Issue #538 has been updated by Brian L.
Patrick Rudolph wrote in #note-1: > Looking at the schematics there's no way the LVDS can be disconnected. > However it might be possible that the display isn't powered, though it's > unclear why coreboot would cause this effect. Circling back to this, the issue is fixed when using the vendor blob for video bios. So i guess this is a libgfxinit issue then? I've tested Skulls prebuilt images with no vendor blob and have the issue on 1.0.8 and 1.1.0. I am not sure if this ever worked properly for libgfxinit or not. Googling shows many users using x230 on dock and not reporting issues, so its unclear if it worked at some point, or if they were all using video blobs, or if me having a non-standard screen panel made the issue more easily debugable (maybe stock panels fallback to proper resolution where as my panel had a clearly different one, as noted in my post above). ---------------------------------------- Bug #538: [Soft Brick] x230 Dock Causes Internal Display to "Permanently" Malfunction https://ticket.coreboot.org/issues/538#change-1833 * Author: Brian L * Status: New * Priority: High * Target version: none * Start date: 2024-05-14 * Affected hardware: Lenovo x230 ---------------------------------------- Environment: - Lenovo x230 - Stock screen replaced with Pixel Qi (not sure if relevant) (plug & play LVDS) - Coreboot using Heads (coreboot + linuxboot) - Official lenovo docking station connected to external monitor via DisplayPort Bug Trigger: Using Heads/coreboot fine for years with my Pixel Qi screen modded x230. I then bought a Lenovo docking station. Booted up, everything worked fine. Disconnected from dock, booted up, and there was no bios screen. Screen did not turn on until taken over by Linux Kernel. Once in userspace, wayland could no longer identify the monitor as a Pixel Qi or its proper resolution. EDID is blank. Booting with docking station allows bios to show on external display. Restarting did *not* fix the issue, reflashing heads did *not* fix the issue, flashing skulls (coreboot + seabios) did *not* fix the issue. Flashing stock bios *did fix* the issue. I can now see BIOS screen and get proper EDID in userspace whether on the dock or not. *However* reflashing coreboot again, even coming from stock bios working state, and I immediately now no longer get a BIOS screen or EDID, even without ever introducing the dock again. Essentially now bricked with anything but stock bios. -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: https://ticket.coreboot.org/my/account _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org
