sad output names

sad output names

[Felix Miata]

Asus B250 LGA 1151 (Kaby Lake) Motherboard (4 total physical video outputs):
https://www.asus.com/us/Motherboards/PRIME-B250M-C-CSM/

G4600 HD Graphics 630 CPU

Server 1.20.0 (openSUSE Tumbleweed)

kernel 4.17.4

Xorg driver: modesetting

Xrandr		Actual Cable
Reports		Connectors
DP-1		DisplayPort
HDMI-1		----
HDMI-2		HDMI
HDMI-3		DVI
DP-2		VGA

Is there anything with kernel, xrandr, driver, server (or other?) that might be
changed to better associate the connector names to the actual connector types?
Is this a motherboard firmware shortcoming?
-- 
"Wisdom is supreme; therefore get wisdom. Whatever else you
get, get wisdom." Proverbs 4:7 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/
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Re: sad output names

[Felix Miata]

Felix Miata composed on 2018-07-25 03:37 (UTC-0400):

> Asus B250 LGA 1151 (Kaby Lake) Motherboard (4 total physical video outputs):
> https://www.asus.com/us/Motherboards/PRIME-B250M-C-CSM/

> G4600 HD Graphics 630 CPU

> Server 1.20.0 (openSUSE Tumbleweed)

> kernel 4.17.4

> Xorg driver: modesetting
> 
> Xrandr		Actual Cable
> Reports		Connectors
> DP-1		DisplayPort
> HDMI-1		----
> HDMI-2		HDMI
> HDMI-3		DVI
> DP-2		VGA

> Is there anything with kernel, xrandr, driver, server (or other?) that might be
> changed to better associate the connector names to the actual connector types?
> Is this a motherboard firmware shortcoming?

Meant to include this first try, in case it matters, but got sidetracked:
http://fm.no-ip.com/Tmp/Linux/Xorg/Igfx/xorg.0.log-intel-gfx-listpost-ab250connectors
-- 
"Wisdom is supreme; therefore get wisdom. Whatever else you
get, get wisdom." Proverbs 4:7 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/
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Re: sad output names

[Rodrigo Vivi]

On Wed, Jul 25, 2018 at 03:37:52AM -0400, Felix Miata wrote:
> Asus B250 LGA 1151 (Kaby Lake) Motherboard (4 total physical video outputs):
> https://www.asus.com/us/Motherboards/PRIME-B250M-C-CSM/
> 
> G4600 HD Graphics 630 CPU
> 
> Server 1.20.0 (openSUSE Tumbleweed)
> 
> kernel 4.17.4
> 
> Xorg driver: modesetting
> 
> Xrandr		Actual Cable
> Reports		Connectors
> DP-1		DisplayPort
> HDMI-1		----
> HDMI-2		HDMI
> HDMI-3		DVI
> DP-2		VGA

I understand your concern, but  as you can see there are adaptors involved
here and they are decided by manufactures. From the driver perspective the
protocol is the most important part, but that gets sometimes really bad for
the users, I know.

Honestly I don't know if there's a way to detect the presence of adapters
like this DP to VGA for instance. I don't think so.

Afaik on HDMI-DP with LSPCON we do some tweak on the names to avoid
showing a misleading information, but that's is the further we can go I'm afraid...

> 
> Is there anything with kernel, xrandr, driver, server (or other?) that might be
> changed to better associate the connector names to the actual connector types?
> Is this a motherboard firmware shortcoming?
> -- 
> "Wisdom is supreme; therefore get wisdom. Whatever else you
> get, get wisdom." Proverbs 4:7 (New Living Translation)
> 
>  Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
> 
> Felix Miata  ***  http://fm.no-ip.com/
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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Re: sad output names

[Felix Miata]

Rodrigo Vivi composed on 2018-07-25 09:20 (UTC-0700):

> On Wed, Jul 25, 2018 at 03:37:52AM -0400, Felix Miata wrote:

>> Asus B250 LGA 1151 (Kaby Lake) Motherboard (4 total physical video outputs):
>> https://www.asus.com/us/Motherboards/PRIME-B250M-C-CSM/

