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Old 06-04-2010, 09:23 AM   #1
linq
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Registered: May 2010
Location: Russia
Distribution: Slackware 1.0,...64-14.2..
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Slack 13.1 : resolution limited to 1024x768


Can't make Slack 13.1 to run at more than 1024x768. No problems where with 12.0-13.0. Here are portions of my xorg.conf and Xorg.0.log:

Code:
Section "Monitor"
        HorizSync    31 - 81
        VertRefresh  56 - 75

Section "Device"    
        Driver      "nv"
        BusID       "PCI:1:0:0"
Section "Screen"
        DefaultDepth 24
                Depth     24
                Modes   "1280x1024"
Code:
X.Org X Server 1.7.7
Markers: (--) probed, (**) from config file, (==) default setting,
(==) Using config file: "/etc/X11/xorg.conf"
(II) LoadModule: "nv"
(II) Loading /usr/lib64/xorg/modules/drivers/nv_drv.so
(II) Module nv: vendor="X.Org Foundation"
        compiled for 1.7.5, module version = 2.1.17
        Module class: X.Org Video Driver
        ABI class: X.Org Video Driver, version 6.0
(II) Primary Device is: PCI 01@00:00:0
(--) NV: Found NVIDIA GeForce 9500 GT at 01@00:00:0
(II) Loading sub module "int10"
(**) NV(0): Depth 24, (--) framebuffer bpp 32
(II) NV(0): Output VGA2 connected
(II) NV(0): Using fuzzy aspect match for initial modes
(II) NV(0): Output VGA2 using initial mode 1024x768
(--) NV(0): Virtual size is 1024x1024 (pitch 1024)
(**) NV(0):  Default mode "1024x768": 65.0 MHz (scaled from 0.0 MHz), 48.4 kHz, 60.0 Hz
Note the last line marked (**) - "from config file", but I only have 1280x1024 there !

And what does that mean

(II) NV(0): Using fuzzy aspect match for initial modes
(II) NV(0): Output VGA2 using initial mode 1024x768
(--) NV(0): Virtual size is 1024x1024 (pitch 1024)

And KDE/Display only offers up to 1024x768 too ...
Didn't try NVIDIA driver yet but 13.0 had no problems with the same monitor, similar Card and nv driver.
Any hints ?
 
Old 06-04-2010, 10:21 AM   #2
disturbed1
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Have you tried the nouveau driver? With a 9500 though, you'd get the best results with the Nvidia binary driver, and gain VDPAU decoding.

There was an upgrade of Xorg and friends from 13.0 to 13.1, which might account for the difference you're experiencing.
 
Old 06-04-2010, 11:05 AM   #3
knudfl
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It is quite simple : You can just reuse the file
/etc/X11/xorg.conf from Slackware 12.x

..
 
Old 06-06-2010, 05:30 AM   #4
linq
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Registered: May 2010
Location: Russia
Distribution: Slackware 1.0,...64-14.2..
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Original Poster
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Solved

Thanks to https://wiki.ubuntu.com/X/Troubleshooting/Resolution

It was KVM, apparently blocking EDID. Without it everything went smoothly, otherwise the x server had to set 'fuzzy' 1024x768.

With KVM present though neither Option "UseEDID" "FALSE" in the device section of xorg.conf nor video=VGA2:1280x1024 kernel parameter was useful ...

I have then noticed this in the Xorg.0.log:

(II) NV(0): Output VGA1 using monitor section Monitor0
(II) NV(0): Output DVI1 has no monitor section
(II) NV(0): Output VGA2 has no monitor section
(II) NV(0): Output DVI0 has no monitor section
...
(II) NV(0): Output VGA1 disconnected
(II) NV(0): Output DVI1 disconnected
(II) NV(0): Output VGA2 connected
(II) NV(0): Output DVI0 disconnected

So I was using VGA2 (analog) output but xorg.conf had only one output-Monitor setting. My H-V settings were not used and xserver switched to 1024x768

Adding just this:

Option "Monitor-VGA2" "Monitor0"

to the Device section of xorg.conf now allows me to run at 1280x1024 even with the KVM attached.

and

(II) NV(0): Output VGA1 using monitor section Monitor0
(II) NV(0): Output DVI1 has no monitor section
(II) NV(0): Output VGA2 using monitor section Monitor0
(II) NV(0): Output DVI0 has no monitor section

(II) NV(0): Using user preference for initial modes
(II) NV(0): Output VGA2 using initial mode 1280x1024

Last edited by linq; 06-06-2010 at 05:32 AM.
 
  


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