CRT_Emudriver and Radeon HD 4xxx series HDMI OUT?

[MushiMaster]

Hi guy's I am hoping somebody can answer this question as it will be a god send!

I noticed most of the Radeon HD 4xxx series have a VGA,DVI & HDMI output can anybody tell me if after installing the CRT Emudriver's you can still use the HDMI output on the card to display normal pc resolutions on a lcd monitor? If so how does this work is there an option to choose which output the card will use or does it mirror the VGA/DVI?

This will be amazing for me because i want to run mame on a European RBG scart TV at 15khz but still use the pc as normal on an lcd monitor for everything else like web browsing watching movies because its my main and only pc. please tell me this works lol.

[haynor666]

I set my PC temporarily to output 1920x1080 through VGA and 640x480i through DVI-VGA and that work. But groovymame if I remember works correctly right now only on Display1 - the same display to have to set as primary in order to get main desktop with menu start on LCD screen. On Display2, Display3 etc. groovymame does use switchres right now.

[Calamity]

MushiMaster,

You can ouput 15 kHz through VGA and normal PC resolutions through HDMI, at the same time. Just select the proper resolutions through the display properties dialog as you do with a normal setup.

The only problem is, because arcade monitors are usually not detected, as soon as you plug an HDMI device it will become primary, so that may be an issue with arcade setups, but not your case.

But groovymame if I remember works correctly right now only on Display1 - the same display to have to set as primary in order to get main desktop with menu start on LCD screen. On Display2, Display3 etc. groovymame does use switchres right now.

GroovyMAME works at whatever display, e.g.:

groovymame 1942 -screen \\.\DISPLAY1
groovymame 1942 -screen \\.\DISPLAY2

You just need to configure it properly based on the display you want to use. You can also use a multiple display config such as:

groovymame game -num_screens 2 -screen0  \\.\DISPLAY1 -screen1 \\.\DISPLAY2

In this case it is true that SwitchRes only creates custom modes for -screen0.

[haynor666]

And that's the point - no switchres on Display2 so most desired in my opinion function will not work though synctorefresh will be active, right?

Since he is planning to watch movies he needs primary display through HDMI leaving VGA or DVI as secondary.

MushiMaster, which system do You use?

[Calamity]

And that's the point - no switchres on Display2 so most desired in my opinion function will not work though synctorefresh will be active, right?

You don't get the point haynor666.

SwitchRes works at any display (1, 2, 3 or 27). It's only with *multi-screen* games when you enable more than 1 screen for MAME that SwicthRes can only operate on screen0.

[haynor666]

Ok, so I've messed with my previous configuration somehow :/ I did tests once again with gm 163 by setting in vertical.ini only screen0 \\.\DISPLAY2

I'm glad it has been solved, now I can use two TV - one for horizontal games and one for vertical. Thanks Calamity 

[MushiMaster]

Hi thanks for the useful replies, However i have  had a change of plan now because i found a cheap ASUS ATI HD 4870 Dark 512 MB for cheap on ebay instead with no hdmi out just two DVI's. Am i correct in thinking i can still run a 15khz crt and a lcd separately on each DVI output from display properties?

Which one will become primary? do i have to disconnect the CRT while windows boots for it to be safe?

[haynor666]

One of these DVI could digital only so You might be forced to use digital only port (usually secondary port) for LCD and primary DVI (analog/digital). My GTX770 has only one DVI that can output analog signal.

[MushiMaster]

One of these DVI could digital only so You might be forced to use digital only port (usually secondary port) for LCD and primary DVI (analog/digital). My GTX770 has only one DVI that can output analog signal.

I did not know this but i think you are right

This is my card

I just googled the diffrent DVI colors and found this.

yellow with a cross slot: DVI-I - carries both digital and analog signals. use this connector if your monitor has only a VGA interface
white with just a horizontal line slot: DVI-D - digital signal only.

Either may be used with DVI interface monitors.

