You are correct. Please look at Qiangli Q2.5 128x64 Output is White bars - #30 by marcmerlin
Basically you need to know a vendor who actually understands that chips matter and will guarantee the chip that will be mailed to you, before it is mailed
You can contact Hongren Su / Azerone / whatsapp number: +86 159 2059 2439
You can ask him what you need and he will tell you what you can do.
Normally you wouldn’t send money to a random company in China but I’ve worked with him for about 5 years, I can vouch for him