On Thu, Sep 10, 2009 at 11:14 AM, Aleksandr V. Piskunov <aleksandr.v.piskunov@xxxxxxxxx> wrote: > On Wed, Sep 09, 2009 at 05:59:07PM -0400, Devin Heitmueller wrote: >> On Wed, Sep 9, 2009 at 5:43 PM, Clinton Meyer<clintonmeyer22@xxxxxxxxx> wrote: >> > Purchased a Hauppauge WinTV-HVR-950Q USB Hybrid TV stick to capture ATSC OTA TV. >> > >> > Am running MEPIS 8.06 on all three machines, Debian 5 Lenny based, KDE >> > 3.5.10, kernel 2.6.27-1-mepis-smp >> > >> > All three machines now have wireless blocked, either do not connect or >> > all packets dropped/blocked if a connection is made. >> > >> > Used the resources from LinuxTV (dot) org >> > >> > to get it working, they are referenced and posted as follows: >> > linuxtv.org/wiki/index.php/Hauppauge_WinTV-HVR-950Q#Firmware >> > >> > ******** *********** ********** >> > Quote: >> > In order to use the LinuxTV driver, you need to download and install >> > the firmware for the xc5000. >> > >> > Quote: >> > wget ... steventoth (dot) net/linux/xc50...25271_WHQL (dot) zip >> > wget ... steventoth (dot) net/linux/xc5000/extract (dot) sh >> > sh extract (dot) sh >> > cp dvb-fe-xc5000-1.1 (dot) fw /lib/firmware >> > :Unquote >> > >> > Note: Though the usual directory location in which the firmware file >> > is placed is /lib/firmware, this may differ in the case of some >> > distros; consult your distro's documentation for the appropriate >> > location. >> > >> > The firmware will be added lazily (on-demand) when you first use the driver. >> > Drivers >> > >> > The xc5000 driver needed for this WinTV-HVR-950Q is already part of >> > the latest Linux kernel (part of v4l-dvb drivers). >> > >> > Analog support was merged into the mainline v4l-dvb tree on March 18, 2009. >> > :Unquote >> > ******** *********** ********** ******** *********** ********** >> > So on Saturday I got this up and running... and Sunday morning >> > recorded one show successfully that had set up on a timer. >> > >> > Then set up three consecutive shows for the afternoon. >> > They were all part of a series on the same channel. Here are the results: >> > >> > * Show A, 2.5 hours long, 13.2gb file size, appears to be OK. >> > * Show B, 2.0 hours long, 3.7gb file size, appears to be OK. >> > * Show C, supposed to be 2.0 hours long, result was 2.7gb file >> > size, about the first hour is missing. >> > >> > At about this point, I lost wireless internet connectivity on TV >> > recording laptop. Machine sees the access point, but won't connect. >> > >> > Went to my main desktop where i had first worked with this Hauppauge >> > WinTV-HVR-950Q USB Hybrid TV stick and that machine also lost >> > internet, even though it was right next to AP and got a very good >> > signal. >> > >> > Thought it was maybe the AP, so switched it out for a working spare. >> > Same results. >> > Packed up laptop and a spare laptop, along with a MEPIS 8.06 LiveCD >> > and an 8.06 Live USB stick and hit the road to go to a reliable high >> > speed wifi spot. >> > Same results... changins ISPs resulted in the same issues. >> > Also same ting happened with the spare laptop, an IBM T43 Thinkpad I >> > had also done the "wget ... steventoth (dot) >> > net/linux/xc5000/HVR-12x0-14x0-17x0_1_25_25271_WHQL (dot) zip" >> > firmware thing to. >> > >> > Was able to get one machine, while running a LIVE USB session, to >> > connect, but zero packets received.. ALL were blocked. The connection >> > information said ALL packets were dropped. >> > None of the two other machines connected to wireless on a LiveCD or >> > LiveUSB thing too >> > Three machines. All different brands (HP, Dell, and IBM) with >> > different wifi cards. All three see the access point ESSID, but none >> > connect. >> > >> > This does not *feel* good. What got flashed? Can this be resolved? >> > >> > Came home. No difference. Grabbed a laptop that i had NOT done the >> > firmware thing to and that is what I am using to write this. Hooked >> > right up to the AP. >> > >> > Please help... that is too much hardware disabled for me to think calmly. >> > I'd really like to make the USB tv tuner work... what a great way to >> > PVR / DVR, but I need wireless. >> > >> > Can provide any details requested to drive this towards a fix! >> > >> > Thank you, >> > Clinton >> > -- >> > To unsubscribe from this list: send the line "unsubscribe linux-media" in >> > the body of a message to majordomo@xxxxxxxxxxxxxxx >> > More majordomo info at http://vger.kernel.org/majordomo-info.html >> > >> >> Hello Clinton, >> >> That is indeed curious. It's hard to imagine how there could be >> interference between the V4L subsystem and the wireless subsystem, >> short of hitting some sort of timing condition on crappy wireless >> drivers. >> >> Here are a few questions: >> >> 1. You specified you followed the instructions for the firmware, but >> are you running the current v4l-dvb code, or are you just using >> whatever came with your Debian kernel? If you're actually using the >> 1.1 Xceive firmware, I'm assuming you're still using the old code. >> >> 2. How reproducible is this? Does it occur even if the device is >> connected but you do not attempt any capturing with the device? Does >> it always drop out while capturing? >> >> 3. What type of wireless cards are you using? Are they implemented >> over PCI, or USB? If the wireless cards are USB based, perhaps there >> is some sort of USB bandwidth issue. >> >> 4. Are you actively watching the programs you are capturing? Or are >> you just saving the content to disk? What application are you using >> to capture the ATSC video? >> >> Devin >> >> -- >> Devin J. Heitmueller - Kernel Labs >> http://www.kernellabs.com >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-media" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > Not sure if its the same issue, but on some USB chipsets/motherboards there > definitely are problems with two or more bandwidth-demanding cards like > tuners, wireless sticks, etc. Either its a dvb-usb subsystem issue or lower > level usb problem, who knows. > > See this for details, very similar case: usb wifi dongle + usb digital tuner. > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/256492 > > My problem also described in that bug report, got all the hardware and 100% > reproducible situation, would be nice if somebody helps to debug it. can you also test this with Windows on the same board? So far I got one report about the Zotac ION Board having such issues although I'm quite sure to be able to fix up that issue on it. I hope I won't have to deal with further boards... Best Regards, Markus -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
