About xinerama support of x.org with ATI IGP 340M

[Alex Deucher]

On 12/14/05, Eddie Cao <eddie.cao at gmail.com> wrote:
> Hi all,
>
> I am a debian user. I recently bought a LCD display, which I intended to use
> as an external display for my laptop (HP NC4000 with IGP 340M). I've read
> some articles about dual-head set-up on the web. The problem is that it
> works flawlessly on XFree86 in debian testing, but not on X.org in debian
> testing. X.org complains that it "Failed to detect secondary monitor,
> MergedFB/Clone mode disabled". Here is a part of the output of diff between
> xorg.log and XFree86.log (diff Xorg.log.0 XFree86.log.0):
>

Add this line to the device section of your config to force both displays on:
option "monitorlayout" "lvds, crt"

Alex

> 23c534,536
> < (II) RADEON(0): EDID data from the display on port 1
> ----------------------
> ---
> > (II) RADEON(0): Displays Detected: Monitor1--Type 2, Monitor2--Type 1
> >
> > (II) RADEON(0): Monitor2 EDID data ---------------------------
> 59a573
> > (II) RADEON(0): End of Monitor2 EDID data --------------------
> 61,74c575,918
> < (II) RADEON(0): Primary:
> <  Monitor   -- CRT
> <  Connector -- VGA
> <  DAC Type  -- Primary
> <  TMDS Type -- NONE
> <  DDC Type  -- VGA_DDC
> < (II) RADEON(0): Secondary:
> <  Monitor   -- NONE
> <  Connector -- Proprietary
> <  DAC Type  -- TVDAC/ExtDAC
> <  TMDS Type -- NONE
> <  DDC Type  -- NONE
> < (II) RADEON(0): PLL parameters: rf=2700 rd=60 min=12000 max=35000;
> xclk=13300
> < (WW) RADEON(0): Failed to detect secondary monitor, MergedFB/Clone mode
> disabled
> ---
> > (II) RADEON(0): Primary Display == Type 2
> > (II) RADEON(0): Panel ID string: 1024x768
> > (II) RADEON(0): Panel Size from BIOS: 1024x768
> > (II) RADEON(0): BIOS provided dividers will be used.
> > (==) RADEON(0): Using gamma correction (1.0, 1.0, 1.0)
> > (II) RADEON(0): Validating modes on Primary head ---------
> > (II) RADEON(0): Total number of valid DDC mode(s) found: 0
> > (II) RADEON(0): Valid mode using on-chip RMX: 1024x768
> > (II) RADEON(0): Total number of valid FP mode(s) found: 1
> > (--) RADEON(0): Virtual size is 1024x768 (pitch 1024)
> > (**) RADEON(0): *Mode "1024x768": 65.0 MHz (scaled from 0.0 MHz), 48.4
> kHz, 60.0 Hz
> > (II) RADEON(0): Modeline "1024x768"   65.00  1024 1040 1176 1344  768 770
> 776 806
> > (**) RADEON(0):  Default mode "640x350": 65.0 MHz (scaled from 0.0 MHz),
> 48.4 kHz, 60.0 Hz
> > (II) RADEON(0): Modeline "640x350"   65.00  640 1040 1176 1344  350 770
> 776 806
> > (**) RADEON(0):  Default mode "640x400": 65.0 MHz (scaled from 0.0 MHz),
> 48.4 kHz, 60.0 Hz
> > (II) RADEON(0): Modeline "640x400"   65.00  640 1040 1176 1344  400 770
> 776 806
> > (**) RADEON(0):  Default mode "720x400": 65.0 MHz (scaled from 0.0 MHz),
> 48.4 kHz, 60.0 Hz
> > (II) RADEON(0): Modeline "720x400"   65.00  720 1040 1176 1344  400 770
> 776 806
> > (**) RADEON(0):  Default mode "640x480": 65.0 MHz (scaled from 0.0 MHz),
> 48.4 kHz, 60.0 Hz
> > (II) RADEON(0): Modeline "640x480"   65.00  640 1040 1176 1344  480 770
> 776 806
> > (**) RADEON(0):  Default mode "800x600": 65.0 MHz (scaled from 0.0 MHz),
> 48.4 kHz, 60.0 Hz
> > (II) RADEON(0): Modeline "800x600"   65.00  800 1040 1176 1344  600 770
> 776 806
> > (**) RADEON(0):  Default mode "832x624": 65.0 MHz (scaled from 0.0 MHz),
> 48.4 kHz, 60.0 Hz
> > (II) RADEON(0): Modeline "832x624"   65.00  832 1040 1176 1344  624 770
> 776 806
> > (==) RADEON(0): DPI set to (75, 75)
>
> Thanks
>
> Eddie
>
>
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