On 18/03/2026 15:47, Dmitry Baryshkov wrote:
On Tue, Mar 17, 2026 at 11:12:35PM +0100, David Heidelberg via B4 Relay wrote:
From: Petr Hodina <[email protected]>
Currently the panel driver for tianma is broken.
Disable MDSS to prevent DRM taking over the framebuffer.
I'd still hope that somebody can get it to work. I'd start by using
prepare_prev_first. Sumit reported the panel as working in 2020 and I
have no doubts that it was the case. Another option migt be something
related to the dispcc (see my [1]).
Sadly, the prepare_prev_first didn't solve the issue. The framebuffer -> MDSS
takover happens, but at greetd (login) loading screen goes black and never restores.
Will need more work.
David>
[1]
https://lore.kernel.org/linux-arm-msm/[email protected]/
