G4 imac - 720p?

I'd like to get some 720p video currently my G4 imac to show up on my 720p HDTV with the full 1280x720 resolution.
It is uncompressed 720p so my G4, slow as it is, can play it back without the gitters. So using the HDTV as a monitor would work, but I loose the 720p for lack of a good enough port on the iMac.
One way I can think of is through AppleTV, and I think I'll have to H.264 it for that and that conversion takes forever. Something like 1 minute of video takes 20+ minutes of conversion.
Another possibilty is to buy a miniMac and move everything over there I think? It has the DVI port that my iMac lacks I believe?
Any other ideas?
Thanks

Although technically the VGA standard is 640x480 @ 256 colours in fact that 15pin D-Sub connector will support much higher resolutions. 
Wikipedia: VGA... ...It may also refer to the 15-pin D-subminiature VGA connector which is still widely used to carry analog video signals of all resolutions. (My Emphasis.)
On the iMac G4 the graphics card is limited by Apple to output a maximum resolution equal to the native resolution of the LCD display. This means that the VGA port on an iMac G4 will drive the following maximum external resolutions:
15" - 1024x 768 (XGA)
17" - 1440x900 (WXGA+)
20" - 1680x 1050 (WSXGA+)
mrtotes

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    Hi, i'm encountering a problem with my brothers iMac from 2008. We are attempting to add a 2560x1440p external monitor. When I first plugged in the cable, along with the Mini DVI/DVI adapter, the computer reboot, went to the grey screen, and then said "Your computer restarted because of an error, press any key to reboot" type message, then does it again. I tried plugging in just the adapter, and got no kernal panic, so it's only when info/power is transmitted through the cable.
    I googled it extensively but couldn't find any solution nor even a hint of a solutiion. I suspect it might be the graphics card (ATI Radeon HD 2400), but I don't know. A few years ago we connected a 720p TV using a MiniDVi/HDMI adapter, and it worked, but the resolution sucked and it was more of an experiment.
    I should add we installed Mavericks yesterday if it makes any difference. I also asked the seller and and he confirmed the adapter was a DVI-D, which is what the external monitor requires. Here is the Problem Report given after removal of adapter and reboot. Thanks for any help.
    Anonymous UUID:       74A96FB6-C71A-9C42-0657-5F0D4A4891DB
    Fri Oct 25 00:12:32 2013
    panic(cpu 0 caller 0xffffff801a6dc19e): Kernel trap at 0xffffff7f9c499b83, type 14=page fault, registers:
    CR0: 0x0000000080010033, CR2: 0x0000000000000000, CR3: 0x00000000235b3000, CR4: 0x0000000000000660
    RAX: 0x0000000000000000, RBX: 0x0000000000000001, RCX: 0x0000000000000001, RDX: 0xffffff807cd7ba68
    RSP: 0xffffff807cd7ba50, RBP: 0xffffff807cd7ba50, RSI: 0x0000000000000000, RDI: 0xffffff8024fc5280
    R8:  0x00000000000005a0, R9:  0x000000000e64ff60, R10: 0xffffff807cd7b8b0, R11: 0x0000000000000a00
    R12: 0xffffff802464b800, R13: 0xffffff8024e8b500, R14: 0xffffff8024fb6340, R15: 0x0000000000000001
    RFL: 0x0000000000010246, RIP: 0xffffff7f9c499b83, CS:  0x0000000000000008, SS:  0x0000000000000010
    Fault CR2: 0x0000000000000000, Error code: 0x0000000000000000, Fault CPU: 0x0
    Backtrace (CPU 0), Frame : Return Address
    0xffffff807cd7b6e0 : 0xffffff801a622f69
    0xffffff807cd7b760 : 0xffffff801a6dc19e
    0xffffff807cd7b930 : 0xffffff801a6f3606
    0xffffff807cd7b950 : 0xffffff7f9c499b83
    0xffffff807cd7ba50 : 0xffffff7f9c503830
    0xffffff807cd7bb30 : 0xffffff7f9c502133
    0xffffff807cd7bb70 : 0xffffff7f9c501eab
    0xffffff807cd7bba0 : 0xffffff7f9c4fc657
    0xffffff807cd7bbd0 : 0xffffff7f9b4c3550
    0xffffff807cd7bc60 : 0xffffff7f9b4c3d5e
    0xffffff807cd7bcf0 : 0xffffff7f9b4bb855
    0xffffff807cd7bd30 : 0xffffff801aa950e3
    0xffffff807cd7bd90 : 0xffffff801aaca6d5
    0xffffff807cd7be00 : 0xffffff801a6b5b0b
    0xffffff807cd7be50 : 0xffffff801a626bb1
    0xffffff807cd7be80 : 0xffffff801a6139b5
    0xffffff807cd7bef0 : 0xffffff801a61e003
    0xffffff807cd7bf70 : 0xffffff801a6c921d
