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| "cannot open /dev/video0 to probe" any ideas? http://forum.linhes.org/viewtopic.php?f=2&t=9608 |
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| Author: | nodrownboy [ Thu Apr 13, 2006 7:12 pm ] |
| Post subject: | "cannot open /dev/video0 to probe" any ideas? |
Anyone know what would be causing this? I'm using a pvr-150, and MythTV will not recognize the cards. |
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| Author: | EvilTwin [ Thu Apr 13, 2006 8:10 pm ] |
| Post subject: | |
Some searching (try "PVR150" for example) should reveal how to diagnose these cards and how to upgrade the driver if the card is being misidentified. For example: http://mysettopbox.tv/phpBB2/viewtopic. ... ght=pvr150 http://www.knoppmythwiki.org/index.php? ... ngLogFiles http://www.knoppmythwiki.org/index.php?page=CompileIvtv Please search before asking! |
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| Author: | nodrownboy [ Thu Apr 13, 2006 9:01 pm ] |
| Post subject: | |
I had searched through those before and tried updating the drivers. Those solutions seem to all be for people who had 150's get misidentified as 250's, where my problem is that my card isn't getting recognized at all. |
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| Author: | tjc [ Thu Apr 13, 2006 9:49 pm ] |
| Post subject: | |
Well, we can't very well help you unless you provide better diagnostic information, and the 2nd item in that list is all about how to collect that information from your log files. Given that you provided almost none with you original post, and that the misidentified PVR-150s are the most common recent problem, I'd also say it was a reasonable first guess based on sparse information and the links were both relevant and helpful. |
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| Author: | rusty- [ Sun Apr 16, 2006 1:40 am ] |
| Post subject: | |
When trying to configure my PVR-150 MCE (type 1042) in “mythtv-setpup” I too get the error “Could not open /dev/video0 to probe its inputs.” I tried the “power off” approach, figured I’d start with an easy option, but it didn’t work. These are the other posts that I have reviewed: http://mysettopbox.tv/phpBB2/viewtopic.php?t=9101 http://mysettopbox.tv/phpBB2/viewtopic.php?t=9065 http://mysettopbox.tv/phpBB2/viewtopic.php?t=9068 I followed these instructions to compile ivtv 0.4.4 http://www.knoppmythwiki.org/index.php?page=CompileIvtv I pretty sure that I updated the ivtv drivers correctly, the md5 signatures are good. Code: root@mythtv:/# md5sum /usr/lib/hotplug/firmware/v4l* 305dba74bbe5905447add8883f3ecb68 /usr/lib/hotplug/firmware/v4l-cx2341x-dec.fw 5f5fa240ada73c3565f5f7de4c7b5138 /usr/lib/hotplug/firmware/v4l-cx2341x-enc.fw 0661f8b2693fe3123e6234557353eacc /usr/lib/hotplug/firmware/v4l-cx2341x-init.mpg 3a4803384f749d644ee1f1ca9dcb12fa /usr/lib/hotplug/firmware/v4l-cx25840.fw This is what I get for the card when I lspci -v Code: 0000:02:01.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01) Subsystem: Hauppauge computer works Inc.: Unknown device 8801 Flags: bus master, medium devsel, latency 64, IRQ 21 Memory at cc000000 (32-bit, prefetchable) [size=64M] Capabilities: [44] Power Management version 2 I think that the root of my problem is related to this error message that is displayed during start up, before the ###ivtv### section. Code: “FATAL: Error inserting cx25840 (/lib/modules/2.6.15-chw-2/kernel/drivers/media/video/cx25840/cx25840.ko): Unknown symbol in module, or unknown parameter (see dmesg)” I get that exact same error when I try to “modprobe cx25840 i2c_enable=1” as suggested in the sample script on this page: http://www.knoppmythwiki.org/index.php?page=HauppaugeOneFiftyInstallation My /var/log/dmseg has this reference to cx25840 in it (above of the ivtv section) Code: cx25840: Unknown parameter `i2c_enable' Here is the ivtv section from my /var/log/kern.log Code: ivtv: ==================== START INIT IVTV ====================
ivtv: version 0.4.4 (tagged release) loading ivtv: Linux version: 2.6.15-chw-2 SMP preempt 586 gcc-3.3 ivtv: In case of problems please include the debug info between ivtv: the START INIT IVTV and END INIT IVTV lines, along with ivtv: any module options, when mailing the ivtv-users mailinglist. ivtv0: Autodetected WinTV PVR 150 card (cx23416 based) ACPI: PCI Interrupt 0000:02:01.0[A] -> GSI 17 (level, low) -> IRQ 21 ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50] tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0) ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61] wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #0) ivtv0: i2c attach to card #0 ok [client=wm8775, addr=1b] tda9887 1-0043: chip found @ 0x86 (ivtv i2c driver #0) ivtv0: i2c attach to card #0 ok [client=tda9887, addr=43] tveeprom 1-0050: Hauppauge model 26552, rev F0A3, serial# 8966275 tveeprom 1-0050: tuner model is TCL MFNM05-4 (idx 103, type 43) tveeprom 1-0050: TV standards NTSC(M) (eeprom 0x08) tveeprom 1-0050: audio processor is CX25843 (idx 37) tveeprom 1-0050: decoder processor is CX25843 (idx 30) tveeprom 1-0050: has radio, has no IR remote cx25840: Unknown parameter `i2c_enable' ivtv0: Failed to load module cx25840 ivtv0 warning: i2c client addr: 0x44 not found for command 0xc008561c! ivtv0: unable to open firmware v4l-cx2341x-enc.fw ivtv0: did you put the firmware in the hotplug firmware directory? ivtv0 warning: failed loading encoder firmware ivtv0 warning: Error loading firmware -3! ivtv0: Error -3 initializing firmware. ivtv0: Error -12 on initialization ivtv: probe of 0000:02:01.0 failed with error -12 ivtv: ==================== END INIT IVTV ==================== cx2388x v4l2 driver version 0.0.5 loaded I am new to linux, but have been able to follow lots of awesome posts on this site to get all the other parts of my system working. Hopefully someone can help me clear this last hurdle. aloha, rusty ________________________ KnoppMyth R5B7 MSI Motherboard - 915GVM3-V Intel Celeron D 335 2.80 GHz 533FSB eVGA Geforce 6500 PCI Express w/ TV-Out 250GB 7200 HDD 2x256 MB DDR Ram Hauppauge PVR 150 (1042) Pioneer DVD burner - DVR-111D LINKSYS WMP54G - PCI Wireless-G |
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