<![CDATA[MME4CRT Forum - Knowledge base]]> https://mme4crt.alphanudesign.co.uk/forum/ Sun, 19 Apr 2026 08:33:40 +0000 MyBB <![CDATA[Linux Multiple Monitor Setup]]> https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=57 Thu, 25 Apr 2019 14:22:39 +0000 https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=57
Some times this can be hard to get right.

Simple steps are to choose your monitor index from within retroarch settings. Change this from auto to either 1, 2 or 3 depending which output you want to use. That was the easy bit!

To actually get this you work you need to enable extend display and not have mirrored displays. this can be done via the Linux display settings or using an application like Arandr. With Arandr and some display setting managers these settings aren't saved on reboot. In this case use Arandr, make your changes then save the layout. open the layout file and copy the line into either your .xprofile or Openbox autostart file.

Note that when you extend your display you need to do them in the order that the display output appears. Otherwise this will not work properly. type 
Code:
xrandr | grep " connected" |  awk '{print$1}'
in terminal to find the order of you displays. remember that MME4CRT does not count disconnected outputs. So, this command only shows connected outputs. If your CRT is connected to VGA and this comes before the output for your LCD you need to ensure that when you extend your displays, you put the CRT on the left. Otherwise make sure its on the right. 


Once this is done. you are good to go.]]>
Some times this can be hard to get right.

Simple steps are to choose your monitor index from within retroarch settings. Change this from auto to either 1, 2 or 3 depending which output you want to use. That was the easy bit!

To actually get this you work you need to enable extend display and not have mirrored displays. this can be done via the Linux display settings or using an application like Arandr. With Arandr and some display setting managers these settings aren't saved on reboot. In this case use Arandr, make your changes then save the layout. open the layout file and copy the line into either your .xprofile or Openbox autostart file.

Note that when you extend your display you need to do them in the order that the display output appears. Otherwise this will not work properly. type 
Code:
xrandr | grep " connected" |  awk '{print$1}'
in terminal to find the order of you displays. remember that MME4CRT does not count disconnected outputs. So, this command only shows connected outputs. If your CRT is connected to VGA and this comes before the output for your LCD you need to ensure that when you extend your displays, you put the CRT on the left. Otherwise make sure its on the right. 


Once this is done. you are good to go.]]> <![CDATA[MME4CRT Vs Real Hardware]]> https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=51 Fri, 15 Mar 2019 21:01:48 +0000 https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=51
The ultimate goal is to get every console looking as close to the real hardware as possible in terms of geometry and this is a pretty tall order at the moment given that the same resolution on two different consoles can have very different video timings leading to quite different looking video output. The issue being that right now, we can't differentiate between cores or systems. This will hopefully change in the future but right now, we have to make compromises.

I don't think we are doing too badly with all that said, but core and Retroarch settings need to be documented (sticky incoming) to get the best from MME4CRT. The "beetle" (Mednafen) cores are a particular problem with their use of static heights and in some cases static widths.

So for now, on with the show!



Real Megadrive via composite (only cable I had to test with at the time):
[Image: KJa9XIx.jpg]

Retroarch with composite on the same TV using my own composite converter which uses the same composite encoder as the Megadrive:
[Image: GHLNLbI.jpg]


I'll update this thread as and when new comparisons are made or the code changes and I have access to the consoles.]]>
The ultimate goal is to get every console looking as close to the real hardware as possible in terms of geometry and this is a pretty tall order at the moment given that the same resolution on two different consoles can have very different video timings leading to quite different looking video output. The issue being that right now, we can't differentiate between cores or systems. This will hopefully change in the future but right now, we have to make compromises.

I don't think we are doing too badly with all that said, but core and Retroarch settings need to be documented (sticky incoming) to get the best from MME4CRT. The "beetle" (Mednafen) cores are a particular problem with their use of static heights and in some cases static widths.

So for now, on with the show!



