Very odd problem.. I've read many relevent posts and no combination of noacpi mem=... or other boot flags. work. Some backgorund Boser HS1600 board with BT878 minipci. I have two such systems.. one with a 800mhz curouse the other with a 600mhz (and some other minor differences). with 2.4.22 (and 2.4.20) things are fine on the 800mhz board.. but on the 600mhz only overlay works. (same capture card). There are differences in the IRQ assignments and minor bios variations. (I can post if anyone thinks the actual numbers would be helpful) Digging deeper I have found that on the machine that is not working that the stat returned by stat=btread(BT848_INT_STAT); does not have any bits in the RISC area set (leading nibble). By hacking the driver to that just before the test for /* captured full frame */ I set the bit (2<<28) in stat (only on every other call..) then the capture shows the live data. So the data is there, the fifo are getting i, and the DMA can trasnfer it, but somehow because of the subtle differences between the machines the RISC code is not settig the bits saying that the frame is complete. It also does not seem to set astat&BT848_INT_VSYNC My hack is not an acceptable long run (it thinks every 2 calls to the irq with astat&BT848_INT_RISC is a new frame which is not always the case). Any "insights" or even educated guesses what I should be looking at would be appreciated. Terry Boult Wl Pomar Prof. U. Colorado at Colorado Springs Results of lspci00:00.0 Host bridge: Transmeta Corporation LongRun Northbridge 00:00.1 RAM memory: Transmeta Corporation SDRAM controller 00:00.2 RAM memory: Transmeta Corporation BIOS scratchpad 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22) 00:07.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 10) 00:07.2 USB Controller: VIA Technologies, Inc. UHCI USB (rev 10) 00:07.4 SMBus: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30) 00:08.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 10) 00:09.0 VGA compatible controller: Chips and Technologies F69000 HiQVideo (rev 64) 00:0b.0 Multimedia audio controller: ESS Technology ES1969 Solo-1 Audiodrive (rev 02) 00:0f.0 Multimedia video controller: Brooktree Corporation Bt878 (rev 11) 00:0f.1 Multimedia controller: Brooktree Corporation Bt878 (rev 11) ### video4linux device info [/dev/video0] ### general info VIDIOCGCAP name : "bttv video" type : 0xe9 [CAPTURE,OVERLAY,CLIPPING,FRAMERAM,SCALES] channels : 2 audios : 0 maxwidth : 768 maxheight : 480 minwidth : 48 minheight : 32 channels VIDIOCGCHAN(0) channel : 0 name : "Composite0" tuners : 0 flags : 0x2 [AUDIO] type : CAMERA norm : 1 VIDIOCGCHAN(1) channel : 1 name : "S-Video" tuners : 0 flags : 0x2 [AUDIO] type : CAMERA norm : 1 tuner VIDIOCGTUNER tuner : 0 name : "Television" rangelow : 0 rangehigh : 4294967295 flags : 0x7 [PAL,NTSC,SECAM] mode : NTSC signal : 65535 audio VIDIOCGAUDIO audio : 0 volume : 0 bass : 0 treble : 0 picture VIDIOCGPICT brightness : 32768 hue : 32768 colour : 32512 contrast : 27648 whiteness : 0 depth : 0 palette : RGB24 buffer VIDIOCGFBUF base : (nil) height : 768 width : 1024 depth : 16 bytesperline : 2048 window VIDIOCGWIN x : 0 y : 0 width : 320 height : 240 chromakey : 0 flags : 0 __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com