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Hi,
Turned my PC on this morning to find an issue with the monitors going to sleep immediately after booting. The boot process is usually slim autologin to a cinnamon session. I can see as far as entering my LUKS passphrase, followed by a few additional lines, followed by blank monitors and monitors entering power saving mode.
Booting with nomodeset on the kernel command line allows me to boot to a terminal and I can login etc, but obviously X doesn't start. I'm using xf86-video-ati drivers.
When booting with KMS enabled I also have a runaway systemd-udevd process which is thrashing my processor and I'm unable to kill it (I've tried kill -9 and still it persists).
The PC was working fine when I shut it down last night. No updates have been performed since, and no configuration changes have been made. I did notice that the power management dialog in the settings failed to open though.
Any suggestions would be welcome please, as I've now lost half a day trying to get this resolved.
TIA
X.
Edit: I've also tried downgrading xserver to 1.15, xf86-video-ati and the associated dependencies with no change.
Edit2: I've also disabled slim and rebooted and the same thing happens - so I don't believe it's an issue with X but with KMS.
Edit3: Booting with acpi=off on the kernel command line also fails with the same result.
Last edited by xanthi (2014-07-30 13:55:58)
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Turned out to be an issue with libdrm. Apparently I had run some updates yesterday before shutting down, but they didn't appear in pacman.log; instead I found them by looking in the pacman package cache and found:
-rw-r--r-- 1 root root 110072 Jul 29 22:59 lib32-libdrm-2.4.56-1-x86_64.pkg.tar.xz
-rw-r--r-- 1 root root 160996 Jul 29 22:55 libdrm-2.4.56-1-x86_64.pkg.tar.xzDowngraded [lib32-]libdrm packages to 2.4.54-1, rebooted, and success.
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