>> G4600 HD Graphics 630 CPU

>> Server 1.20.0 (openSUSE Tumbleweed)

>> kernel 4.17.4

>> Xorg driver: modesetting

>> Xrandr		Actual Cable
>> Reports		Connectors
>> DP-1		DisplayPort
>> HDMI-1		----
>> HDMI-2		HDMI
>> HDMI-3		DVI
>> DP-2		VGA

> I understand your concern, but  as you can see there are adaptors involved
> here and they are decided by manufactures. From the driver perspective the
> protocol is the most important part, but that gets sometimes really bad for
> the users, I know.

By "adaptors", do you mean logical adapters in motherboard firmware that maybe
an update could improve?

> Honestly I don't know if there's a way to detect the presence of adapters
> like this DP to VGA for instance. I don't think so.

> Afaik on HDMI-DP with LSPCON we do some tweak on the names to avoid
> showing a misleading information, but that's is the further we can go I'm afraid...

Thanks for the reply.

BTW, DP daisy chaining the same motherboard I get the following:

Screen 0: minimum 320 x 200, current 4480 x 1200, maximum 8192 x 8192
DP-1 disconnected primary (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
HDMI-3 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-1-8 connected 2560x1080+0+0 (normal left inverted right x axis y axis) 673mm
x 284mm
   2560x1080     60.00*+
   1920x1080     60.00    60.00    50.00    59.94    24.00    23.98
   1680x1050     59.95
   1280x1024     75.02    60.02
   1280x800      59.81
   1152x864      75.00
   1280x720      60.00    50.00    59.94  ...
DP-1-1 connected 1920x1200+2560+0 (normal left inverted right x axis y axis)
519mm x 324mm
   1920x1200     59.95*+
   1920x1080     60.00    59.94
   1680x1050     59.95
   1400x1050     59.98
   1280x1024     60.02
   1440x900      59.89
   1280x960      60.00
   1280x800      59.81
   1280x720      60.00    59.94  ...

That logic looks backwards to me. DP-1-8 is the screen in the middle of the
cable chain. :-p

>> Is there anything with kernel, xrandr, driver, server (or other?) that might be
>> changed to better associate the connector names to the actual connector types?
>> Is this a motherboard firmware shortcoming?-- 
"Wisdom is supreme; therefore get wisdom. Whatever else you
get, get wisdom." Proverbs 4:7 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/
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Re: sad output names

[Paulo Zanoni]

Em Qua, 2018-07-25 às 09:20 -0700, Rodrigo Vivi escreveu:
> On Wed, Jul 25, 2018 at 03:37:52AM -0400, Felix Miata wrote:
> > Asus B250 LGA 1151 (Kaby Lake) Motherboard (4 total physical video
> > outputs):
> > https://www.asus.com/us/Motherboards/PRIME-B250M-C-CSM/
> > 
> > G4600 HD Graphics 630 CPU
> > 
> > Server 1.20.0 (openSUSE Tumbleweed)
> > 
> > kernel 4.17.4
> > 
> > Xorg driver: modesetting
> > 
> > Xrandr		Actual Cable
> > Reports		Connectors
> > DP-1		DisplayPort
> > HDMI-1		----
> > HDMI-2		HDMI
> > HDMI-3		DVI
> > DP-2		VGA
> 
> I understand your concern, but  as you can see there are adaptors
> involved
> here and they are decided by manufactures. From the driver
> perspective the
> protocol is the most important part, but that gets sometimes really
> bad for
> the users, I know.
> 
> Honestly I don't know if there's a way to detect the presence of
> adapters
> like this DP to VGA for instance. I don't think so.
> 
> Afaik on HDMI-DP with LSPCON we do some tweak on the names to avoid
> showing a misleading information, but that's is the further we can go
> I'm afraid...
> 
> > 
> > Is there anything with kernel, xrandr, driver, server (or other?)
> > that might be
> > changed to better associate the connector names to the actual
> > connector types?
> > Is this a motherboard firmware shortcoming?

