[Bug 26753] New: gtf modelines still not working as in the past.

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=26753

           Summary: gtf modelines still not working as in the past.
           Product: xorg
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: lists at andyfurniss.entadsl.com
         QAContact: xorg-team at lists.x.org


RV670 AGP running git ddx, xserver and drt kernel.

I noticed recently that a couple of gtf modelines that uses to work some time
ago (with UMS before KMS was about) do not behave the same now - both with UMS
and KMS.

I was hoping the recent ddx/drt commits would fix this, but they haven't. Both
before and after the changes, the option new_pll=0 or 1 has no effect.

The lines below are added with xrandr and used to give exactly 50 and 100Hz.
As the xrandr output shows they now give less - the 50Hz one has become out of
range for my CRT monitor and gives a blank screen.

# 1024x768 @ 100.00 Hz (GTF) hsync: 81.40 kHz; pclk: 113.31 MHz
Modeline "1024x768_100.00"  113.31  1024 1096 1208 1392  768 769 772 814 
-HSync +Vsync

1024x768_100.00 (0x110)  113.0MHz -HSync +VSync *current
        h: width  1024 start 1096 end 1208 total 1392 skew    0 clock   81.2KHz
        v: height  768 start  769 end  772 total  814           clock   99.7Hz

# 1024x768 @ 50.00 Hz (GTF) hsync: 39.55 kHz; pclk: 51.89 MHz
  Modeline "1024x768_50.00"  51.89  1024 1064 1168 1312  768 769 772 791 
-HSync +Vsync

  1024x768_50.00 (0x10f)   51.0MHz -HSync +VSync
        h: width  1024 start 1064 end 1168 total 1312 skew    0 clock   38.9KHz
        v: height  768 start  769 end  772 total  791           clock   49.1Hz


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