On Wednesday, 3 April 2024 19:29:11 BST Markus Gustafsson wrote: > Hi, > > I'm having a problem I'm not quite sure how to tackle: every other startup > or so results in a black screen. Usually nothing gets printed (no bios > splash, not GRUB menu, no OpenRC prints), and the monitor goes to low power > mode after a while (I haven't quite confirmed if this is actually the case, > or if everything happens before my monitor have actually stated, but I'd > expect the GRUB menu would hang long enough for it to do so).
You can increase the GRUB timeout to a longer interval, but if this an intermittent phenomenon it is probably related to hardware. Check your cable and replace it if possible, or use an alternative port (DP/HDMI/DVI). > However, it does wake up if I switch to another TTY (e.g. ctrl+alt+F4) and > lets me log on, so it has obviously booted up. If I switch back to TTY 8 > from there it just shows a blinking cursor (i.e. not SDDM, which is what > I'd expect). If I reboot from the TTY that lets me log on, the boot process > is usually normal and leaves me at the SDDM login. As others have mentioned sddm now starts in the first available tty, normaly on VT2. However, some users/PCs appear to have problems with more recent sddm versions, whereby the sddm-greeter fails to start, or fails to login into a desktop: https://bugs.gentoo.org/913862 > Any tips on how to debug this would be much appreciated. Check the output on /var/log/ssdm when this problem manifests.
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