Keep in mind that due to adapters, the actual cable connected to a
certain port may change over time, and our Kernel connector names are
fixed.

The most user friendly thing apps can do is to read monitor information
(from EDID) and display that to the user. For example, I see my desktop
environment says I have "Acer Technologies 27"" and "Laptop" (and it
even displays which one is which). I don't even need to care if the
monitor is connected through HDMI or DP: all I have to know is what I
can see (the monitor itself).

> > -- 
> > "Wisdom is supreme; therefore get wisdom. Whatever else you
> > get, get wisdom." Proverbs 4:7 (New Living Translation)
> > 
> >  Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
> > 
> > Felix Miata  ***  http://fm.no-ip.com/
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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Re: sad output names

[Rodrigo Vivi]

On Wed, Jul 25, 2018 at 02:21:24PM -0400, Felix Miata wrote:
> Rodrigo Vivi composed on 2018-07-25 09:20 (UTC-0700):
> 
> > On Wed, Jul 25, 2018 at 03:37:52AM -0400, Felix Miata wrote:
> 
> >> Asus B250 LGA 1151 (Kaby Lake) Motherboard (4 total physical video outputs):
> >> https://www.asus.com/us/Motherboards/PRIME-B250M-C-CSM/
> 
> >> G4600 HD Graphics 630 CPU
> 
> >> Server 1.20.0 (openSUSE Tumbleweed)
> 
> >> kernel 4.17.4
> 
> >> Xorg driver: modesetting
> 
> >> Xrandr		Actual Cable
> >> Reports		Connectors
> >> DP-1		DisplayPort
> >> HDMI-1		----
> >> HDMI-2		HDMI
> >> HDMI-3		DVI
> >> DP-2		VGA
> 
> > I understand your concern, but  as you can see there are adaptors involved
> > here and they are decided by manufactures. From the driver perspective the
> > protocol is the most important part, but that gets sometimes really bad for
> > the users, I know.
> 
> By "adaptors", do you mean logical adapters in motherboard firmware that maybe
> an update could improve?

adapter... converter... something from the sw side we see as the protocol we support,
but it do whatever conversion needed to another format at the other end.

I don't understand how the update could solve this. But well... maybe that Paulo
mention to EDID and if the information is there. But with so many different
adapters out there from many different vendors I don't think it is worth trying
to guess an universal way.

> 
> > Honestly I don't know if there's a way to detect the presence of adapters
> > like this DP to VGA for instance. I don't think so.
> 
> > Afaik on HDMI-DP with LSPCON we do some tweak on the names to avoid
> > showing a misleading information, but that's is the further we can go I'm afraid...
> 
> Thanks for the reply.
> 
> BTW, DP daisy chaining the same motherboard I get the following:
> 
> Screen 0: minimum 320 x 200, current 4480 x 1200, maximum 8192 x 8192
> DP-1 disconnected primary (normal left inverted right x axis y axis)
> HDMI-1 disconnected (normal left inverted right x axis y axis)
> HDMI-2 disconnected (normal left inverted right x axis y axis)
> HDMI-3 disconnected (normal left inverted right x axis y axis)
> DP-2 disconnected (normal left inverted right x axis y axis)
> DP-1-8 connected 2560x1080+0+0 (normal left inverted right x axis y axis) 673mm
> x 284mm
>    2560x1080     60.00*+
>    1920x1080     60.00    60.00    50.00    59.94    24.00    23.98
>    1680x1050     59.95
>    1280x1024     75.02    60.02
>    1280x800      59.81
>    1152x864      75.00
>    1280x720      60.00    50.00    59.94  ...
> DP-1-1 connected 1920x1200+2560+0 (normal left inverted right x axis y axis)
> 519mm x 324mm
>    1920x1200     59.95*+
>    1920x1080     60.00    59.94
>    1680x1050     59.95
>    1400x1050     59.98
>    1280x1024     60.02
>    1440x900      59.89
>    1280x960      60.00
>    1280x800      59.81
>    1280x720      60.00    59.94  ...
> 
> That logic looks backwards to me. DP-1-8 is the screen in the middle of the
> cable chain. :-p

Yeap... seems a bit backwards to me to... But does it really matter?

