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{{QA/Test_Case
{{Testcase video multihead|driver=radeon|module=radeon}}
|description=This test case tests whether multiple displays work successfully with the Radeon driver. You will need at least two monitors connected to your Radeon video adapter to perform this test.
[[Category:Package_xorg-x11-drv-radeon_core_test_cases]]
|actions=
# Connect as many displays as you can to the available ports on your display adapter
# Ensure the 'nomodeset' kernel parameter is not enabled in your bootloader configuration (unless you need it for basic X operation to succeed)
# Ensure the file {{filename|/etc/X11/xorg.conf}} does not exist, or is a known-good configuration file that uses the 'radeon' driver
# Shut your system down entirely, then start it up again
# Verify that the graphical environment starts correctly and is spanned across all connected displays
# Open a console and run the command {{command|xrandr}}. Take a copy of the results
# Run the GNOME display configuration tool, {{command|gnome-display-properties}}. Verify that it correctly shows each of the connected displays (monitors). Test re-arranging, enabling, disabling and configuring displays
|results=
# xrandr should report each connected display and the correct available modes on each
# gnome-display-properties 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
}}
[[Category:Package_xorg-x11-drv-ati_core_test_cases]]

Revision as of 15:23, 10 January 2011

Description

This test case tests whether multiple displays work successfully with the radeon driver, and whether desktop environments handle multiple displays correctly. You will need at least two displays connected to your radeon video adapter to perform this test.

Setup

  1. Connect as many displays as you can to the available ports on your display adapter
    • If you have more ports than displays, try doing this test multiple times, connecting the available displays to different ports each time, to test as many ports as you can
  2. Ensure the nomodeset and radeon.modeset=0 kernel parameters are not set in your bootloader configuration
    • You can see your current kernel options by running cat /proc/cmdline
  3. Ensure the file /etc/X11/xorg.conf does not exist, or is a valid file that uses the radeon driver
  4. Shut your system down entirely, then start it up again
  5. If using a live image to test, ignore the above steps and simply boot the system from the live image with default options

How to test

  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 desktop's display configuration tool. For GNOME 3, this is gnome-control-center display. For desktops without their own tool, you can use the command line xrandr utility. Verify that it correctly shows each of the connected displays (monitors). Test re-arranging, enabling, disabling and configuring displays

Expected Results

  1. xrandr should report each connected display and the correct available modes on each
  2. Both the display server 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 the display server, and the graphical environment should correctly adjust itself to the added or removed display
  3. 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
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