Bug 506823

Created attachment 183099 [details]
xorg.conf

Good morning!
I bought a vintage 32" DELL UP3214Q monitor Amd Radeon R9 285 Video supports version 1.2The system has two monitors 24" - 1920x1080_60Hz and 32" - 3840x2160_30Hz or _60Hz if the monitor is connected via DisplayPort ver. 1.2 The 32" monitor can be switched to normal DP1.0 or DP1 mode.2. In DP1.2 mode, the 32" monitor can be set to 3840x2160_60Hz. It works fine in Windows. But not in FreeBSD 14.2.

# pciconf -lcv
...
vgapci0@pci0:11:0:0:    class=0x030000 rev=0x00 hdr=0x00 vendor=0x1002 device=0x6939 subvendor=0x1043 subdevice=0x0486
    vendor     = 'Advanced Micro Devices, Inc. [AMD/ATI]'
    device     = 'Tonga PRO [Radeon R9 285/380]'
    class      = display
    subclass   = VGA
    cap 09[48] = vendor (length 8)
    cap 01[50] = powerspec 3  supports D0 D1 D2 D3  current D0
    cap 10[58] = PCI-Express 2 legacy endpoint max data 256(256) RO NS
                 max read 512
                 link x16(x16) speed 2.5(8.0) ASPM L1(L0s/L1)
    cap 05[a0] = MSI supports 1 message, 64 bit enabled with 1 message
    ecap 000b[100] = Vendor [1] ID 0001 Rev 1 Length 16
    ecap 0001[150] = AER 2 0 fatal 1 non-fatal 1 corrected
    ecap 0015[200] = Resizable BAR 1
    ecap 0019[270] = PCIe Sec 1 lane errors 0xfffe
    ecap 000f[2b0] = ATS 1
    ecap 0013[2c0] = Page Page Request 1
    ecap 001b[2d0] = Process Address Space ID 1
    ecap 000e[328] = ARI 1

 Set DP1.0: normally, there are two monitors in maximum modes. The system defines two DVI-D-0 and DisplayPort-0 inputs.
# xrandr -q
Screen 0: minimum 320 x 200, current 5760 x 2160, maximum 16384 x 16384
DVI-D-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm
   1920x1080     60.00*+  71.91    50.00    59.94
   1680x1050     59.88
   1600x900      60.00
   1280x1024     60.02
   1440x900      59.90
   1280x800      59.91
   1280x720      60.00    50.00    59.94
   1024x768      70.07    60.00
   800x600       72.19    60.32    56.25
   720x576       50.00
   720x480       60.00    59.94
   640x480       72.81    66.67    60.00    59.94
   720x400       70.08
DisplayPort-0 connected 3840x2160+1920+0 (normal left inverted right x axis y axis) 698mm x 392mm
   3840x2160     30.00*+
   1920x1200     59.88
   1920x1080     60.00
   1600x1200     60.00
   1680x1050     59.95
   1280x1024     75.02    60.02
   1280x800      59.81
   1152x864      75.00
   1024x768      75.03    60.00
   800x600       75.00    60.32
   640x480       75.00    59.94
   720x400       70.08
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 disconnected (normal left inverted right x axis y axis)

Set DP1.2 :
Code:

# xrandr -q
Screen 0: minimum 320 x 200, current 5760 x 2160, maximum 16384 x 16384
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm
   1920x1080     60.00*+  71.91    50.00    59.94
   1680x1050     59.88
   1600x900      60.00
   1280x1024     60.02
   1440x900      59.90
   1280x800      59.91
   1280x720      60.00    50.00    59.94
   1024x768      70.07    60.00
   800x600       72.19    60.32    56.25
   720x576       50.00
   720x480       60.00    59.94
   640x480       72.81    66.67    60.00    59.94
   720x400       70.08
DVI-D-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 connected 1920x2160+3840+0 (normal left inverted right x axis y axis) 698mm x 392mm
   1920x2160     59.99*+
   1920x1080     59.99
DisplayPort-2 connected 1920x2160+1920+0 (normal left inverted right x axis y axis) 698mm x 392mm
   1920x2160     59.99*+
   1920x1200     59.88
   1920x1080     60.00
   1600x1200     60.00
   1680x1050     59.95
   1280x1024     75.02    60.02
   1280x800      59.81
   1152x864      75.00
   1024x768      75.03    60.00
   800x600       75.00    60.32
   640x480       75.00    59.94
   720x400       70.08

And my system normal work if M32" set to DP1.0 for exept 60Hz only 30Hz :(. This small truble is nervus :).
I changed xorg.conf in different ways until I settled on the configuration of xorg.conf attached in the attachment. The image file and the current monitor configuration are also attached there.FreeBSD believes that the M32 is two monitors each at 1920x2160 and indeed they "work together" as one at 3840x2160 and 60Hz.DE XFCE4 and Openbox start normally, as does sddm. KDE - plasmashell is not displayed. Software: Drivers (all needed) and any drm/mesa have been installed and updated to the latest version as of the date of publication of this post. Any needent options added to rc.conf, loader.conf and other places. 

% kinfo
QKqueueFileSystemWatcherEngine::addPaths: open: No such file or directory
Operating System: FreeBSD 14.3
KDE Plasma Version: 6.4.1
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1
Kernel Version: 14.3-RELEASE (64-bit)
Graphics Platform: X11
Memory: 31.9 GiB of usable RAM
Graphics Processor: AMD Radeon RX 6650 XT