Im not sure i understand this right, is it possible to set the digital only DVI as primary? If not would this mean i would have to disconnect the other analog/digital DVI port to use my pc at normal 1080p resolutions on digital only port?

[haynor666]

On picture both DVI seems to have pins for analog outputs, at least connectors are suitable.

On windows XP this is not a problem because DIPLAY1 and DISPLAY2 can be swapped but on windows 7 I had problem - I tried to output picture from Taito Type X games and I get picture only from DVI not matter how I set DISPLAYS. Look like windows 7 allow swap desktop to display2 but display1 is always bounded to DVI and display2 to second output. Hovewer I never tried to enable PC with only VGA connected then after a while connect second monitor to DVI. Maybe this would revert order.

[Calamity]

Im not sure i understand this right, is it possible to set the digital only DVI as primary? If not would this mean i would have to disconnect the other analog/digital DVI port to use my pc at normal 1080p resolutions on digital only port?

Both of those ports are very likely DVI-I, regardless of the color, because they have the cross pattern. I've seen DVI-D digital only with the cross too, which is misleading, e.g. in the Asus HD 6450, but they're not common.

From Windows, you can set any output to be primary, secondary, whatever. No limitations. The problem is not that.

The problem has to do with arcade monitor detection. Because arcade monitors are usually not detected by the usual detection protocols, a video card will blank the output where an arcade monitor is attached. However, when a video card detects NO monitors, it will leave one of the outputs unblanked and send video through it. This is the "vga-enabled" output, and I believe it's a legacy behaviour. We exploit this behaviour to overcome monitor detection issues. We often say "find your card's primary output" when we should be saying "vga-enabled" output, because any output can be "primary", it's a software term, while only one of them is the "vga-enabled" or default output, which is a hardware concept.

No, let's say you boot your computer with a pc monitor attached to one DVI-I and an arcade monitor plugged to the "vga-enabled" DVI-I. Because the pc monitor is detected, if the arcade monitor is not, it will turn off its ouput even if it's the vga-enabled, because it already has a working monitor so it won't feel the need to default to the vga-enabled output. On the other hand, if the arcade monitor is detected, even if you force detection by using resistors, the card won't blank its output on boot, and keep the configuration with or without the pc monitor attached.

EDIT, By vga-enabled I don't mean analog-capable output. You can have several analog-capable outputs, either vga or dvi-i, but only one of them is the default, vga-enabled output.

[MushiMaster]

Thank you for taking the time to write that  lengthy reply  calamity i appreciate it and it makes sense now  .

My GPU and CRT Scart TV have both arrived now and im just waiting on my custom RBG scart cable to connect everything up! i can't wait!

I have one final question.

Can i install CRT Emudriver now on my LCD just to see how the program works etc while i wait for my scart cable? or do i need to wait until i have my CRT connected? If i install CRT Emudriver when i re-boot my pc the card will now be outputing 15khz right?, what im not sure about is how i then go about connecting my LCD, isn't 15khz bad for a lcd or out of range for it to work? Do i need to use the CRT to change the resolution and frequency via display properties before connecting the lcd again after install?

[haynor666]

Some LCD (with HDMI) will support 15kHz, my Asus do (even 240x240 works but only close to 60 Hz), also my Lenovo at work accepts interlaced resolutions. Personally I connected 2 monitors using soft15kHz and VMMaker - those didn't accepted low resolutions nothing but bad happens. Maybe I had luck or maybe modern monitors filtering unsupported modes.

[MushiMaster]

I think i will be safe and not connect my LCD after first installing until i can change the display output. What is the default resolution CRT EMU boots at once installed?

[MushiMaster]

I have just found an old mobo with integrated graphics, is it possible to use both integrated graphics and a ATI HD4750 at the same time? HD4750 for games on CRT/Arcade monitor and The motherboards integrated graphics for a LCD PC monitor?

I would want the PC LCD monitor as primary monitor  how would i then load mame etc onto the other monitor and not the pc monitor?