I use a Trezor with Electrum and I have the Trezor plugged in before Electrum starts. I've never run into any issues with it before, and Electrum definitely works better than the MyTrezor site. If you're having issues with the latest Electrum release try using the 2.0 version as suggested because it seems to fix problems that users have with later releases.
Thanks for the report. I looked at 2.0 and saw that it doesn't support the HW.1. But after I re-intalled 2.3.2 it all started working anyway.
So it worked for you to create a hardware wallet?
I'm curious cause I have the same problem (HW.1 Dongle and no programming skills)
I'm actually on Version 2.2 and that didn't work.
1. I backed up my wallet(s) and contacts file.
2. Un-installed Electrum and removed all directories associated with Electrum.
3. Re-installed Electrum.
4. Set up the HW.1 wallet as the *very first* wallet in the new configuration.
5. Restored all the other non-HW wallets.
All is good now!
It turns out I wasn't quite right. Following the steps above will get Electrum to reliably tell you that the HW.1 isn't present if it's not plugged in. But if you have the HW.1 plugged in then it still doesn't work. If I look at the process table I show the Electrum executable still running but there's nothing on the screen. It's as though the process is hung and needs to be killed in the process manager.
The HW.1 I'm using has already been initialized using the default app. I'll set the key back to it's default state and see what happens.
UPDATE: I've attempted installing using a un-initialized HW.1 as well as one that has been initialized. I've tried all Electrum versions from 2.0.3 up to 2.3.2 without success. All versions show that Electrum is running but there is nothing on the screen.
Oh well... Maybe someday someone can get it working and enlighten us.