On 9/20/07, Ken Bloom <[EMAIL PROTECTED]> wrote: > Package: xserver-xorg-video-ati > Version: 1:6.7.192-4 > Severity: normal > > When I configure my laptop (built-in screen resolution 1280x768) to > display on a projector with the following commands > $ xrandr --output VGA-0 --mode 1280x1024 --output LVDS --off > I find that the top 768 rows of pixels are darker than the bottom 256 > rows of pixels, and the bottom 256 rows don't redraw correctly. > > If I try > $ xrandr --output VGA-0 --mode 1024x768 --output LVDS --off > then the display on the projector is dim, and different areas of the > screen display with different levels of fadedness. >
Can you attach the output of xrandr and xrandr --verbose before and after making these changes? > I As'm using an ATI Radeon XPRESS 200M card in a Compaq Presario > v2310us, I had to create the modes in question after plugging in the > VGA monitor. > xrandr --newmode "1280x1024" 110 1280 1328 1512 1712 1024 1025 1028 1054 > xrandr --addmode VGA-0 "1280x1024" > xrandr --addmode VGA-0 "1024x768" > > I believe that last command uses the same 1024x768 mode that was > autodetected by the laptop for its LCD. > > I think there may be a related bug in here that the driver never > detects when I've plugged in the external monitor/projector, and never > probes the EDID on the external monitor/projector. XPRESS chips seem to almost always lie about their ddc line. Can you try 6.7.193 or ati git head and see if that helps? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]