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Add support for (something like) JoinTILE #12

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rubin55 opened this issue Jan 14, 2024 · 7 comments
Open

Add support for (something like) JoinTILE #12

rubin55 opened this issue Jan 14, 2024 · 7 comments

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@rubin55
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rubin55 commented Jan 14, 2024

The current version of hax11 supports JoinMST, which makes it possible to present a screen that presents itself as two or more xrandr screens using MST, as one.

Another way this is done is with the TILE property. A good example of this is the Dell UP3218k 8K monitor, which is attached using two DisplayPort 1.4 cables. This screen presents itself as two 3840x4320 screens, a left and a right, with TILE information, that lets modern drivers (Nvidia, AMDGPU) set up the display "as one". However, Xrandr, will still see two connectors. Example xrandr --query output:

Screen 0: minimum 8 x 8, current 11520 x 4320, maximum 32767 x 32767
HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
   3840x2160     60.00*+  59.94    50.00    29.97    25.00    23.98  
   2560x1440     59.95  
   1920x1080     60.00    59.94    50.00    29.97    25.00    23.98  
   1680x1050     59.95  
   1600x1200     60.00  
   1440x900      59.89  
   1400x1050     59.98  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x720      60.00    59.94    50.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93  
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected 3840x4320+3840+0 (normal left inverted right x axis y axis) 700mm x 390mm
   3840x2160     60.00 +  29.98  
   7680x4320     29.93    24.00  
   3840x4320     60.00*   48.00  
   2560x1440     59.95  
   2048x1080     59.99    23.90  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    23.98  
   1680x1050     59.95  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x800      59.81  
   1280x720      59.94    50.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94    59.93  
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 connected 3840x4320+7680+0 (normal left inverted right x axis y axis) 700mm x 390mm
   3840x2160     60.00 +  29.98  
   7680x4320     29.93    24.00  
   3840x4320     60.00*   48.00  
   2560x1440     59.95  
   2048x1080     59.99    23.90  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    23.98  
   1680x1050     59.95  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x800      59.81  
   1280x720      59.94    50.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94    59.93  
DP-5 disconnected (normal left inverted right x axis y axis)

In the Above, DP-2 and DP-4 are the connectors attached to the TILE'd display. Example xrandr --listactivemonitors output:

Monitors: 2
 0: +*HDMI-0 3840/344x2160/193+0+0  HDMI-0
 1: DELL UP3218K-495 7680/700x4320/390+3840+0  DP-2 DP-4

It would be great if a new feature, maybe called JoinTILE or a more generic Join could also handle these kind of monitors that instead of MST use TILE.
@rubin55
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rubin55 commented Jan 14, 2024

For completeness' sake, also output for xrandr --props here:

