On Mon, 2009-04-13 at 17:29 -0600, Ronal B Morse wrote: > Andy Walls wrote: > > On Mon, 2009-04-13 at 08:02 -0600, Ronal B Morse wrote: > > > > > > > > > Booting straight to Linux from a power off state results in a black > > > > > screen and no audio from both players. ivti-tune and v4l2-ctl > > > > > set--frequency both produce normal output and indicate the card has > > > > > been > > > > > set to the proper channel/frequency (3/61.125) > > > > > > > > > > > > > > It seems that Ubuntu isn't initializing something on startup, but > > > > > once > > > > > whatever it is gets set it persists through a warm reboot. > > > > > > > > > > > > > > > > > > As a follow-up I've determined that the sequence of commands: > > > > > > sudo modprobe -r cx18 > > > sudo modprobe cx18 > > > > > > will enable the card, after which it will perform normally until the > > > machine is powered off. Should this be necessary? > > > > > > > In a perfect world no. A very busy PCI bus while the module is setting > > up the chip registers and doing a firmware load can cause PCI bus errors > > though. At boot-up, a high load on PCI bus in more recent kernels is > > not uncommon. > > > > I have some debugging code from 3 weeks ago at this repo: > > > > http://linuxtv.org/hg/~awalls/cx18-init-debug/ > > http://linuxtv.org/hg/~awalls/cx18-init-debug/archive/tip.tar.gz > > > > to get more insight into what may be going wrong and to also verify the > > digitizer firmware load. > > > > If you could use the driver from this repository and, IIRC, add an > > > > options cx18 debug=15 > > > > to /etc/modprobe.conf, that will let me see if PCI MMIO writes are > > failing as the module is being loaded at boot up. It will also tell me > > if the digitizer firmware is getting loaded properly. > > > > > > Regards, > > Andy > > > > > > _______________________________________________ > > ivtv-users mailing list > > [email protected] > > http://ivtvdriver.org/mailman/listinfo/ivtv-users > > > > > Will do. Thanks. > > Quick question: I'm running a 64-bit version of the O/S. Does that > matter?
No. The motherboard PCI chipset probably matters more. -Andy > Ron Morse > > _______________________________________________ > ivtv-users mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-users _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