> 
> >> Is there anything with kernel, xrandr, driver, server (or other?) that might be
> >> changed to better associate the connector names to the actual connector types?
> >> Is this a motherboard firmware shortcoming?-- 
> "Wisdom is supreme; therefore get wisdom. Whatever else you
> get, get wisdom." Proverbs 4:7 (New Living Translation)
> 
>  Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
> 
> Felix Miata  ***  http://fm.no-ip.com/
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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Re: sad output names

[Dhinakaran Pandiyan]

On Wed, 2018-07-25 at 14:21 -0400, Felix Miata wrote:
> Rodrigo Vivi composed on 2018-07-25 09:20 (UTC-0700):
> 
> > 
> > On Wed, Jul 25, 2018 at 03:37:52AM -0400, Felix Miata wrote:
> > 
> > > 
> > > Asus B250 LGA 1151 (Kaby Lake) Motherboard (4 total physical
> > > video outputs):
> > > https://www.asus.com/us/Motherboards/PRIME-B250M-C-CSM/
> > 
> > > 
> > > G4600 HD Graphics 630 CPU
> > 
> > > 
> > > Server 1.20.0 (openSUSE Tumbleweed)
> > 
> > > 
> > > kernel 4.17.4
> > 
> > > 
> > > Xorg driver: modesetting
> > 
> > > 
> > > Xrandr		Actual Cable
> > > Reports		Connectors
> > > DP-1		DisplayPort
> > > HDMI-1		----
> > > HDMI-2		HDMI
> > > HDMI-3		DVI
> > > DP-2		VGA
> > 
> > I understand your concern, but  as you can see there are adaptors
> > involved
> > here and they are decided by manufactures. From the driver
> > perspective the
> > protocol is the most important part, but that gets sometimes really
> > bad for
> > the users, I know.
> By "adaptors", do you mean logical adapters in motherboard firmware
> that maybe
> an update could improve?
> 
> > 
> > Honestly I don't know if there's a way to detect the presence of
> > adapters
> > like this DP to VGA for instance. I don't think so.
> > 
> > Afaik on HDMI-DP with LSPCON we do some tweak on the names to avoid
> > showing a misleading information, but that's is the further we can
> > go I'm afraid...
> Thanks for the reply.
> 
> BTW, DP daisy chaining the same motherboard I get the following:
> 
> Screen 0: minimum 320 x 200, current 4480 x 1200, maximum 8192 x 8192
> DP-1 disconnected primary (normal left inverted right x axis y axis)
> HDMI-1 disconnected (normal left inverted right x axis y axis)
> HDMI-2 disconnected (normal left inverted right x axis y axis)
> HDMI-3 disconnected (normal left inverted right x axis y axis)
> DP-2 disconnected (normal left inverted right x axis y axis)
> DP-1-8 connected 2560x1080+0+0 (normal left inverted right x axis y
> axis) 673mm
> x 284mm
>    2560x1080     60.00*+
>    1920x1080     60.00    60.00    50.00    59.94    24.00    23.98
>    1680x1050     59.95
>    1280x1024     75.02    60.02
>    1280x800      59.81
>    1152x864      75.00
>    1280x720      60.00    50.00    59.94  ...
> DP-1-1 connected 1920x1200+2560+0 (normal left inverted right x axis
> y axis)
> 519mm x 324mm
>    1920x1200     59.95*+
>    1920x1080     60.00    59.94
>    1680x1050     59.95
>    1400x1050     59.98
>    1280x1024     60.02
>    1440x900      59.89
>    1280x960      60.00
>    1280x800      59.81
>    1280x720      60.00    59.94  ...
> 
> That logic looks backwards to me. DP-1-8 is the screen in the middle
> of the
> cable chain. :-p

"8" happens to be the logical port number. Logical because the port is
internal to a multi-function DP device (it contains both a branch and a
sink). DP spec says logical port numbers start from 8.


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