Hide Forgot
Created attachment 1217566 [details] Screenshot showing the issue Under rawhide and a Gnome session under Wayland, the Firefox browser displays garbage with repeated tiles in the Firefox Window. This does not occur under fedora25 using the same Firefox binary. This also does not occur under an Xorg Gnome session. I can only reproduce this on a system with Intel graphics. AMD graphics systems do not exhibit the issue. The easiest way to reproduce is to launch Firefox and display your Facebook home page and Maximize and un-maximize the Firefox witdow several times. Oddly repeatedly hitting the Alt key on the keyboard will eventually fix the display.
It is no longer clear that this is confined to wayland sessions only. Doing this under an Xorg session just resulted in a Gnome session crash which is similar to what happens if I do this under a Wayland session using Google Chrome. It is still true that this does not happen with AMD graphics or under the fedora 25 pre-release with the latest updates applied.
I also just got a similar garbled screen using Xorg.
I installed kernel-0:4.8.4-301.fc25.x86_64 on my fedora 26 rawhide system and running that kernel I have, so far, not seen the issue.
I also can not duplicate the issue using the current fedora26 kernel if I set WaylandEnable=false in /etc/gdm/.custom.conf and run an Xorg Gnome session.
Here is the output from lshw -class display: *-display description: VGA compatible controller product: 2nd Generation Core Processor Family Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:27 memory:fe000000-fe3fffff memory:d0000000-dfffffff ioport:f000(size=64) memory:c0000-dffff
I should have included the section on the system itself: rawhide.wg9s.com description: Desktop Computer product: 1761E4U (To be filled by O.E.M.) vendor: LENOVO version: ThinkCentre M71z serial: MJXCFPN width: 64 bits capabilities: smbios-2.6 dmi-2.6 smp vsyscall32 configuration: administrator_password=disabled boot=normal chassis=desktop f amily=To be filled by O.E.M. keyboard_password=enabled power-on_password=disable d sku=To be filled by O.E.M. uuid=1C9085CF-1FBB-8653-24CA-867F211C86AB
Despite my previous comments. Everything I said about using Wayland in less places perhaps made it less likely to encounter this issue but does not prevent it's occurrence. The only thing I have tried that seems to resolve this issue is reverting to a version 4.8 kernel.
This seems better with kernel version 4.9.0-0.rc5.git0.1.fc26.x86_64. Were there Intel graphics changes between 4.9.0-0.rc4.git3.1.fc26.x86_64 and 4.9.0-0.rc5.git0.1.fc26.x86_64?