On 29.12.2019 22:37, Tomasz Melcer wrote:
I've found a question describing a similar problem at [1], suggesting that this is specific to x86 and doesn't show up on amd64. I'll try that later. [1] http://forums.debian.net/viewtopic.php?f=17&t=143870
…and it seems indeed that this is true. The same exact installation procedure, but with amd64 medium, resulted in correctly working graphics.