<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Black or broken VT when loading i915.ko "late"" href="https://bugs.freedesktop.org/show_bug.cgi?id=107441#c12">Comment # 12</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Black or broken VT when loading i915.ko "late"" href="https://bugs.freedesktop.org/show_bug.cgi?id=107441">bug 107441</a> from <a class="email" href="mailto:glogow@fbihome.de" title="Jan-Marek Glogowski <glogow@fbihome.de>"> Jan-Marek Glogowski</a> <pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=107441#c11">comment #11</a>) > (In reply to Jan-Marek Glogowski from <a href="show_bug.cgi?id=107441#c9">comment #9</a>) > > So I applied the patch > > > > commit 011f22eb545a35f972036bb6a245c95c2e7e15a0 > > Author: Hans de Goede <<a href="mailto:j.w.r.degoede@gmail.com">j.w.r.degoede@gmail.com</a>> > > Date: Fri Apr 20 11:59:33 2018 +0200 > > > > drm/i915: Do NOT skip the first 4k of stolen memory for pre-allocated > > buffers v2 > > > > on top of my DRM backport and now the dmesg output is again > > > > [ 5.912030] [drm:intelfb_create [i915_bpo]] re-using BIOS fb > > [ 5.912121] [drm:intelfb_create [i915_bpo]] allocated 1366x768 fb: > > 0x00000000 > > > > instead of the broken > > > > [ 4.244504] [drm:intelfb_create [i915_bpo]] no BIOS fb, allocating a new > > one > > [ 4.244538] [drm:intelfb_create [i915_bpo]] allocated fb from stolen > > memory > > [ 4.246099] [drm:intelfb_create [i915_bpo]] allocated 1366x768 fb: > > 0x00040000 > > > > Is that what you expected? > > Yes. But I'm worrying about your earlier result with 4.18rc7 as that > includes the patch. So I've retested the HW. The patch works on the Fujitsu U757 with the Ubuntu 12.04 + kernel 4.4 + my 4.15 DRM backport. I'm not sure what's happening for 4.18 on the Acer n4640g HW. * It's working when booting with i915.ko in the initramfs * The monitor is blank, if booting with i915.ko just in the root fs $ grep "re-using BIOS fb" dmesg-4.18* dmesg-4.18_initramfs:[ 2.042702] [drm:intelfb_create [i915]] re-using BIOS fb dmesg-4.18_rootfs: [ 18.468958] [drm:intelfb_create [i915]] re-using BIOS fb To be more precise, the "blank" screen is a monitor with backlight switched on. I can switch to the VT with a plymouth running with the correct image, which I didn't check earlier. Now all of this might be a systemd or plymouth problem; but still in the initramfs case I have a splash on the correct VT from the beginning.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>