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Switchres comes to RetroA...
Forum: Latest News
Last Post: alphanu
06-10-2021, 08:02 PM
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» Views: 7,518
Dynamic resolution issues
Forum: Support
Last Post: alphanu
04-19-2021, 08:03 AM
» Replies: 1
» Views: 2,652
Official Public Release
Forum: Mubuntu OS Public Release
Last Post: alphanu
04-19-2021, 08:00 AM
» Replies: 24
» Views: 43,042
Few questions for 240p
Forum: General discussion
Last Post: atohmdiy
12-05-2020, 06:10 PM
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New CRTSwitchRes update
Forum: Latest News
Last Post: alphanu
09-10-2020, 02:18 PM
» Replies: 0
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MME4CRT on Lubuntu - squi...
Forum: Issues
Last Post: alphanu
09-03-2020, 02:28 PM
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MME4CRT on Lubuntu - squi...
Forum: Support
Last Post: alphanu
09-03-2020, 02:26 PM
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CRT Turns off when enabli...
Forum: Support
Last Post: Jouster
07-31-2020, 01:23 AM
» Replies: 0
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Over/Under scan adjustmen...
Forum: Latest News
Last Post: alphanu
07-27-2020, 03:12 PM
» Replies: 0
» Views: 1,998
Got it working, just a fe...
Forum: Support
Last Post: Mizkreant
07-16-2020, 04:23 PM
» Replies: 1
» Views: 3,159

  Linux: using xrandr to display only a segment of the screen
Posted by: ArcadeTV - 03-07-2019, 02:52 PM - Forum: Discussion - Replies (1)

Since I moved pretty much all my retrogaming/emulation activity to linux, I see and learn new things every day...

Yesterday I came across this post:

I had no idea xrandr was able to feed a predefined segment of a video-output to a monitor.

xrandr --output VGA1 --scale-from 320x240 --pos 1x1

With my intel GPU I'm using Super Resolutions (mostly 2560x240) and often times I see the output-image is scaled out of proportions when running apps like desktops, emulationstation gui, scummvm etc.

What I did is switching to a super resolution and then run the proposed code to correct the issue.
I was excited to realize that it worked out of the box and the image on my crt looked great.

Now I guess there has to be a drawback using this method - there's got to be, because nobody would use super resolutions instead, right?
Could it be that this method may cause vsync and/or tearing issues?
Since I only tested it with mostly static scenarios like scummvm, maldita castilla for linux and the lxde desktop I haven't seen any issues.

So, let me rephrase the question...
If I was able to create a perfect 320x240@60Hz (or ANY other!) output on my crt with this method, why would I bother to use super resolutions?

I think a super resolution is only needed in the first place to prepare the canvas in terms of height.. Using the segmented output I could create any width I could think of. I have to admit, I have no idea how refresh rates are handled within this concept.

Maybe I'm wrong about this - could somebody please enlighten me?

  Intel custom resolutions with official tool
Posted by: ArcadeTV - 03-06-2019, 08:26 AM - Forum: Discussion - Replies (1)


It looks like intel is pretty non-restrictive when it comes to custom resolutions. It's the pc-manufacturers that enforce certain display modes and lock custom resolutions.

I'd love to know if there's a way to unlock these restrictions ...

  RPi problem with mame2003+, mame2010
Posted by: FreZeeN - 03-04-2019, 08:31 PM - Forum: Issues - Replies (5)

mame2003 plus and mame2010 dont set original refresh rate.. fbalpha do it

for example: neogeo games launched with mame2003+ and mame2010 running at 60hz, fba running them at 59.180
1944 too has problems, 60hz with mame , 59.630 with fbalpha

i missing some options in mame maybe?

  VIA EPIA ek integrated graphics
Posted by: paul - 03-04-2019, 05:15 PM - Forum: Requests - Replies (4)

I have an old via epia mini-itx motherboard, model EK10000g with integrated video, a VIA C-PRO


Any chance on using it for 15khz MME4CRT without adding a pci graphic card?

