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fasorud
n00b
Joined: 17 Mar 2005
Posts: 24
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 Posted: Tue May 08, 2007 6:59 pm Post subject: fglxr + dual monitors - second monitor goes on and off |
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Hello,
I have an ATI x1300 with dual LCDs connected to it through DVI. Everything works fine except for a small thing that is really annoying me 
My second monitor every once in a while (maybe every 30 seconds or so but not really consistent) goes blank for a second and then comes back on. The 2 monitors are identical (Acer AL1916) and looking in the X log file they are identified correctly through EDID.
I am running Gnome. Interestingly enough, if I am running in WindowMaker this doesn't happen, although I do notice a little bit of flickering which is making me believe that the sync rate is not right.
Any ideas on what I can change to fix this?
Here are relevant parts:
xorg:
| Code: |
Section "ServerLayout"
Identifier "Main Layout"
Screen 0 "aticonfig-Screen[0]" 0 0
InputDevice "Mouse1" "CorePointer"
InputDevice "Mouse2" "SendCoreEvents"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection
Section "ServerFlags"
Option "blank time" "10" # 10 minutes
Option "standby time" "20"
Option "suspend time" "30"
Option "off time" "60"
EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[0]"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]"
Driver "fglrx"
Option "DesktopSetup" "horizontal"
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]"
Device "aticonfig-Device[0]"
Monitor "aticonfig-Monitor[0]"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
EndSubSection
EndSection
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And the log file:
| Quote: |
(II) fglrx(0): Connected Display1: DFP on internal TMDS [tmds1]
(II) fglrx(0): Display1 EDID data ---------------------------
(II) fglrx(0): Manufacturer: ACR Model: ad49 Serial#: 1885384741
(II) fglrx(0): Year: 2007 Week: 6
(II) fglrx(0): EDID Version: 1.3
(II) fglrx(0): Digital Display Input
(II) fglrx(0): Max H-Image Size [cm]: horiz.: 38 vert.: 30
(II) fglrx(0): Gamma: 2.07
(II) fglrx(0): DPMS capabilities: Off; RGB/Color Display
(II) fglrx(0): First detailed timing is preferred mode
(II) fglrx(0): redX: 0.634 redY: 0.354 greenX: 0.286 greenY: 0.620
(II) fglrx(0): blueX: 0.138 blueY: 0.076 whiteX: 0.312 whiteY: 0.328
(II) fglrx(0): Supported VESA Video Modes:
(II) fglrx(0): 720x400@70Hz
(II) fglrx(0): 640x480@60Hz
(II) fglrx(0): 640x480@67Hz
(II) fglrx(0): 640x480@72Hz
(II) fglrx(0): 640x480@75Hz
(II) fglrx(0): 800x600@56Hz
(II) fglrx(0): 800x600@60Hz
(II) fglrx(0): 800x600@72Hz
(II) fglrx(0): 800x600@75Hz
(II) fglrx(0): 832x624@75Hz
(II) fglrx(0): 1024x768@60Hz
(II) fglrx(0): 1024x768@70Hz
(II) fglrx(0): 1024x768@75Hz
(II) fglrx(0): 1280x1024@75Hz
(II) fglrx(0): Manufacturer's mask: 0
(II) fglrx(0): Supported Future Video Modes:
(II) fglrx(0): #0: hsize: 1280 vsize 1024 refresh: 75 vid: 36737
(II) fglrx(0): #1: hsize: 1280 vsize 1024 refresh: 60 vid: 32897
(II) fglrx(0): #2: hsize: 1152 vsize 864 refresh: 75 vid: 20337
(II) fglrx(0): #3: hsize: 1152 vsize 864 refresh: 60 vid: 16497
(II) fglrx(0): #4: hsize: 1024 vsize 768 refresh: 75 vid: 20321
(II) fglrx(0): #5: hsize: 1024 vsize 768 refresh: 60 vid: 16481
(II) fglrx(0): #6: hsize: 800 vsize 600 refresh: 75 vid: 20293
(II) fglrx(0): #7: hsize: 800 vsize 600 refresh: 60 vid: 16453
(II) fglrx(0): Supported additional Video Mode:
(II) fglrx(0): clock: 108.0 MHz Image Size: 376 x 301 mm
(II) fglrx(0): h_active: 1280 h_sync: 1328 h_sync_end 1440 h_blank_end 1688 h_border: 0
(II) fglrx(0): v_active: 1024 v_sync: 1025 v_sync_end 1028 v_blanking: 1066 v_border: 0
(II) fglrx(0): Serial No: L49083844247
(II) fglrx(0): Ranges: V min: 55 V max: 75 Hz, H min: 30 H max: 83 kHz, PixClock max 140 MHz
(II) fglrx(0): Monitor name: Acer AL1916
(II) fglrx(0): End of Display1 EDID data --------------------
(II) fglrx(0): Connected Display2: DFP on secondary TMDS [tmds2i]
(II) fglrx(0): Display2 EDID data ---------------------------
(II) fglrx(0): Manufacturer: ACR Model: ad49 Serial#: 1885384730
(II) fglrx(0): Year: 2007 Week: 6
(II) fglrx(0): EDID Version: 1.3
(II) fglrx(0): Digital Display Input
