Since I got this CVS-5400 MST HUB I have been having a problem with my ASUS VE248 monitors going black and then not coming back on. I do remote support and the screens with black out using the CVS-5400 MST and once the are out not even pushing the button will bring them back on. When the monitors are plugged into my cards directly they are fine. I am running the latest AMD drivers. They are connected via DVI to Display port cables from Monoprice since HDMI has a display refresh limitation.

Any ideas on if this is a known defect or if there is an update for the firmware of the MST hub?

I have seen this kind of issue with Accel MST hubs.

Operating System
Windows 10 Pro 64-bit
CPU
AMD FX-9590 19 °C
Vishera 32nm Technology
RAM
16.0GB Dual-Channel DDR3 @ 668MHz (11-11-11-28)
Motherboard
ASUSTeK COMPUTER INC. CROSSHAIR V FORMULA-Z (Socket 942) 32 °C
Graphics
VE248 (1920×1080@60Hz)
VE248 (1920×1080@60Hz)
VE248 (1920×1080@60Hz)
4096MB ATI AMD Radeon R9 200 Series (XFX Pine Group) 32 °C
4096MB ATI AMD Radeon R9 200 Series (XFX Pine Group) 32 °C
4096MB ATI AMD Radeon R9 200 Series (XFX Pine Group) 32 °C
CrossFire Disabled
Storage
1863GB Seagate ST2000DX001-1NS164 (SATA) 32 °C
465GB Seagate ST500LM012 HN-M500MBB (SATA) 29 °C
232GB Samsung SSD 850 EVO 250GB (SSD) 31 °C
232GB Samsung SSD 850 EVO 250GB (SSD) 31 °C
Optical Drives
No optical disk drives detected
Audio
AMD High Definition Audio Device

Graphics
Monitor 1
Name VE248 on AMD Radeon R9 200 Series
Current Resolution 1920×1080 pixels
Work Resolution 1920×1040 pixels
State Enabled, Output devices support, Unsafe
Multiple displays Extended, Secondary, Enabled
Monitor Width 1920
Monitor Height 1080
Monitor BPP 32 bits per pixel
Monitor Frequency 60 Hz
Device \\.\DISPLAY1\Monitor0
Monitor 2
Name VE248 on AMD Radeon R9 200 Series
Current Resolution 1920×1080 pixels
Work Resolution 1920×1040 pixels
State Enabled, Unsafe
Multiple displays Extended, Primary, Enabled
Monitor Width 1920
Monitor Height 1080
Monitor BPP 32 bits per pixel
Monitor Frequency 60 Hz
Device \\.\DISPLAY2\Monitor0
Monitor 3
Name VE248 on AMD Radeon R9 200 Series
Current Resolution 1920×1080 pixels
Work Resolution 1920×1040 pixels
State Enabled, Unsafe
Multiple displays Extended, Secondary, Enabled
Monitor Width 1920
Monitor Height 1080
Monitor BPP 32 bits per pixel
Monitor Frequency 60 Hz
Device \\.\DISPLAY3\Monitor0
ATI AMD Radeon R9 200 Series
Manufacturer ATI
Model AMD Radeon R9 200 Series
Device ID 1002-67B0
Subvendor XFX Pine Group (1682)
Current Performance Level Level 0
Current Performance Level Level 0
Current Performance Level Level 0
GPU Clock 1000.0 MHz
Temperature 32 °C
Crossfire Disabled
Bios Core Clock 300.00
Bios Mem Clock 150.00
Driver version 16.300.2311.0
BIOS Version 113-GRENADA_XT_C671_D5_8GB_HY_W83
Memory Type GDDR5
Memory 4096 MB
Bandwidth 320.0 GB/s
Count of performance levels : 2
Level 1 – “Perf Level 0”
GPU Clock 300 MHz
Shader Clock 150 MHz
Level 2 – “Perf Level 1”
GPU Clock 1000 MHz
Shader Clock 1250 MHz
Count of performance levels : 1
Level 1 – “Perf Level 0”
Count of performance levels : 1
Level 1 – “Perf Level 0”
ATI AMD Radeon R9 200 Series
Manufacturer ATI
Model AMD Radeon R9 200 Series
Device ID 1002-67B0
Subvendor XFX Pine Group (1682)
Current Performance Level Level 0
Current Performance Level Level 0
Current Performance Level Level 0
GPU Clock 1000.0 MHz
Temperature 32 °C
Crossfire Disabled
Driver version 16.300.2311.0
Memory Type GDDR5
Memory 4096 MB
Bandwidth 320.0 GB/s
Count of performance levels : 2
Level 1 – “Perf Level 0”
GPU Clock 300 MHz
Shader Clock 150 MHz
Level 2 – “Perf Level 1”
GPU Clock 1000 MHz
Shader Clock 1250 MHz
Count of performance levels : 1
Level 1 – “Perf Level 0”
Count of performance levels : 1
Level 1 – “Perf Level 0”
ATI AMD Radeon R9 200 Series
Manufacturer ATI
Model AMD Radeon R9 200 Series
Device ID 1002-67B0
Subvendor XFX Pine Group (1682)
Current Performance Level Level 0
Current Performance Level Level 0
Current Performance Level Level 0
GPU Clock 1000.0 MHz
Temperature 32 °C
Crossfire Disabled
Driver version 16.300.2311.0
BIOS Version 113-GRENADA_XT_C671_D5_8GB_HY_W83
Memory Type GDDR5
Memory 4096 MB
Bandwidth 320.0 GB/s
Count of performance levels : 2
Level 1 – “Perf Level 0”
GPU Clock 300 MHz
Shader Clock 150 MHz
Level 2 – “Perf Level 1”
GPU Clock 1000 MHz
Shader Clock 1250 MHz
Count of performance levels : 1
Level 1 – “Perf Level 0”
Count of performance levels : 1
Level 1 – “Perf Level 0”