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* resume bug
@ 2015-04-01 15:40 W.Pelser
  2015-04-01 17:38 ` Alan Stern
  0 siblings, 1 reply; 2+ messages in thread
From: W.Pelser @ 2015-04-01 15:40 UTC (permalink / raw)
  To: linux-pm

Bug ID: 94861
            Summary: After resume from hibernate/sleep USB-DVBT-adapter
                      does not work

Kernel 3.19.x and 4.0rcx

After boot:
   strace -f -o /tmp/strace.out lsdvb .... :
     .
     .
     2114  open("/dev/dvb/adapter0/frontend0", O_RDWR|O_NONBLOCK) = 6
     .
     .


After resume:
   strace -f -o /tmp/strace.out lsdvb .... :
      .
      .
     3848  open("/dev/dvb/adapter0/frontend0", O_RDWR|O_NONBLOCK) = -1 
ENODEV (No  such device)
      .
      .



^ permalink raw reply	[flat|nested] 2+ messages in thread
* Re: resume bug
  2015-04-01 15:40 resume bug W.Pelser
@ 2015-04-01 17:38 ` Alan Stern
  0 siblings, 0 replies; 2+ messages in thread
From: Alan Stern @ 2015-04-01 17:38 UTC (permalink / raw)
  To: W.Pelser; +Cc: linux-pm

On Wed, 1 Apr 2015, W.Pelser wrote:

> Bug ID: 94861
>             Summary: After resume from hibernate/sleep USB-DVBT-adapter
>                       does not work
> 
> Kernel 3.19.x and 4.0rcx
> 
> After boot:
>    strace -f -o /tmp/strace.out lsdvb .... :
>      .
>      .
>      2114  open("/dev/dvb/adapter0/frontend0", O_RDWR|O_NONBLOCK) = 6
>      .
>      .
> 
> 
> After resume:
>    strace -f -o /tmp/strace.out lsdvb .... :
>       .
>       .
>      3848  open("/dev/dvb/adapter0/frontend0", O_RDWR|O_NONBLOCK) = -1 
> ENODEV (No  such device)
>       .
>       .

If you are able to build and test your own kernels, you can try using 
git bisect to find out which change between the 3.18 and 3.19 kernels 
caused this problem.

This really ought to be discussed on the linux-media mailing list, 
because it is a regression in the dvb-usb driver.

Alan Stern


^ permalink raw reply	[flat|nested] 2+ messages in thread
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2015-04-01 15:40 resume bug W.Pelser
2015-04-01 17:38 ` Alan Stern

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