Created attachment 619431 [details] Dmesg output with 'drm.debug=14' kernel parameter set Description of problem: This bug was filed for the Fedora 18 Alpha Radeon Test Day. Upon rebooting the system, X fails to start or does not display the GDM login screen in Fedora 18. This system has all the latest updates. It was thought, for a time, that the length of uptime of the system before attempting to reboot impacted the result, but this is apparently not true as restarts of the system immediately after bootup results in the same issue. Please see the picture attached to this report. The mouse cursor actually displays and is able to be moved around the screen, but the rest of the screen is blank with the GDM login never appearing. This issue is not present when the computer is powered down entirely. In one instance, it was required to wait about 5 minutes after the system was completely powered down to boot up with a working X and display. Version-Release number of selected component (if applicable): xorg-x11-drv-ati-7.0.0-0.6.20120910git7c7f27756.fc18.x86_64 gdm-3.6.0-1.fc18.x86_64 How reproducible: Always on reboot. Steps to Reproduce: 1. Start up the system from an 'off' state. 2. Wait for the GDM login screen to appear. 3. When it appears, reboot (not shutdown) the system. 4. Upon reboot, only the mouse cursor shows up and the GDM login screen never appears. Actual results: X fails to start or display a screen Expected results: X starts properly and displays the GDM on reboot Additional info: I was having a very similar issue with this effect during the Fedora 18 Nouveau test day, although, for that bug (using NVIDIA graphics) the issue was more sporadic - X sometimes worked on reboot and sometimes not. Here, with the ATI, it seemingly never works on reboot. The bug I filed is here: https://bugzilla.redhat.com/show_bug.cgi?id=861646 Smolt profile: http://www.smolts.org/client/show/pub_93c84bef-cc7a-4308-b3d6-42916961926b
Created attachment 619432 [details] Xorg.0.log
Created attachment 619442 [details] Picture of blank screen after reboot, cursor displays correctly
Attempted to perform a reboot/restart this morning and the issue persists. The issue also presented itself twice during the bootup from a completely shutdown state. All Xorg.*.log and /var/log/gdm logs attached as of now. When the display does not come up after reboot, exiting to the shell and issuing a 'systemctl stop display-manager.service' and then a 'systemctl start display-manager.service' allows the GDM login screen to appear. It takes some time after starting the service, but it does appear. X seems very sluggish though after performing this procedure.
Created attachment 619447 [details] All Xorg.*.log files directly after failing to display GDM login
Created attachment 619448 [details] All /var/log/gdm logs directly after failing to display GDM login
After some additional tests this afternoon and this evening, it appears the GDM login screen does eventually appear from the state shown in https://bugzilla.redhat.com/attachment.cgi?id=619442, however, it typically takes 3 to 4 minutes from a blank screen to the login screen. Very rarely, the system immediately displays the login screen at startup. The usual case is the 3 to 4 minutes. I think that this must be the behavior of the ATI driver (or at least NOT gnome-shell) since my NVIDIA system with exactly the same updates applied does not exhibit this behavior. However, that is just a guess at this point.
The delay before X displays the GDM login screen and the GNOME 3 Activities panel seems to be substantially less with today's Fedora 18 updates. I will keep testing.
This sounds like the issue I'm having - https://bugzilla.redhat.com/show_bug.cgi?id=875557. Seems to be an ATI driver issue. There also seems to be some confluence with a GDM bug that is apparently resolved in 3.6.2; sorry I don't have the bug number for that to hand.
Adam, are you able to reproduce it on latest Fedora 18 or 19?
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I cannot reproduce on the very same card with F21 rawhide or RHEL7; GDM displays immediately every time after a reboot. Closing now.