make no error,but run fltest "device no connect"

[lvzusheng]

run "ls /dev" can find "fl2000-3"
but run"sudo ./fltest " " fl2000 device not connected?"
and No screen signal

[dan1lo]

What is your linux? Mine is ubuntu 19.6 and don' works too

[sarlacpit]

I have also had the same issue in Ubuntu18.04 - I've not found a way around it. The USB device mounts ok and I can see the files. The VGA part just doesn't work - Struggling to figure out why so far... Here is some system info and a dmesg.

dmesg

[79972.768783] usb 4-6: new SuperSpeed USB device number 7 using xhci_hcd
[79972.793095] usb 4-6: New USB device found, idVendor=1d5c, idProduct=2000
[79972.793099] usb 4-6: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[79972.794192] usb-storage 4-6:1.3: USB Mass Storage device detected
[79972.794371] scsi host5: usb-storage 4-6:1.3
[79972.811830] audit: type=1400 audit(1569326739.671:145): apparmor="DENIED" operation="open" profile="snap.brave.brave" name="/sys/devices/pci0000:00/0000:00:14.0/usb4/4-6/busnum" pid=7023 comm="TaskSchedulerFo" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[79972.811846] audit: type=1400 audit(1569326739.671:146): apparmor="DENIED" operation="open" profile="snap.brave.brave" name="/sys/devices/pci0000:00/0000:00:14.0/usb4/4-6/devnum" pid=7023 comm="TaskSchedulerFo" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[79973.813722] scsi 5:0:0:0: Direct-Access                               A001 PQ: 0 ANSI: 4
[79973.814105] sd 5:0:0:0: Attached scsi generic sg2 type 0
[79973.814237] sd 5:0:0:0: [sdb] 2047 4096-byte logical blocks: (8.38 MB/8.00 MiB)
[79973.814373] sd 5:0:0:0: [sdb] Write Protect is off
[79973.814375] sd 5:0:0:0: [sdb] Mode Sense: 03 00 00 00
[79973.814504] sd 5:0:0:0: [sdb] No Caching mode page found
[79973.814509] sd 5:0:0:0: [sdb] Assuming drive cache: write through
[79973.817499]  sdb:

lspci

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:16.3 Serial controller: Intel Corporation 8 Series/C220 Series Chipset Family KT Controller (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-LM (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d4)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d4)
00:1c.4 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #5 (rev d4)
00:1c.5 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #6 (rev d4)
00:1c.6 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #7 (rev d4)
00:1c.7 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #8 (rev d4)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM87 Express LPC Controller (rev 04)
00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mars XTX [Radeon HD 8790M]
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)
0e:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01)

lsusb

Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0c45:64d0 Microdia 
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 007: ID 1d5c:2000  
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 8087:07da Intel Corp. 
Bus 003 Device 021: ID 413c:2105 Dell Computer Corp. Model L100 Keyboard
Bus 003 Device 020: ID 046d:c52e Logitech, Inc. MK260 Wireless Combo Receiver
Bus 003 Device 019: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 003 Device 018: ID 0424:2524 Standard Microsystems Corp. USB MultiSwitch Hub
Bus 003 Device 017: ID 04b4:120d Cypress Semiconductor Corp. 
Bus 003 Device 016: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[ConsciousCode]

In main.c, it has the device path hard-coded to /dev/fl2000-0, but the driver created /dev/fl2000-1 for me. Easy fix is to just change it to the correct name, "nicer" fix would be to search for the glob /dev/fl2000-*. When I run fltest with this edit, it runs with no error, though it doesn't seem to be generating an HDMI signal.

[diegodlpereira]

@ConsciousCode thanks - your proposed fix worked like a charm, nice catch

[ConstantineAlexandre]

In main.c, it has the device path hard-coded to /dev/fl2000-0, but the driver created /dev/fl2000-1 for me. Easy fix is to just change it to the correct name, "nicer" fix would be to search for the glob /dev/fl2000-*. When I run fltest with this edit, it runs with no error, though it doesn't seem to be generating an HDMI signal.

not work for me

[ConstantineAlexandre]

@ConsciousCode thanks - your proposed fix worked like a charm, nice catch

any suggests?

[lvzusheng]

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