Real Megadrive via composite (only cable I had to test with at the time):
[Image: KJa9XIx.jpg]

Retroarch with composite on the same TV using my own composite converter which uses the same composite encoder as the Megadrive:
[Image: GHLNLbI.jpg]


I'll update this thread as and when new comparisons are made or the code changes and I have access to the consoles.]]> <![CDATA[Interlaced issues workaround]]> https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=27 Tue, 19 Feb 2019 16:03:09 +0000 https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=27
Hopefully, well have a better fix soon.]]>
Hopefully, well have a better fix soon.]]> <![CDATA[Windows resolutions needed for MME4CRT]]> https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=24 Mon, 18 Feb 2019 16:11:51 +0000 https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=24 CRT 15Khz Resolution Switching


CRT SwitchRes will turn on, on the fly. However, you will need to restart RetroArch to disable it. With CRT SwitchRes enable RetroArch will start in 2560 x 240 @ 60.

Before enabling the CRT SwitchRes options please make sure you have installed CRTEmudriver and installed some modelines. You will need to install these in static mode. this option can be found in the setting for VMMaker. The minimum modelines for all games to switch correctly are:

  • 2560 x 192 @ 60.000000

  • 2560 x 200 @ 60.000000

  • 2560 x 240 @ 60.000000

  • 2560 x 224 @ 60.000000

  • 2560 x 237 @ 60.000000

  • 2560 x 256 @ 50.000000

  • 2560 x 254 @ 55.000000

  • 2560 x 448 @ 60.000000

  • 2560 x 480 @ 60.000000


Install these modelines replacing 2560 with your desired super resolution. The above resolutions are NTSC only so if you would be playing any PAL content please add PAL modelines:

  • 2560 x 192 @ 50.000000

  • 2560 x 200 @ 50.000000

  • 2560 x 240 @ 50.000000

  • 2560 x 224 @ 50.000000

  • 2560 x 288 @ 50.000000

  • 2560 x 237 @ 50.000000

  • 2560 x 254 @ 55.000000

  • 2560 x 448 @ 50.000000

  • 2560 x 480 @ 50.000000


Some games will require higher PAL resolutions which should also be installed:

  • 2560 x 512 @ 50.000000

  • 2560 x 576 @ 50.000000
Ideally install all these resolutions and everything will work great.

Super Resolutions

The default super resolution is 2560. It is displayed just under the CRT switch option, which can be found in video settings. This can be changed within the CRTSwitchRes options. The only compatible resolutions are 1920, 2560 and 3840. Any other resolutions will be ignored and native switching will be activated.

Native Resolutions

If native resolutions are activated you will need a whole new set of modelines:

