On 04.12.2009 09:22, mike n wrote: > Hello, > > I have been testing the latest VDR 1.7.10 and 1.7.5 versions and both > have following problem I haven't seen on VDR 1.6.x version. > > The problem is that after starting VDR (with or without OSD GUI > frontend), it looses a lock on channel after 60 seconds or so. > > If I have local or remote xinelibout GUI watching the live-tv then at > first picture goes to garbage (lots of blocky artifacts) and after few > seconds it freezes completely. OSD and VDR itself is still functional, > but livetv picture is static picture. Or sometimes VDR all in a sudden > shows a picture from another channel even when I didn't change channel > (static picture with lots of blocky artifacts). To me it looks like VDR > changed tuner to another MUX (I have 4 DVBT muxes here or whatever the > proper term is for those "channel groups") when static picture changes. > > This happens every time when I start VDR. Restart of VDR fixes the > problem immediatly, but after 60 seconds booom again. When this happens, > Xineliboutput console shows following text: > "no data in 8 seconds. queing no signal image" > > > If I use ZAP dvb-apps tool to save a channel output to a tempfile.ts > file output, it works beatifully all day long. It doesn't loose lock on > a channel and picture quality is perfect (no artifacts). > > I have tried two different computers and two USB DVBT tuners and the > problem is the same in all of these, so I assume it is not hardware > related. It shouldn't be signal related either because ZAP saves perfect > TS stream output all night long. > > Is there some worker process which kicks in VDR every 60 seconds? Maybe > EPG related process? For some reason I suspect that VDR starts to scan > through EPG data even when I'm watching live-tv. This would explain why > it seems that sometimes it tuned to another mux. When I start VDR, there > is no cached EPG data file because it goes to TMP folder and tmp is > cleared everytime machine boots up. > > Environment is as follows > - Linux kernel 2.6.31.1 > - DVBT Reddo usb stick and Twinhan DVBT stick tested > - VDR 1.7.10 and 1.7.5 versions tested > - Xineliboutput latest CVS version as frontend (doesnt matter even when > I start VDR in background without GUI frontend. Problem is the same) > > I'm able to code/debug/read source code quite fluently, so I'm happy to > help debug this if someone could point me to right direction where to > look for this "60 secs timeout/worker process" issue in VDR. VDR does start scanning for EPG data after a while if inactivity. To rule out this one, please set "EPG scan timeout" to 0 in the "Setup/EPG" menu. Klaus _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
