 14.10.  So how to get Ubuntu 14.10 to use my CPU on full speed when needed?  Update: After disabling intel_pstate all CPUs run at 800 MHz no matter what I do. Switching governor by applet or command line has no effect.  Update: After installing cpufreqd, /var/log/syslog gets these messages in a loop:  Mar  3 13:00:03 scala cpufreqd: cpufreqd_set_profile     : Couldn't set profile "Performance High" set for cpu0 (2700000-2700000-performance) Mar  3 13:00:03 scala cpufreqd: cpufreqd_loop            : Cannot set policy, Rule unchanged ("none").   Update: cat /sys/devices/system/cpu/cpu*/cpufreq/bios_limit prints 800000 (800 MHz) for all CPUs. Where does this limit come from? How to increase it?
52842
I have 4 HDDs here with me, from 3 different manufacturers, and all of them have the following 4-pin extra interface beside the SATA connector:    Looking on internet, I can see that it exists on all HDD devices, but not on SSDs:    On old IDE devices there was a similar interface used to select operational mode(master/slave), but on SATA it doesn't makes sense any more.... So, could someone tell me what this interface is intented to do and why it doesn't exists on SSDs? It is used on any practical situation?
62487
I upgraded my old computer with a Samsung EVO 850. I did a clean Windows 10 installation.  Installed Samsung Magic and fixed all the AHCI settings. Now I have full 6Gb/s transfer speed.  However, my problem is Windows "Optimize Drives" tool wants to defrag my SSD like a hard drive. As far as I know, this is bad.  The rest of the OS works fine, and my 3rd party programs see that it's a SSD.  CPU: Intel Core i7 (4th gen) Mobo: Asus P7P55DE_PRO RAM: 8GB
75190
I have a server with a LSI MegaRAID 9261-8i controller. Recently I started getting alerts like this one:  Controller ID: 1  Consistency Check inconsistency logging disabled, too many     inconsistencies on VD: 0 Generated on:Sat May 12 04:06:40 2012   SYSTEM DETAILS--- IP Address: 192.168.1.29 OS Name: Windows 7 x64 OS Version: 6.01 Driver Name: megasas.sys Driver Version: 4.5.1.64  IMAGE DETAILS--- BIOS Version: 2.120.33-1197 Firmware Package Version: 12.12.0-0045 Firmware Version: 3.21.00_4.11.05.00_0x05000000   VD 0 is a RAID mirror containing the system disk.  I have searched and read, but cannot find any trace of how to actually do anything about this. I tried running a scandisk but that did not find anything (as I expected, since scandisk reads the disks as exposed by the controller, right?). The MegaRAID Storage Manager does not as far as I can see have any options for checking or fixing physical disks. The program claims the VD is "healty", and both disks have Error count 0.  Also a bit strange is the System details in the message... The IP address is associated with the RAS (dial in) interface, and the OS should be Windows Server 2011 SBS.  Has anyone else experienced this before? What can be done?
38269
Is it possible to on/off a specific USB port using the terminal in Ubuntu?  lsusb displays the following result:  Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 2232:1020 Bus 002 Device 009: ID 0bc2:a013 Seagate RSS LLC Bus 002 Device 003: ID 0a5c:219c Broadcom Corp.    is my external hard disk drive. Can I power it off in the terminal?  I tried . But I am confused about what should be replaced in place of usbX.
99194
I got this SSD out of an Apple laptop that's broken from liquid damage.  What is this connection called and how do I mount this storage device to retrieve data from it? It looks like PCIe. Does Apple sell a part to mount this via USB adapter or something?
100238
Fitted an  today which depends on Linux drivers from files in /drivers/linux/AWP1200E_linux.zip/RTL8812AE_Linux_v4.3.2_12208.20140904/ extracted from  .  On my 74mb connection I only get about 37 mb/sec; hardwired I get about 67 mb/sec and on my Windows PC I used to get over 70mb/sec with WiFi.  Why is it slower on Ubuntu? How can I get this card to deliver the speed I got with Windows? Here's what lspci -knn | grep Net -A3 &amp;&amp; rfkill list shows:  05:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter [10ec:8812] (rev 01)     Subsystem: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter [10ec:8812]     Kernel driver in use: rtl8821ae     Kernel modules: rtl8821ae 06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c) 0: phy0: Wireless LAN     Soft blocked: yes     Hard blocked: no
41393
I've have this socket on my laptop (Lenovo Z570).  What is this port and what is it used for? And what does that symbol mean (I expected a LOCK symbol)?
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My motherboard currently supports both SATA II and III (3 Gb/s and 6Gb/s respectively), but after reading some online, it seems as though connecting a HDD to the 6 Gb/s is pretty much pointless. If this is the case I'm going to leave my two SATA III ports open for something that can actually use it (which at this point I'm not really sure what can).  This is part of an article I read:     In terms of everything else, we saw basically no difference from the same single drive being plugged into a SATA 6Gb/s or SATA 3Gb/s port. All of this is obviously due to the hard drive not being able to actually take advantage of the 6Gb/s bus.   from .
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I have a Transcend Storejet external USB hard disk. This is not an SSD, but a mechanical disk with rotating plates. I have formatted the whole disk, without partitioning, as NTFS. I have used mkntfs tool under Linux.  When plugged into a Linux machine, the system sees a drive with two partitions (/dev/sdc /dev/sdc1 /dev/sdc2). However, as I know it is a partitionless disk, I can mount the whole device (mount -t ntfs /dev/sdc /mnt) and it works without any problems.  When plugged into a MS Windows XP machine, the systems sees a disk with two unformatted partitions, and it does not assign a drive letter to either the whole disk, nor to any of the partitions.  Would anyone know how to get MS Windows to mount my disk as a NTFS superfloppy?  I have already tried removing old USB mounting points and residual devices using 'DriveCleanup'. It did not help.  By the way, I also have an external Kingston USB SSD, also formatted as NTFS superfloppy, without partitioning. However, this one is recognized and mounted normally by MS Windows.