I have the same issue as here, lspci doesn't show it. dmidecode says the PCIE x1 slot (the only PCIE x1 slot on my mother board) is available (i.e. doesn't say its in use). The card is uPD720201/uPD720202 based and works fine on a windows system (different PC). The firmware was updated to version 2024. It is powered with molex connector. I can't see what I am doing wrong.
No where in the syslog or dmesg or kern.log there is any xhci seen with grep. Even NEC/Renesas nothing shows in these logs. Its as if my card was silently missing.
Bit more information:
$uname -a Linux ******* 3.13.0-48-generic #80-Ubuntu SMP Thu Mar 12 11:16:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux $cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.04 DISTRIB_CODENAME=trusty DISTRIB_DESCRIPTION="Ubuntu 14.04.2 LTS"
# dmidecode 2.12
SMBIOS 2.4 present.
Handle 0x0002, DMI type 2, 8 bytes
Base Board Information
Manufacturer: Packard Bell BV
Product Name: Cuba MS-7301
Version: 1.0
Serial Number:
Handle 0x0025, DMI type 9, 13 bytes System Slot Information Designation: PCIEX16 Type: x16 PCI Express Current Usage: In Use Length: Long ID: 4 Characteristics: 5.0 V is provided PME signal is supported Handle 0x0026, DMI type 9, 13 bytes System Slot Information Designation: PCIEX1_1 Type: x1 PCI Express Current Usage: Available Length: Long ID: 5 Characteristics: 5.0 V is provided PME signal is supported
Even lspci -nn
also doesn't show the card as opposed to what was stated here
I noticed that when I connect the same card to my other desktop (running windows and dual-booting to ubuntu 14.04.1 LTS) the dmi decode shows that my card is powered 3.3V. This is weird, I thought PCIEX_x16 & PCIEX_x1 are all common standard and common voltage. Any idea why the voltage is different, anyone please?
# dmidecode 2.12 SMBIOS 2.5 present. Handle 0x0002, DMI type 2, 15 bytes Base Board Information Manufacturer: ASUSTeK Computer INC. Product Name: M4A79XTD EVO Version: Rev X.0X Serial Number: MT709CK11102337 Asset Tag: To Be Filled By O.E.M. Features: Board is a hosting board Board is replaceable Location In Chassis: To Be Filled By O.E.M. Chassis Handle: 0x0003 Type: Motherboard Contained Object Handles: 0 # dmidecode 2.12 SMBIOS 2.5 present. Handle 0x002C, DMI type 9, 13 bytes System Slot Information Designation: PCIEX16_1 Type: x16 PCI Express Current Usage: In Use Length: Short ID: 2 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x002D, DMI type 9, 13 bytes System Slot Information Designation: PCIEX16_2 Type: x16 PCI Express Current Usage: In Use Length: Short ID: 2 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x002E, DMI type 9, 13 bytes System Slot Information Designation: PCIEX1_1 Type: x1 PCI Express Current Usage: In Use Length: Short ID: 4 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x002F, DMI type 9, 13 bytes System Slot Information Designation: PCIEX1_2 Type: x1 PCI Express Current Usage: Available Length: Short ID: 5 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x0030, DMI type 9, 13 bytes System Slot Information Designation: PCI1 Type: 32-bit PCI Current Usage: Available Length: Short ID: 13 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x0031, DMI type 9, 13 bytes System Slot Information Designation: PCI2 Type: 32-bit PCI Current Usage: In Use Length: Short ID: 14 Characteristics: 3.3 V is provided Opening is shared PME signal is supported
In this case lspci -nn does show the card and the card works.
02:00.0 USB controller [0c03]: Renesas Technology Corp. uPD720202 USB 3.0 Host Controller [1912:0015] (rev 02)
Best Answer
Looks like this answer provides the essential: https://askubuntu.com/a/794911/68124