Hi, Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> writes: > Hi, > > On Fri, 17 Dec 2021 at 15:58, Felipe Balbi <balbi@xxxxxxxxxx> wrote: >> >> From: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxx> >> >> Hi folks, >> >> I'm trying to enable the framebuffer on Microsoft Surface Duo. Looking >> through some internal docs, it came to my attention that the bootloader >> will fill up the framebuffer address and size to a memory node names >> splash_region. Adding the node, I can see the address of the >> framebuffer. Creating the relevant framebuffer device using >> simple-framebuffer, I can't see it working. Tried dd if=/dev/urandom >> of=/dev/fb0 and fb-test. None of which manage to get rid of what's >> already on the screen, put there by the bootloader (platform Logo). >> >> Wondering if any of you have seen a behavior such as this and how did >> you manage to get framebuffer working on SM8150 (I see at least Sony >> Xperia has the node). > > What issues do you have with the DRM_MSM/DPU1 driver? I think it supports 8150. I haven't tried using it. I'll give it a shot next week. -- balbi