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DescriptionVasiliy Sharapov
2016-04-06 09:52:02 UTC
Filed from caserun (https://tcms.engineering.redhat.com/run/274911/#caserun_11913996)
Version-Release number of selected component (if applicable):
RHEL-6.8-20160406.n.0
xorg-x11-server-Xorg-1.17.4-9.el6.x86_64
xorg-x11-drv-intel-2.99.917-0.4.20151111.el6.x86_64
kernel-2.6.32-638.el6.x86_64
package linux-firmware is not installed
package mesa is not installed
mesa-dri-drivers-11.0.7-4.el6.x86_64
package xorg-x11-glamor is not installed
Steps to Reproduce:
1. Connect as many displays as you can to the available ports on your display
adapter.
2. Ensure the 'nomodeset' kernel parameters are not set in your bootloader
configuration.
3. Ensure the file /etc/X11/xorg.conf does not exist, or is a valid file that
uses the valid driver.
1. Verify that the graphical environment starts correctly and is spanned
across all connected displays
2. Open a console and run the command xrandr. Take a copy of the results.
3. Disconnect and then re-connect one or more displays; do this several times.
If you are using a docking station for a laptop, try removing the laptop
from and restoring the laptop to it several times.
4. Run your gnome-display-properties. Verify that it correctly shows each of
the connected displays (monitors). Test re-arranging, enabling, disabling
and configuring displays.
Actual results:
VGA output seems nonexistent. No effect on hotplug and curiously seems to be completely absent in xrandr output:
[root@dhcp40-146 ~]# xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 527mm x 296mm
1920x1080 60.00*+ 50.00 59.94
[...]
DP2 disconnected (normal left inverted right x axis y axis)
HDMI3 connected (normal left inverted right x axis y axis)
1920x1080 60.00 + 50.00 59.94
[...]
Expected results:
Both X and the graphical environment should cope smoothly with displays being
disconnected and reconnected while the system is running: the displays should
be correctly added or removed by X, and the graphical environment should
correctly adjust itself to the added or removed display
Configuration tools should allow you to arrange the displays in any
configuration, enable and disable displays, and change each display's settings;
these changes should work and be reflected in what each display actually shows