Hi, I use two Cinergy 1200 DVB-C MK3 for quite a long time and had no problems so far. Now I switched to a new mainboard (Asus m4n78 pro) and after some time, the dvb-c cards aren't usable anymore. This can be triggered by heavy IO. On both mainboards I use Ubuntu 9.04 with the same kernel version (2.6.28-13-generic, also tested with 2.6.28-14-server). While running vdr I see the following in syslog: Jul 11 12:29:52 bowser vdr: [4678] frontend 0 lost lock on channel 6, tp 121 Jul 11 12:29:52 bowser kernel: [ 1235.601266] DVB: TDA10023(0): tda10023_readreg: readreg error (reg == 0x11, ret == -1) Jul 11 12:29:52 bowser vdr: [4682] frontend 1 lost lock on channel 40, tp 730 Jul 11 12:29:52 bowser kernel: [ 1235.631263] DVB: TDA10023(1): tda10023_readreg: readreg error (reg == 0x11, ret == -1) Jul 11 12:29:52 bowser kernel: [ 1235.701265] DVB: TDA10023(0): tda10023_readreg: readreg error (reg == 0x11, ret == -1) Jul 11 12:29:52 bowser kernel: [ 1235.741264] DVB: TDA10023(1): tda10023_readreg: readreg error (reg == 0x11, ret == -1) Jul 11 12:29:52 bowser kernel: [ 1235.801262] tda10023: lock tuner fails Jul 11 12:29:52 bowser kernel: [ 1235.851263] DVB: TDA10023(1): tda10023_readreg: readreg error (reg == 0x11, ret == -1) Jul 11 12:29:52 bowser kernel: [ 1235.951264] DVB: TDA10023(1): tda10023_readreg: readreg error (reg == 0x11, ret == -1) Jul 11 12:29:52 bowser kernel: [ 1236.001263] tda10023: unlock tuner fails Jul 11 12:29:52 bowser kernel: [ 1236.051271] tda10023: lock tuner fails Jul 11 12:29:52 bowser kernel: [ 1236.101271] DVB: TDA10023(0): tda10023_readreg: readreg error (reg == 0x03, ret == -1) Jul 11 12:29:53 bowser kernel: [ 1236.200557] DVB: TDA10023(0): tda10023_writereg, writereg error (reg == 0x03, val == 0x00, ret == -1) Using lspci I see the following: 01:05.0 Multimedia controller: Philips Semiconductors SAA7146 (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: budget_av 01:07.0 Multimedia controller: Philips Semiconductors SAA7146 (rev ff) (prog-if ff) !!! Unknown header type 7f Kernel driver in use: budget_av Before the problem the lspci output looked like this: 01:06.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01) Subsystem: TERRATEC Electronic GmbH Device 1176 Flags: bus master, medium devsel, latency 32, IRQ 16 Memory at faeffc00 (32-bit, non-prefetchable) [size=512] Kernel driver in use: budget_av Kernel modules: budget-av 01:07.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01) Subsystem: TERRATEC Electronic GmbH Device 1176 Flags: bus master, medium devsel, latency 32, IRQ 19 Memory at faeff800 (32-bit, non-prefetchable) [size=512] Kernel driver in use: budget_av Kernel modules: budget-av Searching on google I found something about adjusting pci-latencies to 64, I already tried that, but it didn't help. I updated the BIOS to the latest version, but that didn't help either. Any ideas? Matthias _______________________________________________ linux-dvb users mailing list For V4L/DVB development, please use instead linux-media@xxxxxxxxxxxxxxx linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb