On Wed, Aug 19, 2009 at 10:08 AM, Helmut Ungar<h.ungar@xxxxxxxxxxxxxx> wrote: > > Hi, > > we are experiencing a problem with the V4L-DVB drivers. > It seems that when the system has over 4Gb the drivers > do no longer work properly. Either nothing or rubbish comes out of them, > although tuning using szap seems to > work. If we force the system to use only 4Gb by appending > mem=4GB as a kernel parameter things are working like a > charm. > > Our setup: > Dell 2850 server with a Magma PCI extender. There are 6 DVB boards in the > machine: 5 KNC TV STAR DVB-S and 1 Hauppauge Nova-S-Plus DVB-S. > The system has 8GB of RAM and runs an up-to-date Centos5.3, kernel > 2.6.18-128.4.1.el5 x86_64. The V4L-DVB driver we are using is > v4l-dvb-2009.08.18.tar.bz2 > On this setup some of the KNC boards are working, the Hauppauge > does not. In a similar setup where we have only KNCs none > of them is working unless you force the system to use 4Gb of the available > memory. > > I would like to know if this is a known issue and if so > what can be done to fix/work around the problem. > > Any help/suggestion/hint is highly welcome. > Thanks in advance! > Kind regards, > Helmut I have a server with three cx23885-based PCI-E boards, one of them single tuner, the other two with dual tuners. This server has 8G RAM. The single tuner is a Hauppauge board and the dual tuners are DViCO boards. (I chose this setup for maximum tuner capacity and brand diversity for the sake of testing -- I plan to replace the DViCO boards with two HVR2250's) So, in summary, my 8G system has five digital tuners and I am not experiencing the problems that you report. I doubt the issue is within the v4l-dvb subsystem. Good luck, Mike Krufky -- 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