  • 256 x 240 @ 50.006977 SNESpal

  • 256 x 448 @ 50.006977 SNESpal

  • 512 x 224 @ 50.006977 SNESpal

  • 512 x 240 @ 50.006977 SNESpal

  • 512 x 448 @ 50.006977 SNESpal

  • 256 x 240 @ 60.098812 SNESntsc

  • 256 x 448 @ 60.098812 SNESntsc

  • 512 x 240 @ 60.098812 SNESntsc

  • 512 x 224 @ 60.098812 SNESntsc

  • 512 x 448 @ 60.098812 SNESntsc

  • 256 x 192 @ 59.922745 MDntsc

  • 256 x 224 @ 59.922745 MDntsc

  • 320 x 224 @ 59.922745 MDntsc

  • 320 x 240 @ 59.922745 MDntsc

  • 320 x 448 @ 59.922745 MDntsc

  • 320 x 480 @ 59.922745 MDntsc

  • 256 x 192 @ 49.701458 MDpal

  • 256 x 224 @ 49.701458 MDpal

  • 320 x 224 @ 49.701458 MDpal

  • 320 x 240 @ 49.701458 MDpal

  • 320 x 288 @ 49.701458 MDpal

  • 320 x 448 @ 49.701458 MDpal

  • 320 x 480 @ 49.701458 MDpal

  • 320 x 576 @ 49.701458 MDpal

  • 256 x 288 @ 49.701458 MSYSpal

  • 256 x 240 @ 60.098812 NESntsc

  • 256 x 240 @ 50.006977 NESpal

  • 640 x 237 @ 60.130001 N64ntsc

  • 640 x 240 @ 60.130001 N64ntsc

  • 640 x 480 @ 60.130001 N64ntsc

  • 640 x 288 @ 50.000000 N64pal

  • 640 x 480 @ 50.000000 N64pal

  • 640 x 576 @ 50.000000 N64pal

  • 256 x 252 @ 49.759998 PSXpal

  • 320 x 252 @ 49.759998 PSXpal

  • 384 x 252 @ 49.759998 PSXpal

  • 640 x 252 @ 49.759998 PSXpal

  • 640 x 540 @ 49.759998 PSXpal

  • 384 x 240 @ 59.941002 PSXntsc

  • 256 x 480 @ 59.941002 PSXntsc

  • 352 x 240 @ 59.820000 Saturn/SGFX_NTSCp

  • 704 x 240 @ 59.820000 SaturnNTSCp

  • 352 x 480 @ 59.820000 SaturnNTSCi

  • 704 x 480 @ 59.820000 SaturnNTSCi

  • 352 x 288 @ 49.701458 SaturnPALp

  • 704 x 288 @ 49.701458 SaturnPALp

  • 352 x 576 @ 49.701458 SaturnPALi

  • 704 x 576 @ 49.701458 SaturnPALi

  • 240 x 160 @ 59.730000 GBA

  • 320 x 200 @ 60.000000 Doom

  • 400 x 254 @ 54.706841 MK

  • 384 x 224 @ 59.637405 CPS1

DYNAMIC Super Resolutions

List is coming soon.]]> CRT 15Khz Resolution Switching


CRT SwitchRes will turn on, on the fly. However, you will need to restart RetroArch to disable it. With CRT SwitchRes enable RetroArch will start in 2560 x 240 @ 60.

Before enabling the CRT SwitchRes options please make sure you have installed CRTEmudriver and installed some modelines. You will need to install these in static mode. this option can be found in the setting for VMMaker. The minimum modelines for all games to switch correctly are:

  • 2560 x 192 @ 60.000000

  • 2560 x 200 @ 60.000000

  • 2560 x 240 @ 60.000000

  • 2560 x 224 @ 60.000000

  • 2560 x 237 @ 60.000000

  • 2560 x 256 @ 50.000000

  • 2560 x 254 @ 55.000000

  • 2560 x 448 @ 60.000000

  • 2560 x 480 @ 60.000000


Install these modelines replacing 2560 with your desired super resolution. The above resolutions are NTSC only so if you would be playing any PAL content please add PAL modelines:

  • 2560 x 192 @ 50.000000

  • 2560 x 200 @ 50.000000

  • 2560 x 240 @ 50.000000

  • 2560 x 224 @ 50.000000

  • 2560 x 288 @ 50.000000

  • 2560 x 237 @ 50.000000

  • 2560 x 254 @ 55.000000

  • 2560 x 448 @ 50.000000

  • 2560 x 480 @ 50.000000


Some games will require higher PAL resolutions which should also be installed:

  • 2560 x 512 @ 50.000000

  • 2560 x 576 @ 50.000000
Ideally install all these resolutions and everything will work great.

Super Resolutions

The default super resolution is 2560. It is displayed just under the CRT switch option, which can be found in video settings. This can be changed within the CRTSwitchRes options. The only compatible resolutions are 1920, 2560 and 3840. Any other resolutions will be ignored and native switching will be activated.

Native Resolutions

If native resolutions are activated you will need a whole new set of modelines:

