usb3 + 2 x pctv290e issues

usb3 + 2 x pctv290e issues

[Robin Becker]

Has anyone else her had the problem described in

https://bugzilla.kernel.org/show_bug.cgi?id=65021

ie complete xhci freeze when a second pctv290e is accessed with vlc.
I'm wondering if this is a problem specific to em28xx or the pctv290e
or to this kind of device (ie dvb usb).
-- 
Robin Becker

Re: usb3 + 2 x pctv290e issues

[Antti Palosaari]

Moikka!

On 01/25/2015 11:33 AM, Robin Becker wrote:
> Has anyone else her had the problem described in
>
> https://bugzilla.kernel.org/show_bug.cgi?id=65021
>
> ie complete xhci freeze when a second pctv290e is accessed with vlc.
> I'm wondering if this is a problem specific to em28xx or the pctv290e
> or to this kind of device (ie dvb usb).

I have seen multiple times USB3 issues and reboot is needed in order to 
solve those. USB3 is simply not enough robust yet. Due to that, I will 
never use USB3 ports when developing the drivers - I only test it very 
quickly when driver is about ready.

regards
Antti

-- 
http://palosaari.fi/

Re: usb3 + 2 x pctv290e issues

[Robin Becker]

Thanks to all, I applied the patch suggested by Olli Salonen and I can
now run multiple vlc's on my NUC.

On 25 January 2015 at 11:23, Antti Palosaari <crope@iki.fi> wrote:
> Moikka!
>
>
> On 01/25/2015 11:33 AM, Robin Becker wrote:
>>
>> Has anyone else her had the problem described in
>>
>> https://bugzilla.kernel.org/show_bug.cgi?id=65021
>>
>> ie complete xhci freeze when a second pctv290e is accessed with vlc.
>> I'm wondering if this is a problem specific to em28xx or the pctv290e
>> or to this kind of device (ie dvb usb).
>
>
> I have seen multiple times USB3 issues and reboot is needed in order to
> solve those. USB3 is simply not enough robust yet. Due to that, I will never
> use USB3 ports when developing the drivers - I only test it very quickly
> when driver is about ready.
>
> regards
> Antti
>
> --
> http://palosaari.fi/



-- 
Robin Becker

Re: usb3 + 2 x pctv290e issues

[Olli Salonen]

It seems I managed to miss the reply-all button, so I thought that in
case someone else is looking at this I'll post it here on the mailing
list as well. This is what I wrote:

"I saw this quite a while ago on my Intel NUC (that only has USB 3
ports, so I've got no choice).

The same issue is reported here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1313279

In OpenELEC we got rid of the issue by reverting one patch, look here:
https://github.com/OpenELEC/OpenELEC.tv/commit/b636927dec20652ff020e54ed7838a2e9be51e03
"

Cheers,
-olli

On 25 January 2015 at 18:08, Robin Becker <robin@reportlab.com> wrote:
> Thanks to all, I applied the patch suggested by Olli Salonen and I can
> now run multiple vlc's on my NUC.
>
> On 25 January 2015 at 11:23, Antti Palosaari <crope@iki.fi> wrote:
>> Moikka!
>>
>>
>> On 01/25/2015 11:33 AM, Robin Becker wrote:
>>>
>>> Has anyone else her had the problem described in
>>>
>>> https://bugzilla.kernel.org/show_bug.cgi?id=65021
>>>
>>> ie complete xhci freeze when a second pctv290e is accessed with vlc.
>>> I'm wondering if this is a problem specific to em28xx or the pctv290e
>>> or to this kind of device (ie dvb usb).
>>
>>
>> I have seen multiple times USB3 issues and reboot is needed in order to
>> solve those. USB3 is simply not enough robust yet. Due to that, I will never
>> use USB3 ports when developing the drivers - I only test it very quickly
>> when driver is about ready.
>>
>> regards
>> Antti
>>
>> --
>> http://palosaari.fi/
>
>
>
> --
> Robin Becker
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html