[09:15] Hi, on bionic-hwe fully updated, i5-4440 CPU/GPU, and this minimal xorg.conf: Section "Monitor" Identifier "HDMI-1" Option "Primary" "true" EndSection [09:15] Xorg ...starts but isn't displayed on screen! vt7 shows a small "bpfilter" message in text mode, and `export DISPLAY=:0; xrandr` works, and lightdm is supposed to be running, but it's not displayed [09:15] Related Xorg.0.log: https://termbin.com/95di [09:16] [ 982.100] (EE) modeset(0): failed to set mode: Invalid argument [09:16] I believe this is related to "Primary", as if I remove it, it then works fine [09:18] As a workaround, I removed "primary" from my xorg.conf (the non-testing one is longer) and everything works fine, and I'm setting primary with xrandr after login [16:31] alkisg: if you set "primary" in corg.conf, maybe you need to also have a second monitor section? [16:31] *xorg.conf [16:32] https://wiki.archlinux.org/index.php/Multihead#Configuration_using_xorg.conf [16:48] tomreyn: in my initial test, I had one, and it triggered the error; then I started removing lines until I minimized the problem to the lines I mentioned above [16:49] Here's my original one: https://termbin.com/qjp6 [16:49] So I played with removing lines, and I saw that it was the "primary" line that breaks xorg [16:49] This used to work in 16.04; I don't know at which point it broke because for a couple of years I didn't use a xorg.conf [17:50] hmm, no idea then. your log shows that those options are parsed, and the parser itself seems to be happy with them. [17:50] just the modesetting is not. [18:02] I do think it's a xorg regression as it was working previously... but I've no idea in which subsystem. I've had intel clients in the past that didn't show a login screen, while VNC was working (!), and updating kernel/xorg fixed them, so I'm guessing it's specific to intel or modesetting... [18:03] I haven't seen that symptom in non-intel cards (where xorg "works" but isn't shown) [18:14] I can push a new hwe xserver to a ppa tomorrow [18:15] mesa is being prepared already [18:18] tjaalton: ah thank you, I'll stick around, please ping me if it's available for testing [18:19] if latest 1.20-branch doesn't fix it, then perhaps needs to be upstreamed [18:19] Gotcha [18:20] and eoan has a git snapshot of it [18:20] Maybe I could test with the 19.10 live cd too, by putting an init break, and creating a xorg.conf before continuing... [18:20] I'll do that tomorrow morning [18:20] you can restart the session too [18:20] from a terminal [18:20] Ah right [18:20] Easier