[USB-Blaster] Detected as "USB-Blaster Variant" on SLES12 – Causing Detection Issues

[SeongLim]

Hi,

I'm facing an issue where the USB-Blaster is automatically detected as USB-Blaster [Variant] in a Linux environment (SLES12), instead of the standard USB-Blaster.

Because of this, my system is unable to detect the testcard, and scanning fails completely.

Has anyone encountered this issue before? Is there a known fix or driver workaround for this behavior?

Current OS: SUSE SLES12 SP5
Kernel Version: 4.12.14-122.255-default
Issue: USB-Blaster is consistently detected as USB-Blaster [Variant], causing device scan failures.

Previous OS: SUSE SLES12 SP5
Kernel Version: 4.12.14-122.201-default
Status: USB-Blaster was detected correctly and worked without issues.

[WZ2]

Hi there,

Previously, I have not seen any cases where the system is incompatible with the programmer or JTAG driver.

I'm not sure if reinstalling the programmer or trying a newer version might help resolve the issue.

Best regards,

WZ

[SeongLim]

Hi,

Could you please share the BKM for reinstalling the USB-Blaster driver?

Normally, I just source the path, and it works directly. However, I’ve tried several versions and none of them are working. Interestingly, if I downgrade the kernel, everything works fine. 

Quartus version 19.1.0.670 -
/nfs/site/disks/hdk_cad_root_2/cad/x86-64_linux26/altera/quartus_prime/19.1.0.670/quartus/bin

regards,

SL

[WZ2]

Hi there,

If downgrading the kernel resolves the issue, it's likely that there's a conflict between the kernel and jtagd, although I'm not exactly sure what causes it.

My suggestion is to try downloading a newer version of the Quartus Programmer to update the JTAG driver.

After downloading and installing it, you can reboot the system to apply the new driver.

Before using it, you may want to run killall jtagd to stop any existing instances, then go to the newly installed directory and run ./jtagconfig to check if the device is detected correctly.

https://cdrdv2.intel.com/v1/dl/getContent/819137/819162?filename=QuartusProProgrammerSetup-24.1.0.115-linux.run

Best regards,

WZ

[SeongLim]

Hi,

I’ve tried the BKM you shared, but unfortunately, it didn’t resolve the USB-Blaster Variant issue.
Even with the latest Quartus Pro and updated driver, the problem still persists.

Please let me know if there’s anything else I can try.

regards,

SL

[Farabi]

Hello,

Does it work at Windows PC? Just to make sure the USB Blaster II hardware is working.

regards,

Farabi