Description of problem: When trying to switch users, massive graphical corruption occurs and the system freezes. Version-Release number of selected component (if applicable): 2.6.5-4.fc22 How reproducible: Always Steps to Reproduce: 1. Log in as a user 2. Go to log out 3. Click "Switch user" Actual results: System freeze with graphical corruption Expected results: Returns to login manager for another user to log in Additional info: Login manager is gdm-1:3.16.2-1.fc22 Graphics card is the following: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM] (prog-if 00 [VGA controller]) Subsystem: PC Partner Limited / Sapphire Technology Device e206 Flags: bus master, fast devsel, latency 0, IRQ 29 Memory at d0000000 (64-bit, prefetchable) [size=256M] Memory at efe20000 (64-bit, non-prefetchable) [size=128K] I/O ports at e000 [size=256] Expansion ROM at efe00000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: radeon Kernel modules: radeon
gdm user switching works fine here, graphical corruption normally indicates a driver issue.
also happens to me quite often, although my screen just turns black and then the only way to recover is to reboot via the power button. If the machine has been running for a week, the restart and install updates do the same, screen turns black and computer freezes with no disk activity. 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device 21da Flags: bus master, fast devsel, latency 0, IRQ 27 Memory at f0000000 (64-bit, non-prefetchable) [size=4M] Memory at e0000000 (64-bit, prefetchable) [size=256M] I/O ports at 5000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915 Kernel modules: i915 Lenovo X220 Intel HD Graphics 3000 Name : gdm Arch : x86_64 Epoch : 1 Version : 3.16.3 Release : 1.fc22 Size : 3.3 M Repo : @System From repo : updates Summary : The GNOME Display Manager URL : https://wiki.gnome.org/Projects/GDM License : GPLv2+ Description : GDM provides the graphical login screen, shown shortly after boot up, : log out, and when user-switching.
This is old bug, if you still can reproduce it - please reopen.