    0xffffff807cd7bfb0 : 0xffffff801a6f3e26
          Kernel Extensions in backtrace:
             com.apple.iokit.IOGraphicsFamily(2.3.6)[38E388A5-92D6-3388-B799-F2498E582287]@0 xffffff7f9b4b2000->0xffffff7f9b4e9fff
                dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f9acba000
             com.apple.kext.AMDSupport(1.1.4)[F3921412-6801-3683-90E9-F240AB331AEE]@0xffffff 7f9c481000->0xffffff7f9c4edfff
                dependency: com.apple.iokit.IOACPIFamily(1.4)[045D5D6F-AD1E-36DB-A249-A346E2B48E54]@0xfffff f7f9b42a000
                dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f9acba000
                dependency: com.apple.iokit.IOGraphicsFamily(2.3.6)[38E388A5-92D6-3388-B799-F2498E582287]@0 xffffff7f9b4b2000
                dependency: com.apple.AppleGraphicsDeviceControl(3.4.12)[C171C5AF-1BB6-385A-A4DB-3ED5626711 1E]@0xffffff7f9c47b000
             com.apple.kext.AMDFramebuffer(1.1.4)[E33B49BD-7263-36B2-95C8-AC5F87E4F57F]@0xff ffff7f9c4fb000->0xffffff7f9c50efff
                dependency: com.apple.iokit.IOACPIFamily(1.4)[045D5D6F-AD1E-36DB-A249-A346E2B48E54]@0xfffff f7f9b42a000
                dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f9acba000
                dependency: com.apple.kext.AMDSupport(1.1.4)[F3921412-6801-3683-90E9-F240AB331AEE]@0xffffff 7f9c481000
                dependency: com.apple.iokit.IOGraphicsFamily(2.3.6)[38E388A5-92D6-3388-B799-F2498E582287]@0 xffffff7f9b4b2000
    BSD process name corresponding to current thread: WindowServer
    Mac OS version:
    13A603
    Kernel version:
    Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64
    Kernel UUID: 1D9369E3-D0A5-31B6-8D16-BFFBBB390393
    Kernel slide:     0x000000001a400000
    Kernel text base: 0xffffff801a600000
    System model name: iMac8,1 (Mac-F226BEC8)
    System uptime in nanoseconds: 30829424245
    last loaded kext at 29477498069: com.apple.driver.AppleHWSensor          1.9.5d0 (addr 0xffffff7f9c130000, size 36864)
    loaded kexts:
    com.apple.driver.AppleHWSensor          1.9.5d0
    com.apple.iokit.IOUserEthernet          1.0.0d1
    com.apple.iokit.IOBluetoothSerialManager          4.2.0f6
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.driver.AppleTyMCEDriver          1.0.2d2
    com.apple.filesystems.autofs          3.0
    com.apple.driver.AppleHDAHardwareConfigDriver          2.5.2fc2
    com.apple.driver.AppleHDA          2.5.2fc2
    com.apple.driver.AppleSMCPDRC          1.0.0
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.AppleLPC          1.7.0
    com.apple.driver.AppleMuxControl          3.4.12
    com.apple.driver.AppleBacklight          170.3.5
    com.apple.iokit.IOBluetoothUSBDFU          4.2.0f6
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.0f6
    com.apple.driver.AppleHWAccess          1
    com.apple.driver.AppleUpstreamUserClient          3.5.13
    com.apple.driver.AppleMCCSControl          1.1.12
    com.apple.kext.AMDFramebuffer          1.1.4
    com.apple.ATIRadeonX2000          8.1.8
    com.apple.kext.AMD2400Controller          1.1.4
    com.apple.driver.AppleIRController          325.7
    com.apple.iokit.SCSITaskUserClient          3.6.0
    com.apple.driver.AppleFileSystemDriver          3.0.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.BootCache          35
    com.apple.driver.XsanFilter          404
    com.apple.iokit.IOAHCIBlockStorage          2.4.0
    com.apple.driver.AppleUSBHub          650.4.4
    com.apple.iokit.AppleYukon2          3.2.3b1
    com.apple.driver.AppleAHCIPort          2.9.5
    com.apple.driver.AirPortBrcm43224          700.36.24
    com.apple.driver.AppleFWOHCI          4.9.9
    com.apple.driver.AppleIntelPIIXATA          2.5.1
    com.apple.driver.AppleUSBUHCI          650.4.0
    com.apple.driver.AppleUSBEHCI          650.4.1
    com.apple.driver.AppleRTC          2.0
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleACPIButtons          2.0
    com.apple.driver.AppleSMBIOS          2.0
    com.apple.driver.AppleACPIEC          2.0
    com.apple.driver.AppleAPIC          1.7
    com.apple.driver.AppleIntelCPUPowerManagementClient          216.0.0
