[Bug 508534] New: SAX2 misconfigures HP mini 1366x768 display
http://bugzilla.novell.com/show_bug.cgi?id=508534 Summary: SAX2 misconfigures HP mini 1366x768 display Classification: openSUSE Product: openSUSE 11.1 Version: Final Platform: i686 OS/Version: openSUSE 11.1 Status: NEW Severity: Normal Priority: P5 - None Component: SaX2 AssignedTo: bnc-team-xorg-bugs@forge.provo.novell.com ReportedBy: jbottomley@novell.com QAContact: sax2-maintainer-bugs@forge.provo.novell.com Found By: --- User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.10) Gecko/2009042700 SUSE/3.0.10-1.1.1 Firefox/3.0.10 On first installation, SAX2 configured the display as 800x600. I had to reconfigure it by selecting the correct resolution of 1366x760. However, after doing this, the screen is slightly unclear. It turns out that SAX2 has manually added this mode line to my xorg.conf: Modeline "1366x768" 69.92 1368 1424 1568 1768 768 769 772 791 Which is the one producing the slight waving across the display. When X starts, the panel EDID recommends this mode (which gets ignored): (II) intel(0): Printing DDC gathered Modelines: (II) intel(0): Modeline "1366x768"x0.0 72.30 1366 1414 1446 1526 768 771 776 790 +hsync -vsync (47.4 kHz) When I use xrandr to install this mode, the waviness goes and the panel becomes clear. So, two questions: 1) Why is SaX2 even trying to install a modeline? For modern X we can simply rely on picking up the panel EDID information ... there's no need to override anything 2) When the panel clearly supplies an EDID entry for the correct mode, why is it being ignored Reproducible: Always Steps to Reproduce: 1. Use SaX to reconfigure the display 2. 3. Actual Results: We end up with the slightly fuzzy 50Hz screen Expected Results: We should end up with the crisp 60HZ screen recommended by EDID -- 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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User sndirsch@novell.com added comment
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Stefan Dirsch
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User jbottomley@novell.com added comment
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James Bottomley
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Stefan Dirsch
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Stefan Dirsch
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User jbottomley@novell.com added comment
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--- Comment #4 from James Bottomley
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James Bottomley
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Stefan Dirsch
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User jbottomley@novell.com added comment
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James Bottomley
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Stefan Dirsch
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User jbottomley@novell.com added comment
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James Bottomley
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--- Comment #10 from James Bottomley
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User sndirsch@novell.com added comment
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Stefan Dirsch
OK, I can't reinstall the system, but I can blow away the configuration and try again. The default SaX2 installation gives the attached configuration at 800x600 ... this is the one that has the monitor horizontal refresh too low. Since this is given at install time, there's no way to modify it.
You can't change it during installation if you chose autoconfiguration for installation (which is our default). Afterwards you can change it via YaST/SaX2.
Next, when you log in, reconfigure display is handled by the 'Configure Display settings' applet. It's this that tells me I have a 10" monitor and allows me to set the resolution, and when I set it to 1366x768 it's at too low a refresh rate.
This is a different tool. Either krandrtray (KDE4) or gnome-display-properties (Gnome). I think these tools can't change the hsync/vsync limits of the monitor, so it's possible that they offer such modelines.
So the problem is that we get into this situation on the default path a user would use to configure the system.
If I ignore the display panel applet and fire up SaX2 again, I can then see it has an unknown monitor and set it to a 1366x768@60Hz panel ... but a causal user wouldn't know to do this, which is why this is a usability bug.
Again. We need to get rid of xorg.conf/sax2, but it's not possible to fix this still for 11.1. *** This bug has been marked as a duplicate of bug 441404 *** http://bugzilla.novell.com/show_bug.cgi?id=441404 -- 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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