[Bug 613165] New: 1680x1050 screen flashing when connected via DVI/HDMI
http://bugzilla.novell.com/show_bug.cgi?id=613165 http://bugzilla.novell.com/show_bug.cgi?id=613165#c0 Summary: 1680x1050 screen flashing when connected via DVI/HDMI Classification: openSUSE Product: openSUSE 11.3 Version: Factory Platform: x86-64 OS/Version: openSUSE 11.3 Status: NEW Severity: Major Priority: P5 - None Component: X.Org AssignedTo: bnc-team-xorg-bugs@forge.provo.novell.com ReportedBy: schmuker@gmail.com QAContact: xorg-maintainer-bugs@forge.provo.novell.com Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; de; rv:1.9.2.4) Gecko/20100513 SUSE/3.6.4-1.17 Firefox/3.6.4 I have a dual monitor setup at work, one 1280x1024 and one 1680x1050. When I connect both via DVI and enable them using xrandr, the 1680x1050 monitor flashes, i.e. turns black for a short time, then shows the image again, turns black etc. The duration of the black phase appears to depend on the content of the screen. Blank Desktop does give no blanking, neither does konsole. But krunner, Yast2 or kwrite for example cause flashing. The larger the window, the longer the black phase. When the windows are large, the screen stays black. The other screen (1280x1024) is not affected. Swapping the connectors doesn't help. Using GNOME instead of KDE does not help, rather makes the flickering worse. When the 1680x1050 is connected on VGA, the problem does not appear, but this obviously is not a real workaround since image quality on VGA is definitely worse. My Hardware: Lenovo Thinkpad 410s (Intel Core i5, Intel HD Graphics) on docking station (Thinkpad Mini Dock Plus Series 3). Reproducible: Always Steps to Reproduce: 1. Connect a 1280x1024 and a 1680x1050 panel via DVI. 2. use xrandr to enable native resolution on both displays and to place one --left-of the other 3. start krunner, Yast2, or kwrite and move the window on the 1680x1024 screen. Actual Results: the 1680x1050 screen flickers with low frequency or turns completely black, depending on the size of the window. Expected Results: No flickering, just displaying a normal desktop. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Stefan Dirsch
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Stefan Dirsch
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--- Comment #2 from Michael Schmuker
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--- Comment #3 from Michael Schmuker
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--- Comment #4 from Michael Schmuker
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Michael Schmuker
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--- Comment #6 from Michael Schmuker
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Stefan Dirsch
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Stefan Dirsch
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Stefan Dirsch
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Michael Schmuker
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--- Comment #9 from Stefan Dirsch
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--- Comment #10 from Michael Schmuker
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Stefan Dirsch
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Michael Schmuker
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--- Comment #13 from Michael Schmuker
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--- Comment #14 from Michael Schmuker
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Stefan Dirsch
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Michael Schmuker
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--- Comment #17 from Stefan Dirsch
:) Each one of the modes you suggested works; Thanks! :)
The question now is, can anything be done to fix this permanently?
This information should be added to the quirks information of xorg-server (hw/xfree86/modes/xf86EdidModes.c).
BTW, the monitor worked without issues with my previous notebook, which had an Ati mobility radeon x1300 graphics chip, with either fglrx, radeon and radeonhd drivers.
Most likely you still used a static xorg.conf with a 1680x1050 modeline generated by SaX2. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Stefan Dirsch
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Michael Schmuker
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--- Comment #20 from Stefan Dirsch
Created an attachment (id=368961) --> (http://bugzilla.novell.com/attachment.cgi?id=368961) [details] output of xrandr --verbose on a freshly started xserver
Thanks! 1680x1050 (0x4f) 146.2MHz -HSync +VSync +preferred h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.3KHz v: height 1050 start 1053 end 1059 total 1089 clock 60.0Hz
... possibly
DDC_QUIRK_135_CLOCK_TOO_HIGH "Recommended 135MHz pixel clock is too high"
helps here
So that option wouldn't help, since only one modeline for this mode is available. I'm afraid you need to live with a hack below /etc/X11/xorg.conf.d or report that issue on bugs.freedesktop.org (product: xorg, component: Server/general). Please add me to Cc (sndirsch@suse.de). You'll need to register for an account on bugs.freedesktop.org first, in case you don't have one yet. Thanks. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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--- Comment #21 from Michael Schmuker
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Stefan Dirsch
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