  • 256 x 240 @ 50.006977 SNESpal

  • 256 x 448 @ 50.006977 SNESpal

  • 512 x 224 @ 50.006977 SNESpal

  • 512 x 240 @ 50.006977 SNESpal

  • 512 x 448 @ 50.006977 SNESpal

  • 256 x 240 @ 60.098812 SNESntsc

  • 256 x 448 @ 60.098812 SNESntsc

  • 512 x 240 @ 60.098812 SNESntsc

  • 512 x 224 @ 60.098812 SNESntsc

  • 512 x 448 @ 60.098812 SNESntsc

  • 256 x 192 @ 59.922745 MDntsc

  • 256 x 224 @ 59.922745 MDntsc

  • 320 x 224 @ 59.922745 MDntsc

  • 320 x 240 @ 59.922745 MDntsc

  • 320 x 448 @ 59.922745 MDntsc

  • 320 x 480 @ 59.922745 MDntsc

  • 256 x 192 @ 49.701458 MDpal

  • 256 x 224 @ 49.701458 MDpal

  • 320 x 224 @ 49.701458 MDpal

  • 320 x 240 @ 49.701458 MDpal

  • 320 x 288 @ 49.701458 MDpal

  • 320 x 448 @ 49.701458 MDpal

  • 320 x 480 @ 49.701458 MDpal

  • 320 x 576 @ 49.701458 MDpal

  • 256 x 288 @ 49.701458 MSYSpal

  • 256 x 240 @ 60.098812 NESntsc

  • 256 x 240 @ 50.006977 NESpal

  • 640 x 237 @ 60.130001 N64ntsc

  • 640 x 240 @ 60.130001 N64ntsc

  • 640 x 480 @ 60.130001 N64ntsc

  • 640 x 288 @ 50.000000 N64pal

  • 640 x 480 @ 50.000000 N64pal

  • 640 x 576 @ 50.000000 N64pal

  • 256 x 252 @ 49.759998 PSXpal

  • 320 x 252 @ 49.759998 PSXpal

  • 384 x 252 @ 49.759998 PSXpal

  • 640 x 252 @ 49.759998 PSXpal

  • 640 x 540 @ 49.759998 PSXpal

  • 384 x 240 @ 59.941002 PSXntsc

  • 256 x 480 @ 59.941002 PSXntsc

  • 352 x 240 @ 59.820000 Saturn/SGFX_NTSCp

  • 704 x 240 @ 59.820000 SaturnNTSCp

  • 352 x 480 @ 59.820000 SaturnNTSCi

  • 704 x 480 @ 59.820000 SaturnNTSCi

  • 352 x 288 @ 49.701458 SaturnPALp

  • 704 x 288 @ 49.701458 SaturnPALp

  • 352 x 576 @ 49.701458 SaturnPALi

  • 704 x 576 @ 49.701458 SaturnPALi

  • 240 x 160 @ 59.730000 GBA

  • 320 x 200 @ 60.000000 Doom

  • 400 x 254 @ 54.706841 MK

  • 384 x 224 @ 59.637405 CPS1

DYNAMIC Super Resolutions

List is coming soon.]]> <![CDATA[Config.txt resolution for RPi]]> https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=15 Sat, 16 Feb 2019 03:02:08 +0000 https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=15 what about config.txt resolution for to use 1920 super resolution crtswitchress on 15Khz?
i dont need to take care of it or 320x240 is needed?]]> what about config.txt resolution for to use 1920 super resolution crtswitchress on 15Khz?
i dont need to take care of it or 320x240 is needed?]]> <![CDATA[Installing 15khz desktop resolution on Linux x11]]> https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=5 Thu, 14 Feb 2019 08:59:17 +0000 https://mme4crt.alphanudesign.co.uk/forum/showthread.php?tid=5 In this file you will need to add some xrandr command line code. Replacing $output with your output ID that your CRT will be connected to (VGA-0, DVI-1 etc). To find this ID load up a terminal windows and just type "xrandr | grep " connected" | awk '{print$1}' " without the double quotes. this will list all connected devices.
Code:
xrandr --newmode "700x480_59.941002" 13.849698 700 742 801 867 480 490 496 533 interlace -hsync -vsync && xrandr --newmode "700x480_59.941002" 13.849698 700 742 801 867 480 490 496 533 interlace -hsync -vsync
xrandr --addmode $output 700x480_59.941002
xrandr --output $output --mode 700x480_59.941002

Or for simplicity you could run my 15hkz installer which can be found here. Will automate this process for you.]]> In this file you will need to add some xrandr command line code. Replacing $output with your output ID that your CRT will be connected to (VGA-0, DVI-1 etc). To find this ID load up a terminal windows and just type "xrandr | grep " connected" | awk '{print$1}' " without the double quotes. this will list all connected devices.
Code:
xrandr --newmode "700x480_59.941002" 13.849698 700 742 801 867 480 490 496 533 interlace -hsync -vsync && xrandr --newmode "700x480_59.941002" 13.849698 700 742 801 867 480 490 496 533 interlace -hsync -vsync
xrandr --addmode $output 700x480_59.941002
xrandr --output $output --mode 700x480_59.941002

Or for simplicity you could run my 15hkz installer which can be found here. Will automate this process for you.]]>