http://bugzilla.opensuse.org/show_bug.cgi?id=1188954 http://bugzilla.opensuse.org/show_bug.cgi?id=1188954#c24 Felix Miata <mrmazda@earthlink.net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |sndirsch@suse.com Flags| |needinfo?(sndirsch@suse.com | |) --- Comment #24 from Felix Miata <mrmazda@earthlink.net> --- Created attachment 862373 --> http://bugzilla.opensuse.org/attachment.cgi?id=862373&action=edit systemd-analyze blame This 475 line attachment is from today's fresh installation. I spent all day yesterday and the first hours of today beating my head against this wall with this PC's previous 15.4, an upgrade from 15.3 many moons ago then ending with kernel-default-5.14.21-150400.22.1 as latest kernel, then three separate attempts to upgrade from 15.3 again, before deciding on a fresh start. (In reply to Stefan Dirsch from comment #7)
Ok. If it fails only during initial X startup, this looks like a timing issue, i.e. kernel module is not being initialized in time before X gets started. Maybe amdgpu kernel module is missing from initrd, but radeon is (since it's the default driver), i.e. adding amdgpu to initrd may help (if it's really missing).
On 15.4 post-kernel-default-5.14.21-150400.22.1, the Kaveri [Radeon R7 Graphics] chip-ID: 1002:130f PC is stubbornly refusing to load a kernel graphics module before X tries its first start on each boot. XDM won't auto restart, so I get either solid black screen, or a tty1 login prompt, depending on what linu line parameters are used, and/or which display drivers are configured, and/or whether I have validly reconfigured dracut for graphics module loading, and/or I've blacklisting of radeon in /etc/modulesload.d/. # systemd-analyze critical-chain ... graphical.target @4.227s ������multi-user.target @4.226s ������kbdsettings.service @2.171s +2.055s ������basic.target @2.154s ������sockets.target @2.154s ������telnet.socket @2.154s ������sysinit.target @2.148s ������systemd-backlight@backlight:acpi_video0.service @3.476s +7ms ������system-systemd\x2dbacklight.slice @3.271s ������system.slice ������-.slice Questions: 1-How do I guarantee earliest possible loading of whatever kernel graphics module is needed or wanted, whether radeon or amdgpu? Is force_drivers+=" amdgpu " in a file of any name in /etc/dracut.conf.d/ sufficient to ensure loading amdgpu comes first? Solely? Is omit_drivers+=" radeon " needed as well? 2-Does initrd by default include whatever blacklisting is contained in /etc/modprobe.d/? Is "blacklist radeon" in any file in this directory sufficient? Do filenames here need to end in .conf to be utilized? 3-Could a delay of first X start on custom want or after existence of /dev/dri/card0: in /usr/lib/systemd/system/display-manager.service work? Shouldn't that already be happening? Googling early graphics loading has been getting me nothing but *NVidia* and/or Youtubes. :( 15.3 & TW are behaving perfectly using only amdgpu, without any heroics, on same PC. -- You are receiving this mail because: You are on the CC list for the bug.