    com.apple.nke.applicationfirewall          153
    com.apple.security.quarantine          3
    com.apple.driver.AppleIntelCPUPowerManagement          216.0.0
    com.apple.iokit.IOSurface          91
    com.apple.iokit.IOSerialFamily          10.0.7
    com.apple.iokit.IOBluetoothFamily          4.2.0f6
    com.apple.kext.triggers          1.0
    com.apple.driver.DspFuncLib          2.5.2fc2
    com.apple.vecLib.kext          1.0.0
    com.apple.iokit.IOAudioFamily          1.9.4fc11
    com.apple.kext.OSvKernDSPLib          1.14
    com.apple.driver.AppleHDAController          2.5.2fc2
    com.apple.iokit.IOHDAFamily          2.5.2fc2
    com.apple.driver.AppleSMC          3.1.6d1
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.driver.IOPlatformPluginFamily          5.5.1d27
    com.apple.driver.AppleGraphicsControl          3.4.12
    com.apple.driver.AppleBacklightExpert          1.0.4
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.0f6
    com.apple.iokit.IOFireWireIP          2.2.5
    com.apple.driver.AppleSMBusPCI          1.0.12d1
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IONDRVSupport          2.3.6
    com.apple.kext.AMDSupport          1.1.4
    com.apple.AppleGraphicsDeviceControl          3.4.12
    com.apple.iokit.IOGraphicsFamily          2.3.6
    com.apple.driver.AppleUSBHIDMouse          180.9
    com.apple.iokit.IOUSBHIDDriver          650.4.4
    com.apple.driver.AppleHIDMouse          180.9
    com.apple.driver.AppleUSBMergeNub          650.4.0
    com.apple.driver.AppleUSBComposite          650.4.0
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.0
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.iokit.IOATAPIProtocolTransport          3.5.0
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.0
    com.apple.iokit.IOUSBUserClient          650.4.4
    com.apple.iokit.IOAHCIFamily          2.6.0
    com.apple.iokit.IO80211Family          600.34
    com.apple.iokit.IONetworkingFamily          3.2
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.iokit.IOATAFamily          2.5.2
    com.apple.iokit.IOUSBFamily          650.4.4
    com.apple.driver.AppleEFINVRAM          2.0
    com.apple.driver.AppleEFIRuntime          2.0
    com.apple.iokit.IOHIDFamily          2.0.0
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          278.10
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.AppleKeyStore          2
    com.apple.driver.DiskImages          371.1
    com.apple.iokit.IOStorageFamily          1.9
    com.apple.iokit.IOReportFamily          21
    com.apple.driver.AppleFDEKeyStore          28.30
    com.apple.driver.AppleACPIPlatform          2.0
    com.apple.iokit.IOPCIFamily          2.8
    com.apple.iokit.IOACPIFamily          1.4
    com.apple.kec.corecrypto          1.0
    com.apple.kec.pthread          1
    Model: iMac8,1, BootROM IM81.00C1.B00, 2 processors, Intel Core 2 Duo, 2.4 GHz, 3 GB, SMC 1.29f1
    Graphics: ATI Radeon HD 2400 XT, ATI Radeon HD 2400, PCIe, 128 MB
    Memory Module: BANK 0/DIMM0, 2 GB, DDR2 SDRAM, 667 MHz, 0xAD00000000000000, 0x48594D503132355336344350382D53362020
    Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 667 MHz, 0x7F7F7F7F7F570000, 0x414554373630534430302D3330444D533852
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8C), Broadcom BCM43xx 1.0 (5.10.131.36.16)
    Bluetooth: Version 4.2.0f6 12982, 3 services, 23 devices, 1 incoming serial ports
    Network Service: Ethernet, Ethernet, en0
    Network Service: AirPort, AirPort, en1
    Serial ATA Device: Hitachi HDP725025GLA380, 250.06 GB
    Parallel ATA Device: OPTIARC  DVD RW AD-5630A
    USB Device: Built-in iSight
    USB Device: USB Keyboard
    USB Device: BRCM2046 Hub
    USB Device: Bluetooth USB Host Controller
    USB Device: Apple Optical USB Mouse
    USB Device: IR Receiver
    Thunderbolt Bus:

    I just plugged in the MiniDVI/HDMI adapter cable and I got a really flickery TV, does this suggest graphics card issues? If so how to I run a diagnostics test on Mavericks if I don't have the boot DVD? Thanks!

  • Connect imac to tv

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