Red Hat Bugzilla – Bug 107113
Switching external/internal/both output on ATI MACH64 does no longer work
Last modified: 2007-11-30 17:10:32 EST
Description of problem:
On a laptop with a Mach64 chip, switching between internal/external/both video
outputs does not work (used to work under RH7 and RH8). Neither via the keyboard
function key nor an external utility (atitvout,
Both keyboard and "atitvout" do work on the virtual console, even with XFree86
running on a different console. "atitvout" claims to use ATI VBE calls (and the
keyboard probably uses BIOS calls as well, so perhaps this comes from XFree86
disabling such calls?
Version-Release number of selected component (if applicable):
$ rpm -q XFree86
(--) ATI(0): ATI 3D Rage Mobility graphics controller detected.
(--) ATI(0): Chip type 4C52 "LR", version 4, foundry TSMC, class 0, revision x01.
Steps to Reproduce:
1. hitting <Fn>-F10 or running "atitvout l; atitvout c; atitvout lc"
Keyboard: Nothing happens.
$ sudo ./atitvout c
VBE call failed.
Keyboard: Display should cycle through the available outputs
atitvout: Display should go to the selected device, if attached.
RFE: it would be very nice if different screen resolutions could be specified
for internal/external, and if the XFree86 server would get a RANDR event on
switching, to make full use of the external display capabilities.
>On a laptop with a Mach64 chip, switching between internal/external/both video
>outputs does not work (used to work under RH7 and RH8). Neither via the keyboard
>function key nor an external utility (atitvout,
Neither method is supported. The Mach64 driver is provided as-is, and we do
not support atitvout, GATOS, or any other software that doesn't come with
the distribution. Please contact the atitvout authors if you have problems
while using their utility.
The functionality provided by special laptop keystrokes to switch between
screens is done by the BIOS itself. XFree86 is not involved. That is also
not supported. If you believe this to be due to a bug in XFree86 or in the
XFree86 "ati" driver for Mach64, please report it to the XFree86 project
at http://bugs.xfree86.org so that the driver maintainer can investigate
the matter and determine a resolution.
Closing as NOTABUG as we do not support configurations which use software
we do not supply which interferes with the video hardware, and may conflict
with the running XFree86 server.