  MME4CRT OS LIVE CD and Installer
Posted by: alphanu - 03-02-2019, 10:10 PM - Forum: Latest News - Replies (3)

No much to explain here. 

Check out the video for details,

https://www.youtube.com/watch?v=4mYhKFlvmB4  Old Alpha test.


The alpha test ISO can be found here. in live cd mode or after install. load RetroArch, enable CRTSwitchRes then connect your CRT.


  vertical games on horizontal monitor
Posted by: FreZeeN - 03-01-2019, 10:06 AM - Forum: Requests - Replies (4)

can we have "adaptive resolution" for vertical games on horizontal crt with interlaced resolution how advancedmame  do?

  Lovely small PC: HP Elite 8000 USDT
Posted by: ArcadeTV - 03-01-2019, 06:39 AM - Forum: Discussion - Replies (4)

My employer (a newspaper company) upgraded their office PC's and is selling off their old hardware.


It's a HP Elite 8000 ultra small formfactor:

  • Core2Duo 3,16 GHz, E8500
  • 4 GB DDR3 Ram
  • 250 GB HDD, 7200 RPM
  • Intel GMA-4 GPU
  • 6 * USB 2.0, 1 * VGA, 1 * LAN, 1 * Audio, 2 * PS/2, 1 * Displayport
  • Dimensions: 25 x 25 x 7 cm, Weight: 3 KG
The System is pretty much ideal for a PC-to-CRT setup.



They are selling these off for 30€, if anybody wants to get one I can arrange shipping etc.
I'm located near Bielefeld, DE.

  N64 cores won't change resolution
Posted by: naytai - 02-28-2019, 01:05 PM - Forum: Support - Replies (3)

Hi, @alphanu 

neither of N64 cores (parallel, mupen64plus and mupen64plus-next) are switching to native resolutions. They render only at the desktop resolution, 640x480 in my case. I'm on windows 10 using CRTEmudriver and NATIVE 15khz settings on mm4crt. Also, I have these modelines installed with vmmaker for n64:

384 x 288 @ 60.000000 n64
480 x 360 @ 60.000000 n64
640 x 222 @ 60.000000 n64
400 x 440 @ 60.000000 n64

When using the regular ReatroArch build, they switch only to 320x240, no matter the game.

  MME4CRT not switching back to desktop resolution
Posted by: Edomatic - 02-27-2019, 06:33 PM - Forum: Issues - Replies (1)

I have an issue on windows 7 using retroarch 1.7.6 where when i launch a game and exit from it, the desktop resolution is not restored
Is that a setting i have to enable somewhere?
My desktop is on 640x480 @ 60hz
Also i notice that i have what sound like crackled sound in most games and emulators in tetrarch, using FBalpha latest, game libretto latest and also in genesis fx plus

My machine should be able to handle the audio i believe :

windows 7
core i7 with 8GB ram
HD5450 radeon with emu driver
SSD disk

Mame 0.206 with groovymame is also installed on this same machine and works great (it's a version with portaudio using d3d9ex)

I attached my current retroarch.cfg file

  RPi Compile error
Posted by: FreZeeN - 02-26-2019, 08:39 PM - Forum: Issues - Replies (3)

CC gfx/video_driver.c
CC gfx/video_crt_switch.c
gfx/video_crt_switch.c: In function ‘switch_res_crt’:
gfx/video_crt_switch.c:117:4: error: too many arguments to function ‘crt_rpi_switch’
    crt_rpi_switch(ra_core_width, native_core_width, height, ra_core_hz);
gfx/video_crt_switch.c:33:13: note: declared here
 static void crt_rpi_switch(int width, int height, float hz);
Makefile:199: recipe for target 'obj-unix/release/gfx/video_crt_switch.o' failed
make: *** [obj-unix/release/gfx/video_crt_switch.o] Error 1