[Bug 16441] New: Display is washed out on 2nd monitor - ATI ES1000 chipset

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Jun 20 03:23:50 PDT 2008


http://bugs.freedesktop.org/show_bug.cgi?id=16441

           Summary: Display is washed out on 2nd monitor - ATI ES1000
                    chipset
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: geoff at linuxsolve.co.uk
         QAContact: xorg-team at lists.x.org


Created an attachment (id=17248)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=17248)
Xorg.0.log for Fedora Core 8

This bug is identical to https://bugs.freedesktop.org/show_bug.cgi?id=12844 
This bug has been marked as Resolved, yet I am having the identical symptoms
even after upgrading to latest driver: xorg-x11-drv-ati-6.8.0-4.fc8.i386.rpm

I think the ATI ES1000 chipset (device id: 515e) must have been missed in the
resolution of 12844.

Symptoms: Display is washed out (bleached) on 2nd monitor. Primary monitor is
fine. 

On Fedora Core 5, both monitors using driver 6.6.3 are displaying normally.
After upgrading to Fedora core 8 with the latest driver 6.8.0-4, the 2nd
monitor is washed out. Contrast settings have no effect and greyed out sections
are essentially unreadable.

I did a diff on the settings for FC5 and FC8 as follows using radeontool:
*** radeontool_regs_fc5 2008-06-18 15:39:50.000000000 +0100
--- radeontool_regs_fc8 2008-06-18 15:54:38.000000000 +0100
***************
*** 1,10 ****
  RADEON_DAC_CNTL=ff002102
! RADEON_DAC_CNTL2=00010f80
! RADEON_TV_DAC_CNTL=e0490223
  RADEON_DISP_OUTPUT_CNTL=00000000
  RADEON_CONFIG_MEMSIZE=04000000
  RADEON_AUX_SC_CNTL=00000000
! RADEON_CRTC_EXT_CNTL=00008048
  RADEON_CRTC_GEN_CNTL=03200600
  RADEON_CRTC2_GEN_CNTL=04000000
  RADEON_DEVICE_ID=0000515e
--- 1,10 ----
  RADEON_DAC_CNTL=ff002102
! RADEON_DAC_CNTL2=00000180
! RADEON_TV_DAC_CNTL=20000000
  RADEON_DISP_OUTPUT_CNTL=00000000
  RADEON_CONFIG_MEMSIZE=04000000
  RADEON_AUX_SC_CNTL=00000000
! RADEON_CRTC_EXT_CNTL=00008040
  RADEON_CRTC_GEN_CNTL=03200600
  RADEON_CRTC2_GEN_CNTL=04000000
  RADEON_DEVICE_ID=0000515e
***************
*** 14,17 ****
  RADEON_GPIO_CRT2_DDC=00000300
  RADEON_GPIO_DVI_DDC=00000300
  RADEON_GPIO_VGA_DDC=00000300
! RADEON_LVDS_GEN_CNTL=0880000a
--- 14,17 ----
  RADEON_GPIO_CRT2_DDC=00000300
  RADEON_GPIO_DVI_DDC=00000300
  RADEON_GPIO_VGA_DDC=00000300
! RADEON_LVDS_GEN_CNTL=08000009


I downloaded radeontools-hacked so I could experiment with the register
settings.
I was able to fix the problem on the 2nd monitor by doing the following using
the hacked radeontool:

[root at chassis1 radeontool]# ./radeontool regset TV_DAC_CNTL 0xe0490223
OLD: TV_DAC_CNTL (088c) 0x00000000
NEW: TV_DAC_CNTL (088c) 0xe0490223
[root at chassis1 radeontool]# 
Contrast immediately became normal!

The system I am using is a blade enclosure. Each computing blade has a VGA
connector on the blade (this is the primary) and a Rear-transition module with
another VGA connector (this is the secondary). No DVI outputs are available on
these computing blades. I can provide details of the blade if required but I
think you will conclude this is an ATI ES1000 (device id 515e) problem.

I've attached the Xorg.0.log on Fedora Core 8.

Regards,

Geoff
Linuxsolve Ltd (UK)


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