(II) fglrx(0): Max H-Image Size [cm]: horiz.: 38 vert.: 30
(II) fglrx(0): Gamma: 2.07
(II) fglrx(0): DPMS capabilities: Off; RGB/Color Display
(II) fglrx(0): First detailed timing is preferred mode
(II) fglrx(0): redX: 0.634 redY: 0.354 greenX: 0.286 greenY: 0.620
(II) fglrx(0): blueX: 0.138 blueY: 0.076 whiteX: 0.312 whiteY: 0.328
(II) fglrx(0): Supported VESA Video Modes:
(II) fglrx(0): 720x400@70Hz
(II) fglrx(0): 640x480@60Hz
(II) fglrx(0): 640x480@67Hz
(II) fglrx(0): 640x480@72Hz
(II) fglrx(0): 640x480@75Hz
(II) fglrx(0): 800x600@56Hz
(II) fglrx(0): 800x600@60Hz
(II) fglrx(0): 800x600@72Hz
(II) fglrx(0): 800x600@75Hz
(II) fglrx(0): 832x624@75Hz
(II) fglrx(0): 1024x768@60Hz
(II) fglrx(0): 1024x768@70Hz
(II) fglrx(0): 1024x768@75Hz
(II) fglrx(0): 1280x1024@75Hz
(II) fglrx(0): Manufacturer's mask: 0
(II) fglrx(0): Supported Future Video Modes:
(II) fglrx(0): #0: hsize: 1280 vsize 1024 refresh: 75 vid: 36737
(II) fglrx(0): #1: hsize: 1280 vsize 1024 refresh: 60 vid: 32897
(II) fglrx(0): #2: hsize: 1152 vsize 864 refresh: 75 vid: 20337
(II) fglrx(0): #3: hsize: 1152 vsize 864 refresh: 60 vid: 16497
(II) fglrx(0): #4: hsize: 1024 vsize 768 refresh: 75 vid: 20321
(II) fglrx(0): #5: hsize: 1024 vsize 768 refresh: 60 vid: 16481
(II) fglrx(0): #6: hsize: 800 vsize 600 refresh: 75 vid: 20293
(II) fglrx(0): #7: hsize: 800 vsize 600 refresh: 60 vid: 16453
(II) fglrx(0): Supported additional Video Mode:
(II) fglrx(0): clock: 108.0 MHz Image Size: 376 x 301 mm
(II) fglrx(0): h_active: 1280 h_sync: 1328 h_sync_end 1440 h_blank_end 1688 h_border: 0
(II) fglrx(0): v_active: 1024 v_sync: 1025 v_sync_end 1028 v_blanking: 1066 v_border: 0
(II) fglrx(0): Serial No: L49083844247
(II) fglrx(0): Ranges: V min: 55 V max: 75 Hz, H min: 30 H max: 83 kHz, PixClock max 140 MHz
(II) fglrx(0): Monitor name: Acer AL1916
(II) fglrx(0): End of Display2 EDID data --------------------
(II) fglrx(0): Primary Controller - DFP on internal TMDS
(II) fglrx(0): Secondary Controller - DFP on secondary TMDS
(II) fglrx(0): Internal Desktop Setting: 0x00000010
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SnakeByte
Apprentice
Joined: 04 Oct 2002
Posts: 177
Location: Europe - Germany
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| Posted: Wed May 09, 2007 11:44 am Post subject: |
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Hi,
not really sure this might help but what about switching the screens / cables?
Could be a hardware problem.
regards |
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fasorud
n00b
Joined: 17 Mar 2005
Posts: 24
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| Posted: Wed May 09, 2007 1:35 pm Post subject: |
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| SnakeByte wrote: | Hi,
not really sure this might help but what about switching the screens / cables?
Could be a hardware problem.
regards |
I doubt it... It works fine in Windows.
My buddy also has the exact same setup and he has the same problem in Gnome. |
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fasorud
n00b
Joined: 17 Mar 2005
Posts: 24
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| Posted: Thu May 10, 2007 1:52 am Post subject: |
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Ok I am pretty sure that this has to do with the vertical sync rate.
When I boot into Windoze the vertical rate is set to 60Hz for both monitors.
In gentoo both monitors are set to 75 Hz which would explain the flickering.
I can force the primary monitor to 60Hz, but the secondary won't go to 60 no matter what I try.
Anyone know why?
I see these lines in my Xorg.log
(WW) fglrx(0): Option "IgnoreEDID" is not used
(WW) fglrx(0): Option "VendorName" is not used
(WW) fglrx(0): Option "ModelName" is not used
(WW) fglrx(0): Option "EDID" is not used |
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SnakeByte
Apprentice
Joined: 04 Oct 2002
Posts: 177
Location: Europe - Germany
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| Posted: Thu May 10, 2007 2:10 pm Post subject: |
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Hi,
try to put in the monitor section.
Nvidia has some special options that go to the Device section for handling secondary display,
probably ATIs driver has something similar.
regards |
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