Issue #596 has been reported by Walter Sonius. ---------------------------------------- Bug #596: Allocate resources from top down AND extend PCIe resource window above 4G together breaks libgfxinit bootscreen https://ticket.coreboot.org/issues/596
* Author: Walter Sonius * Status: New * Priority: Normal * Target version: none * Start date: 2025-05-19 * Affected versions: 25.03 ---------------------------------------- When enabling both `Allocate resources from top down` [enabled by default and fixed recently](https://review.coreboot.org/c/coreboot/+/87504) and `Extend resource window for PCIe devices above 4G` libgfxinit will break during bootscreen and other PCIe issues like failing wifi drivers may occur. Tested coreboot-25.03-519-ga2010cf5eeea (a2010cf5eeea6ad4a154cfb13760092f0865af3f) with Dell_Optiplex_5040_sff (i3-6100) and earlier Coreboot 25.03-467-gf0ad05b57ebe with Lenovo [x201](https://ticket.coreboot.org/issues/548#note-10) with MrChromeBox EDK2 2502. Can/should these 2 options be used together, if I understand correctly when using a modern efi GOP dGPU together with resizeable-bar all 3 options(+Support PCIe Resizable BARs) need to be enabled? Only using `Allocate resources from top down` or `Extend resource window for PCIe devices above 4G` does not lead up to this issue. ---Files-------------------------------- cb-log-dell-5040-sff-notd-a4b-ok-bootscreen.txt (41 KB) cb-log-dell-5040-sff-td-noa4b-ok-bootscreen.txt (41 KB) cb-log-dell-5040-sff-td-a4b-no-bootscreen.txt (40.5 KB) -- 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
