[Nix-dev] PCI Expresscard not working under NixOS

[David Izquierdo]

And while you're at it, you should probably check `lspci -k` on the 
working system to see what kernel module it uses, in case it's missing 
from NixOS.


On 07/02/17 12:26, Tomasz Czyż wrote:
> What about doing quick check and running ubuntu from livecd/usb to 
> confirm if card still is alive?
>
> 2017-02-07 2:23 GMT+00:00 Roger Qiu <roger.qiu at matrix.ai 
> <mailto:roger.qiu at matrix.ai>>:
>
>     It might be a missing driver. Ultimately is the kernel, its
>     drivers and modules that deal with hardware and IO. You might need
>     to google around and ask specifically for the given pci expess
>     hardware serial code and model.
>
>     On 07/02/2017 9:39 AM, "Christoph-Simon Senjak"
>     <christoph.senjak at googlemail.com
>     <mailto:christoph.senjak at googlemail.com>> wrote:
>
>         Hello.
>
>         On 06.02.2017 06:36, Roger Qiu wrote:
>
>             When you plug something in, the kernel log should show
>             something. If it
>             doesn't then the kernel doesn't know about it, nothing in
>             the userspace
>             can help.
>
>
>         How can that be?
>
>             Make sure you're running those commands before you plug
>             the usb in.
>
>         >
>
>             Also I used to have faulty usb cables, but even then the
>             kernel showed
>             something. Usually repeating messages because the usb
>             cable kept
>             dropping out and coming back in.
>
>             What happens if you plug those devices directly?
>
>
>         The kernel does not notice the expresscard itself when I plug
>         it in. My usb hard disk works perfectly under the other ports.
>
>         Ah, and fun fact: When plugging in the expresscard, I can
>         reproducibly scramble my sound output for a second (the music
>         repeats for a second after I plug it in). Still, the kernel
>         says nothing. And no device nodes appear.
>
>
>             On 06/02/2017 2:55 PM, "Christoph-Simon Senjak"
>             <christoph.senjak at googlemail.com
>             <mailto:christoph.senjak at googlemail.com>
>             <mailto:christoph.senjak at googlemail.com
>             <mailto:christoph.senjak at googlemail.com>>> wrote:
>
>                 Hi.
>
>                 On 06.02.2017 04:46, Peter Hoeg wrote:
>
>                     Hi,
>
>                         My USB 3.0 Expresscard does not work under
>             NixOS, it used to
>                         work
>                         under other distros. I already tried to add
>
>
>                     Can you be a little more specific about "does not
>             work"?
>
>
>                 Nothing happens. Like, really nothing. No new hub is
>             shown in lsusb
>                 (as it was under Ubuntu). Devices I plug in are not
>             shown. Nothing.
>
>                     When you plug it in, what messages are you seeing
>             while running
>                     these 2
>                     commands in separate terminals:
>
>                     journalctl -k -f
>
>                     and
>
>                     udevadm monitor
>
>
>                 Nothing. No output.
>
>                 Regards, CSS
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>
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>
>
> -- 
> Tomasz Czyż
>
>
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