AnsweredAssumed Answered

PCIe speed problem

Question asked by dns.on.gpu on Oct 6, 2015
Latest reply on Oct 7, 2015 by dns.on.gpu

Hello.

 

This is probably an AMD question.

 

I have a X79 mobo with a R9 280X card on the first slot (pcie 2/3 possible),

and two disks.

 

One disk (hdd) has opensuse 13.1 and the default opensuse driver.

When checking with lspci -vvv I get

 

LnkCap: Port #0, Speed 8GT/s, Width x16

LnkSta: Speed 8GT/s, Width x16

 

which is great.

 

On the second disk (ssd) I have ubuntu 14.04 and fglrx 15.10.1013 and

lspci gives

 

LnkCap: Port #0, Speed 8GT/s, Width x16

LnkSta: Speed 2.5GT/s, Width x16

 

This is pcie-1 speed. This speed remains unaffected if I switch off

the pci-3 option in the bios.

 

Is there a fix for the ubuntu problem?

 

Thanks.

--

Outcomes