On 08/15/2011 02:20 AM, Chris Rankin wrote: > I've been experimenting with my new PCTV 290e DVB-T2 device this weekend, and have a couple of observations. For example, the device sometimes has trouble initialising itself: > INFO: task khubd:1100 blocked for more than 120 seconds. > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > khubd D 0000000000000000 0 1100 2 0x00000000 > ffff8801a694e930 0000000000000046 ffff8801a691ffd8 ffffffff8162b020 > 0000000000010280 ffff8801a691ffd8 0000000000004000 0000000000010280 > ffff8801a691ffd8 ffff8801a694e930 0000000000010280 ffff8801a691e000 > Call Trace: > [<ffffffff8128580e>] ? apic_timer_interrupt+0xe/0x20 > [<ffffffff8113ffff>] ? memscan+0x3/0x18 > [<ffffffff8128354e>] ? __mutex_lock_slowpath+0x15c/0x295 > [<ffffffff81283690>] ? mutex_lock+0x9/0x18 > [<ffffffffa06af671>] ? dvb_init+0x99/0xcc8 [em28xx_dvb] > [<ffffffffa067d459>] ? em28xx_init_extension+0x35/0x53 [em28xx] > [<ffffffffa067b938>] ? em28xx_usb_probe+0x827/0x8df [em28xx] I think it crashes before it even goes to PCTV 290e specific part. I suspect it is bug somewhere in em28xx driver. I am not much familiar with em28xx driver. Does someone else see where it crashes? > Tuning the adapter into the HD MUX is also proving to be more difficult that I anticipated. Successful attempts are so rare that I am now forced to assume that I was merely lucky. > > The following parameters *should* be enough, but clearly aren't in practice: > > T 554000000 8MHz 2/3 AUTO QAM256 AUTO AUTO AUTO That is DVB-T2 since QAM256 I suspect. Actually everything else but frequency and bandwidth are needed, all others are detected automatically. T 554000000 8MHz + auto auto auto etc. is enough. I have 570 MHz DVB-T2 live here working fine. It is only 2 UHF channels (16MHz) more. Have you tried it on Windows? regards Antti -- http://palosaari.fi/ -- 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
