Feb 3, 2013

openSUSE Forums: Unable to change OpenSUSE 12.2 screen resolution to 1680x1050 to suit monitor SyncMaster 226BW

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Unable to change OpenSUSE 12.2 screen resolution to 1680x1050 to suit monitor SyncMaster 226BW
Feb 4th 2013, 05:24

I have just got a new computer from DNUK pre-installed with OpenSUSE 12.2

It has a AMD A4-3400 APU with Radeon(tm) HD Graphics

Code:

13: PCI 01.0: 0300 VGA compatible controller (VGA)
  [Created at pci.319]
  Unique ID: vSkL.AyWEYnLY+H7
  SysFS ID: /devices/pci0000:00/0000:00:01.0
  SysFS BusID: 0000:00:01.0
  Hardware Class: graphics card
  Model: "ATI VGA compatible controller"
  Vendor: pci 0x1002 "ATI Technologies Inc"
  Device: pci 0x9644
  SubVendor: pci 0x1849 "ASRock Incorporation"
  SubDevice: pci 0x9640
  Memory Range: 0xc0000000-0xcfffffff (ro,non-prefetchable)
  I/O Ports: 0xf000-0xf0ff (rw)
  Memory Range: 0xfef00000-0xfef3ffff (rw,non-prefetchable)
  IRQ: 18 (62971 events)
  I/O Ports: 0x3c0-0x3df (rw)
  Module Alias: "pci:v00001002d00009644sv00001849sd00009640bc03sc00i00"
  Driver Info #0:
    Driver Status: radeon is active
    Driver Activation Cmd: "modprobe radeon"
  Config Status: cfg=no, avail=yes, need=no, active=unknown

I am at moment using the VGA output until get HDMI to DVI conversion cable.

I want to use with my existing Monitor which is Samsung SyncMaster 226BW
which has screen resolution of 1680x 1050

But output is now at 1400x1050
and I have not manage to change it yet.

I remember having similar problems with previous version of OpenSUSE on previous PC (before switching to PCLinuxOS because of problems)
I have looked at other posts and I tried adding modeline to one of files in xorg dir from cvt but although option appears in 'Size & Orientation' not able to use just flips back single resolution offered.

It starts of with:
Code:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1400 x 1050, current 1400 x 1050, maximum 1400 x 1050
default connected 1400x1050+0+0 0mm x 0mm
  1400x1050      77.0*

Code:

cvt 1680 1050
# 1680x1050 59.95 Hz (CVT 1.76MA) hsync: 65.29 kHz; pclk: 146.25 MHz
Modeline "1680x1050_60.00"  146.25  1680 1784 1960 2240  1050 1053 1059 1089 -hsync +vsync

Code:

gtf 1680 1050 60
  # 1680x1050 @ 60.00 Hz (GTF) hsync: 65.22 kHz; pclk: 147.14 MHz
  Modeline "1680x1050_60.00"  147.14  1680 1784 1968 2256  1050 1051 1054 1087  -HSync +Vsync

See follow up post for as I try to add.


I can find sax2, xorgconfig and xorg.conf looks unused even though directory there and I added modeline to one of files in it.

uname -a gives:
Code:

Linux linux-no1g 3.4.11-2.16-desktop #1 SMP PREEMPT Wed Sep 26 17:05:00 UTC 2012 (259fc87) x86_64 x86_64 x86_64 GNU/Linux
The OpenSUSE 12.2 KDE bootable livecd give correct VGA resolution of 1680x 1050 with may other resolution options under VGA.
I may post screen shoot from it in a follow up, and try examine what is set on it and see if can copy over.

But if you can give any help or pointers in meantime let me know.
Or if need any more info from me to help.

Would reinstall help? Would have option to set up then?
Seem overkill when should be able to change existing set up.
Or rescue option?
What is livecd detecting and changing?

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