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Created attachment 1506506[details]
Xorg log of failed session
Description of problem:
The xorg log is filled with dozens of:
[ 28.650] (EE) FBDEV(1): FBIOPUTCMAP: Invalid argument
Which looks to be similar to another bug traced back to plymouth. In any case Xorg fails to start.
7.5 had no issues. Downgrade to 7.5 packages (under Additional info) restores working condition
Version-Release number of selected component (if applicable):
xorg-x11-drv-fbdev-0.5.0-1.el7
xorg-x11-drv-nouveau-1.0.15-1.el7
xorg-x11-server-Xorg-1.20.1-5.1.el7
xorg-x11-drv-vesa-2.4.0-1.el7
plymouth-0.8.9-0.31.20140113.el7
How reproducible:
100% on systems with an nVidia video card. 0% on systems with an intel card.
Steps to Reproduce:
1.Update to 7.6 on a system with an nVidia card
2.reboot
3.X fails to start
Actual results:
X fails to load GDM and hangs "waiting for plymouth" systemd service
(EE) FBDEV(1): FBIOPUTCMAP: Invalid argument
Expected results:
System boots to X as before.
Additional info:
Possibly related
https://bugzilla.redhat.com/show_bug.cgi?id=871054
If I run this command:
yum downgrade xorg-x11-drv-nouveau xorg-x11-server-Xorg xorg-x11-drv-qxl.x86_64 xorg-x11-drv-vesa xorg-x11-drv-dummy xorg-x11-drv-v4l xorg-x11-drv-ati xorg-x11-drv-vmware xorg-x11-drv-fbdev xorg-x11-drv-intel.x86_64
and reboot X starts back up again as expected.
lshw -numeric -C display
*-display
description: 3D controller
product: G98 [Quadro NVS 450] [10DE:6FA]
vendor: NVIDIA Corporation [10DE]
physical id: 0
bus info: pci@0000:03:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom
configuration: driver=nouveau latency=0
resources: irq:29 memory:f6000000-f6ffffff memory:ec000000-efffffff memory:f4000000-f5ffffff ioport:e000(size=128) memory:f7000000-f701ffff
*-display
description: VGA compatible controller
product: G98 [Quadro NVS 450] [10DE:6FA]
vendor: NVIDIA Corporation [10DE]
physical id: 0
bus info: pci@0000:04:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
configuration: driver=nouveau latency=0
resources: irq:30 memory:f2000000-f2ffffff memory:e8000000-ebffffff memory:f0000000-f1ffffff ioport:d000(size=128) memory:f3000000-f301ffff
I did a bunch of scratch builds and isolated the issue down to:
0001-linux-Make-platform-device-probe-less-fragile.patch
xorg built without that patch works as expected.
I only have access to P50 notebooks (my and in lab) with GM107GLM [Quadro M1000M] [10DE:13B1] graphics.
I tried with a fresh installation of RHEL 7.6 (xorg-x11-server-Xorg-1.20.1-3.el7.x86_64) and RHEL 7 CSB (xorg-x11-server-Xorg-1.20.1-6.jx1.el7.x86_64), but I was unable to reproduce the described problem - docked/undocked, with/without external screen - X started every time without problem.
So I am unable to confirm whether the fix solved the original issue.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2019:2079