Screen 0: minimum 8 x 8, current 11520 x 4320, maximum 32767 x 32767
HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
	_MUTTER_PRESENTATION_OUTPUT: 0 
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	EDID: 
		00ffffffffffff005a633f6601010101
		1c210103802213782a38d5ae513bb823
		0b5054bfef80d1c0b300a94095009040
		8180814081c050d000a0f0703e803020
		350058c11000001e000000ff00584241
		3233323830303730380a000000fd0028
		4b0fa03c000a202020202020000000fc
		005658313635352d4f4c45440a2001fc
		020349f153010304050710121314161f
		20212260615d5e5f23097f0783010000
		6d030c001000387820006001020367d8
		5dc401788003e305e301e40f00c007e6
		0607016d6d02e200d5565e00a0a0a029
		503020350058c11000001e023a801871
		382d40582c450058c11000001e000000
		0000000000000000000000000000006a
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: HDMI 
	ConnectorNumber: 3 
	_ConnectorLocation: 3 
	non-desktop: 0 
		supported: 0, 1
   3840x2160     60.00*+  59.94    50.00    29.97    25.00    23.98  
   2560x1440     59.95  
   1920x1080     60.00    59.94    50.00    29.97    25.00    23.98  
   1680x1050     59.95  
   1600x1200     60.00  
   1440x900      59.89  
   1400x1050     59.98  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x720      60.00    59.94    50.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93  
DP-0 disconnected (normal left inverted right x axis y axis)
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: DisplayPort 
		supported: DisplayPort
	ConnectorType: DisplayPort 
	ConnectorNumber: 2 
	_ConnectorLocation: 2 
	non-desktop: 0 
		supported: 0, 1
DP-1 disconnected (normal left inverted right x axis y axis)
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: DisplayPort 
	ConnectorNumber: 2 
	_ConnectorLocation: 2 
	non-desktop: 0 
		supported: 0, 1
DP-2 connected 3840x4320+3840+0 (normal left inverted right x axis y axis) 700mm x 390mm
	_MUTTER_PRESENTATION_OUTPUT: 0 
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	TILE: 495 1 2 1 0 0 3840 4320 
	EDID: 
		00ffffffffffff0010ac47414c393730
		01200104b54627783a7645ae5133ba26
		0d5054a54b008100b300d100a9408180
		d1c0010101014dd000a0f0703e803020
		3500ba892100001a000000ff0036324e
		57523231343037394c0a000000fc0044
		454c4c205550333231384b0a000000fd
		00184b1eb46c010a20202020202002b1
		02031df150101f200514041312110302
		161507060123091f0783010000a36600
		a0f0701f8030203500ba892100001a56
		5e00a0a0a0295030203500ba89210000
		1a7c3900a080381f4030203a00ba8921
		00001aa81600a08038134030203a00ba
		892100001a0000000000000000000000
		00000000000000000000000000000047
		701279000012001682100000ff0edf10
		000000000044454c47414c3937300301
		5070920184ff1dc7001d800900df102f
		0002000400c1420184ff1dc7002f801f
		00df10300002000400a84e0104ff0ec7
		002f801f00df10610002000900979d01
		04ff0ec7002f801f00df102f00020009
		00000000000000000000000000009490
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: DisplayPort 
		supported: DisplayPort
	ConnectorType: DisplayPort 
	ConnectorNumber: 1 
	_ConnectorLocation: 1 
	non-desktop: 0 
		supported: 0, 1
   3840x2160     60.00 +  29.98  
   7680x4320     29.93    24.00  
   3840x4320     60.00*   48.00  
   2560x1440     59.95  
   2048x1080     59.99    23.90  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    23.98  
   1680x1050     59.95  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x800      59.81  
   1280x720      59.94    50.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94    59.93  
DP-3 disconnected (normal left inverted right x axis y axis)
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: DisplayPort 
	ConnectorNumber: 1 
	_ConnectorLocation: 1 
	non-desktop: 0 
		supported: 0, 1
DP-4 connected 3840x4320+7680+0 (normal left inverted right x axis y axis) 700mm x 390mm
	_MUTTER_PRESENTATION_OUTPUT: 0 
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	TILE: 495 1 2 1 1 0 3840 4320 
	EDID: 
		00ffffffffffff0010ac47414c393730
		01200104b54627783a7645ae5133ba26
		0d5054a54b008100b300d100a9408180
		d1c0010101014dd000a0f0703e803020
		3500ba892100001a000000ff0036324e
		57523231343037394c0a000000fc0044
		454c4c205550333231384b0a000000fd
		00184b1eb46c010a20202020202002b1
		02031df150101f200514041312110302
		161507060123091f0783010000a36600
		a0f0701f8030203500ba892100001a56
		5e00a0a0a0295030203500ba89210000
		1a7c3900a080381f4030203a00ba8921
		00001aa81600a08038134030203a00ba
		892100001a0000000000000000000000
		00000000000000000000000000000047
		701279000012001682101000ff0edf10
		000000000044454c47414c3937300301
		5070920184ff1dc7001d800900df102f
		0002000400c1420184ff1dc7002f801f
		00df10300002000400a84e0104ff0ec7
		002f801f00df10610002000900979d01
		04ff0ec7002f801f00df102f00020009
		00000000000000000000000000008490
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: DisplayPort 
		supported: DisplayPort
	ConnectorType: DisplayPort 
	ConnectorNumber: 0 
	_ConnectorLocation: 0 
	non-desktop: 0 
		supported: 0, 1
   3840x2160     60.00 +  29.98  
   7680x4320     29.93    24.00  
   3840x4320     60.00*   48.00  
   2560x1440     59.95  
   2048x1080     59.99    23.90  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    23.98  
   1680x1050     59.95  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x800      59.81  
   1280x720      59.94    50.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94    59.93  
DP-5 disconnected (normal left inverted right x axis y axis)
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: DisplayPort 
	ConnectorNumber: 0 
	_ConnectorLocation: 0 
	non-desktop: 0 
		supported: 0, 1

Ignore HDMI-0, That's just a regular 4K monitor; the Dell 8K is on DP-2 and DP-4. Note the TILE: entries.

@CyberShadow
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So if I understand correctly, the suggestion is to:

  1. Query the tiles/monitors using XRandR 1.5
  2. Present the monitor output tiles as a single output, so that applications which do not support XRandR 1.5 monitors see tiles as a single output?

@rubin55
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rubin55 commented Jan 14, 2024 •
edited
Loading

Yes, more or less: the "problem" with these displays when gaming for example, is very similar as what you describe in your README.md with MST-using monitors: A game would see one half of the display, and then try and 16:9 fullscreen to that, giving you a weird 3840x2160 on one half of your screen, right in the middle of the half:

-------------------------------------
|   black border  |                 |
|-----------------|                 |
|    game 16:9    |                 |
|                 |   still shows   |
|-----------------|     half of     |
|   black border  |     desktop     |
-------------------------------------
      (DP-2)            (DP-4)

@CyberShadow
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OK, though JoinMST should still work there, just with manual configuration instead of getting data out of XRandR. (JoinMST is not a very good name.)

@rubin55
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rubin55 commented Jan 14, 2024

Fair enough, I thought JoinMST was MST only, because, when I would run xrandr with LD_PRELOAD set-up, It still shows me all displays + ports and all monitors, which put me on the track "this probably doesn't work with TILE'd displays, only MST".

Could you provide me with an example configuration that would make this work?

@CyberShadow
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I think this should work:

Enable=1
JoinMST=1
MainX=3840
MainY=0
MainW=7680
MainH=4320
Debug=2

With Debug=2 you should see feedback of hax11 rewriting geometry in X11 messages to cover the entire monitor.

@rubin55
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rubin55 commented Jan 15, 2024 •
edited
Loading

Alright, it worked, I got Assassin's Creed Odyssey running on my Dell UP3218k at 8k, doing about 45 fps, everything at Ultra, anti-aliasing off (4090, 13900T).

I had to add the MaskOtherMonitors=1 option though, because it became confused about which screen to use.

I also noted (for other people that might hit this issue) that I could work-around the sometimes-occuring freeze at the warning screen, by going to the videos folder and creating a disabled folder there, and moving the en/ folder and the amd.bk2, blackscreen.bk2 and Ubisoftlogo.bk2 files into that disabled folder. This causes the game to skip all intros and in my case helped avoid a 50/50 chance freeze occuring at start.

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