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Bug 294861 - X display resolution is set to 800x600
X display resolution is set to 800x600
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-nv (Show other bugs)
All Linux
low Severity medium
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Assigned To: Adam Jackson
Depends On:
  Show dependency treegraph
Reported: 2007-09-18 11:12 EDT by Pavel Rosenboim
Modified: 2008-02-12 10:28 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2008-02-12 10:28:24 EST
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Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:

Attachments (Terms of Use)
X log (36.21 KB, text/plain)
2007-10-03 12:55 EDT, Pavel Rosenboim
no flags Details

  None (edit)
Description Pavel Rosenboim 2007-09-18 11:12:24 EDT
Description of problem:
X display resolution is set to 800x600 instead of native (for my LCD display)

During graphical boot, the resolution is correct, but login screen is displayed
in 800x600 mode. Sometimes, killing X server causes it to restart in correct mode.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
Actual results:

Expected results:

Additional info:

# Xorg configuration created by system-config-display

Section "ServerLayout"
	Identifier     "single head configuration"
	Screen      0  "Screen0" 0 0
	InputDevice    "Keyboard0" "CoreKeyboard"

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "us"
	Option	    "XkbVariant" "intl"

Section "Monitor"
	Identifier   "Monitor0"
	ModelName    "LCD Panel 1280x1024"
	HorizSync    31.5 - 67.0
	VertRefresh  50.0 - 75.0
	Option	    "dpms"

Section "Device"
	Identifier  "Videocard0"
	Driver      "nv"

Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	Monitor    "Monitor0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
Comment 1 Adam Jackson 2007-09-27 16:26:54 EDT
Can you attach the X log from starting in 800x600 please?
Comment 2 Pavel Rosenboim 2007-10-03 12:55:08 EDT
Created attachment 214821 [details]
X log
Comment 3 Adam Jackson 2007-10-04 10:54:03 EDT
Are you starting X with an external monitor attached?  The nv driver isn't
capable of multihead, and will get confused if you try.
Comment 4 Pavel Rosenboim 2007-10-04 13:46:14 EDT
No. Just one monitor.
Comment 5 Dave Airlie 2007-10-10 21:06:41 EDT
have you plugged in both DVI and VGA cables into the card?

for some reason it is detecting a crt connected..
Comment 6 Pavel Rosenboim 2007-10-11 02:36:01 EDT
No. Monitor is always connected with VGA cable. I never tried DVI connection.
Comment 7 Adam Jackson 2007-10-11 11:42:41 EDT
Oh, I get it.  It really is connected analog, it's just that the monitor is
lying and claiming a digital connection.

The driver almost gets this case right.  It does notice when there's a mismatch
between the analog connector detection and the DDC info, but what it does in
that case is just throws the DDC info away, hence the 800x600 limit.
Comment 8 Adam Jackson 2007-10-11 11:52:42 EDT
Try this scratch build:
Comment 9 Pavel Rosenboim 2007-10-16 02:56:37 EDT
So far, it works.
Comment 10 Adam Jackson 2008-02-12 10:28:24 EST
Yikes, old bug.  Lost the original patch for this, but think I rewrote it correctly.

Built as nv 2.1.6-8.fc9, closing.

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