[Intel-gfx] DG45ID: Use DVI after HDMI has been used?

[ykzhao]

On Tue, 2010-01-12 at 10:40 +0800, Will Saxon wrote:
> Hello,

Will you please confirm which kernel is used?

It will be great if you can open a new bug on  
bugs.freedesktop.org(Product=xorg, component = driver/intel) and attach
the following info:
    1. add the boot option of "drm.debug=0x06" and attach the output of
dmesg.
    2. attach the output of "xrandr -q --verbose"
    3. attach the vbios.dump, which can be obtained by using the
following command:
        echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom
        cat /sys/devices/pci0000:00/0000:00:02.0/rom
    4. attach the output of Xorg.0.log
    5. lspci -vxxx

thanks.
    Yakui
> 
> I have an Intel DG45ID connected to an increasingly-aggravating Westinghouse 
> LVM-42W2. I'm using intel driver 2.9.1. For a long time I used this 
> combination via one of the DVI inputs on the 42W2, but I recently switched to 
> HDMI.
> 
> Unfortunately, every time I power cycle the monitor the HDMI input won't work 
> anymore until the source (the DG45ID) is also rebooted. Until the computer is 
> rebooted I get a blank green screen; the monitor must be powered on during the 
> reboot for anything besides the green to display. I doubt this is an Intel 
> problem - I think it's probably something to do with HDCP handling on the 
> monitor - but I wanted to ask if there was a way to work around this in 
> software without requiring a total restart of the machine. Rebooting every 
> time I want to use this machine is awful.
> 
> What I wanted to do this evening was just move everything back to the DVI 
> input temporarily, since a program is recording and I don't want to reboot 
> right now. I figured I could do this by just moving cables and restarting X 
> remotely, however that did not work. The intel driver does not see any 
> connected outputs:
> 
> (II) intel(0): Integrated Graphics Chipset: Intel(R) G45/G43                                                                                                
> (--) intel(0): Chipset: "G45/G43"                                                                                                                           
> (II) intel(0): Output VGA1 has no monitor section                                                                                                           
> (II) intel(0): Output HDMI1 has no monitor section                                                                                                          
> (II) intel(0): Output DP1 has no monitor section                                                                                                            
> (II) intel(0): Output HDMI2 has no monitor section
> (II) intel(0): Output DP2 has no monitor section
> (II) intel(0): Output VGA1 disconnected
> (II) intel(0): Output HDMI1 disconnected
> (II) intel(0): Output DP1 disconnected
> (II) intel(0): Output HDMI2 disconnected
> (II) intel(0): Output DP2 disconnected
> (WW) intel(0): No outputs definitely connected, trying again...
> (II) intel(0): Output VGA1 disconnected
> (II) intel(0): Output HDMI1 disconnected
> (II) intel(0): Output DP1 disconnected
> (II) intel(0): Output HDMI2 disconnected
> (II) intel(0): Output DP2 disconnected
> (WW) intel(0): Unable to find initial modes
> (==) intel(0): video overlay key set to 0x101fe
> (EE) intel(0): No modes.
> (II) UnloadModule: "intel"
> (EE) Screen(s) found, but none have a usable configuration.
> 
> I expect that DVI will work again when I reboot the system. DVI does not 
> exhibit the green-screen problem when the monitor is power cycled.
> 
> Are either of these things able to be handled better by software, or is this a 
> case of a buggy monitor refusing to behave? I don't think I should have to 
> reboot the machine all the time. 
> 
> Thanks,
> 
> -Will
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