On 6/25/08, Alex Deucher <[EMAIL PROTECTED]> wrote: > On Wed, Jun 25, 2008 at 10:50 AM, Jhih-Sin Chen <[EMAIL PROTECTED]> wrote: > > On Wed, Jun 25, 2008 at 10:26 PM, Alex Deucher <[EMAIL PROTECTED]> wrote: > >> On Wed, Jun 25, 2008 at 9:56 AM, Jhih-Sin Chen <[EMAIL PROTECTED]> wrote: > >>> Hi, > >>> > >>> I am using Radeon HD 3470 card with xf86-video-ati 6.8.192 on my laptop. > >>> I try to implement hotkey function to switch display device. > >>> I have set _DOS parameter in ACPI and ask VBIOS to switch display > >>> device but it fails. > >>> > >>> However, the hotkey function can switch display device successfully > >>> when I use "vesa" driver. > >>> Do you have any suggetion on this issue? Thanks. > >> > >> It's disabled on purpose. The bios goes behind the driver's back and > >> messes with the hardware which can lead to bad state or possibly hw > >> locks. You can control the outputs with xrandr so please use that. > >> On most laptops you can even change the video hotkey to produce acpi > >> events rather than banging the hw directly and then you tie that event > >> to a script that runs xrandr commands. > >> > >> Alex > >> > > > > Hi, > > > > But I can't use xrandr to swtich display device to HDMI. Is it a > > limitation of xrandr or anything wrong? > > > > what sort of problem are you having? > xrandr --output HDMI-0 --auto > should do the trick. > > What does the output of xrandr look like?
"xrandr -q" always show "hdmi-0 disconnected" even if my laptop connect to HDMI device. "xrandr --output HDMI-0 --auto" show nothing and can't switch to HDMI. Where is the start point to debug this issue? Thank you. > > > So I wanna use VBIOS to switch display device. Could you kindly tell > > me how to enabled VBIOS switch function on xf86-video-ati or give a > > start point for me to study? Thanks. > > > > The driver doesn't use it. It just disables the use of it. > > Alex > _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
