lmancino

RADEON PRO WX 7100 at 10bpc & BENQ SW271

Discussion created by lmancino on Mar 2, 2019
Latest reply on May 9, 2019 by lmancino

I am not able to connect a BENQ SW271 (UHD 3840x2160) keeping 10bpc of Color Depth at 60hz and RGB 4:4:4 Full. In the Screen Control Panel of the Driver the resolution is forced at 8bpc. I can obtain 10bpc only at 30hz (not 50, or 59).

I verified the number of colors managed with the usual ramp.psd file, open in Photoshop, obtaining the confirmation of the resolutions showed in the driver panel.

 

The display is connected with a DP 1.4 cable (Purelink PI5010-020 certified for 8K at 60hz or 4K at 120hz with a maximum band of 32.4 Gbps).

 

In the Advanced Panel of Driver the 10 bit check box is flagged

 

The previous monitor was an ASUS PA249Q (FHD 1920x1200) working at 10bpc/60hz and full RGB 4:4:4.

 

I opened a ticket with BENQ Support (CETS#2019030131000962).

 

EDID Obtained with Monitor Info View

00000000  00 FF FF FF FF FF FF 00 09 D1 5F 7F 45 54 00 00    .........._ET..
00000010  1D 1C 01 04 B5 3C 22 78 3E 22 15 AC 51 35 B6 26    .....<"x>"..Q5.&
00000020  0E 50 54 A5 6B 80 D1 C0 81 C0 81 00 81 80 A9 C0    .PT.k...........
00000030  B3 00 01 01 01 01 4D D0 00 A0 F0 70 3E 80 30 20    ......M....p>.0
00000040  35 00 55 50 21 00 00 1A 00 00 00 FF 00 4D 37 4A    5.UP!........M7J
00000050  30 31 36 37 38 53 4C 30 0A 20 00 00 00 FD 00 18    01678SL0. ......
00000060  4B 1B 8C 3C 00 0A 20 20 20 20 20 20 00 00 00 FC    K..<..      ....
00000070  00 42 65 6E 51 20 53 57 32 37 31 0A 20 20 01 89    .BenQ SW271.  ..

 

Other component of setup

  • Motherboard ASUS Prime X370-PRO
  • Bios 4207
  • CPU Ryzen 1700
  • Power Supply Enermax Platimax 750 Watt
  • RAM 32 GB (2x16)
  • Windows 10 pro 64 bit 1809

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