Hi, i did some research and find out that the front end register for my device is not a typhoon but a wideview. Here a the kernel logs during pluging device and then starting mplayer: Feb 25 14:04:21 localhost kernel: usb 2-1: new full speed USB device using uhci_hcd and address 6 Feb 25 14:04:21 localhost kernel: dvb-usb: found a 'WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)' in cold state, will try to load a firmware Feb 25 14:04:21 localhost kernel: dvb-usb: downloading firmware from file 'dvb-usb-dtt200u-01.fw' to the 'Cypress FX2' Feb 25 14:04:22 localhost kernel: dvb-usb: WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U) successfully initialized and connected. Feb 25 14:04:23 localhost kernel: usb 2-1: USB disconnect, address 6 Feb 25 14:04:23 localhost kernel: dvb-usb: generic DVB-USB module successfully deinitialized and disconnected. Feb 25 14:04:24 localhost kernel: usb 2-1: new full speed USB device using uhci_hcd and address 7 Feb 25 14:04:24 localhost kernel: dvb-usb: found a 'WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)' in warm state. Feb 25 14:04:24 localhost kernel: dvb-usb: will use the device's hardware PID filter (table count: 15). Feb 25 14:04:24 localhost kernel: DVB: registering new adapter (WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U)). Feb 25 14:04:24 localhost kernel: DVB: registering frontend 0 (WideView USB DVB-T)... Feb 25 14:04:24 localhost kernel: dvb-usb: could not initialize remote control. Feb 25 14:04:24 localhost kernel: dvb-usb: WideView/Yuan/Yakumo/Hama/Typhoon DVB-T USB2.0 (WT-200U) successfully initialized and connected. Feb 25 14:04:27 localhost pam_console.dev[10632]: Restoring console permissions for /dev/dvb/adapter0/demux0 Feb 25 14:04:28 localhost pam_console.dev[10643]: Restoring console permissions for /dev/dvb/adapter0/dvr0 Feb 25 14:04:28 localhost pam_console.dev[10679]: Restoring console permissions for /dev/dvb/adapter0/frontend0 Feb 25 14:04:28 localhost pam_console.dev[10665]: Restoring console permissions for /dev/dvb/adapter0/net0 Feb 25 14:04:39 localhost lircd-0.7.1[8236]: accepted new client on /dev/lircd Feb 25 14:05:00 localhost lircd-0.7.1[8236]: removed client Could the wrong frontend be the source of my problems ? Le Samedi 25 Février 2006 12:34, Bertrand Marquis a écrit : > Hi Patrick > > Sorry for the last two messages, mistake in the address > > Le Samedi 25 Février 2006 12:05, vous avez écrit : > > Hi Bertrand, > > > > On Sat, 25 Feb 2006, Bertrand Marquis wrote: > > > I am trying to make a Typhoon dvb-t usb to work under linux. > > > > > > When i plug the card, the kernel detects it correctly as a typhoon > > > card, load the firmware i downloaded in linuxtv and then the led is on. > > > I am then able to look for channels using scandvb and i can found all > > > channels available in my area. > > > > Very good. > > > > > The problem is that i have a really low signal: > > > > Actually the signal strength should give a value of the Signal power > > before any tuner/LNA/AGC of the board. A lot of boards currently > > supported don't give that value or it cannot be calculation due to the > > lack of floating point operations at kernel level. > > > > Furthermore your board has everyhting "hidden" in a firmware and the > > value you read from it is "pre-calculated". From the information we have > > we just assumed that it is a percent value, but we might be wrong. > > > > However, in DVB the signal strength is not so important. If BER and UNC > > is zero everything is OK and you will not have any bad video or > > something. I would not recommend this device and using its signal > > strength to find a good position for the antenna. > > > > > Under windows the typhoon application says that i have a signal of > > > about 95% and the same for the snr and then i can look television > > > without problems. > > > > > > But under linux i can see practically nothing and kaffeine says that my > > > signal is only 20%. > > > > And there is no TV visible? > > i can see part of the images from time to time but then the player > (mplayer, xine or kaffeine) give an error saying that i have a lack of > resources. > > Here is the output of mplayer: > ************************************************ > **** Your system is too SLOW to play this! **** > ************************************************ > > Possible reasons, problems, workarounds: > - Most common: broken/buggy _audio_ driver > - Try -ao sdl or use the OSS emulation of ALSA. > - Experiment with different values for -autosync, 30 is a good start. > - Slow video output > - Try a different -vo driver (-vo help for a list) or try -framedrop! > - Slow CPU > - Don't try to play a big DVD/DivX on a slow CPU! Try some of the > lavdopts, e.g. -vfm ffmpeg -lavdopts lowres=1:fast:skiploopfilter=all. > - Broken file > - Try various combinations of -nobps -ni -forceidx -mc 0. > - Slow media (NFS/SMB mounts, DVD, VCD etc) > - Try -cache 8192. > - Are you using -cache to play a non-interleaved AVI file? > - Try -nocache. > Read DOCS/HTML/en/video.html for tuning/speedup tips. > If none of this helps you, read DOCS/HTML/en/bugreports.html. > > In fact it seems like i have only part of the image and due to this the > player is not able to decode the video. > > There are only noises from time to time > for the sound and every 10 seconds xine is redoing buffering to end saying > that i have an error messaying that there are too much dropped frame. My > processor is only between 10 and 20% use. > > > > Does anyone has this problem and knows how to solve it ? > > > > What is the problem? > > > > regards, > > Patrick. > > > > -- > > Mail: patrick.boettcher@xxxxxxx > > WWW: http://www.wi-bw.tfh-wildau.de/~pboettch/ > > ___________________________________________________________________________ > Nouveau : tlphonez moins cher avec Yahoo! Messenger ! Dcouvez les tarifs > exceptionnels pour appeler la France et l'international. Tlchargez sur > http://fr.messenger.yahoo.com > > > _______________________________________________ > > linux-dvb@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ___________________________________________________________________________ Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les tarifs exceptionnels pour appeler la France et l'international. 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