[xorg-bugzilla-noise] [Bug 1514] New: monitor resolution/frequency is locked

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Oct 3 09:16:51 UTC 2004

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           Summary: monitor resolution/frequency is locked
           Product: xorg
           Version: 6.8.1
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: Driver/Radeon
        AssignedTo: xorg-bugzilla-noise at freedesktop.org
        ReportedBy: anvil at livna.org
                CC: anvil at livna.org

I'm currently using Fedora Core development tree, which has xorg-x11 6.8.x
package set. The problem is that whatever the choosen resolution the monitor
seems locked in a 1920x1440-ish resolution at a low refresh rate. The root
window is at the choosen resolution, doesnt cover the whole screen and is
located at the left top corner of the screen.

Pressing ctrl-alt-+/- doent help. It does change the root window size, but the
monitor is at the same resolution/frequency.

The same configuration file works very well with X11 6.7.0 (X11 packages from
fedora core 2, installed on the development tree environment)

My hardware is an old AGP Radeon 7200 which has always worked well since radeon
was supported in XFree86. Here is the lspci -vvv output for the card : 

01:05.0 VGA compatible controller: ATI Technologies Inc Radeon R100 QD [Radeon
7200] (prog-if 00 [VGA])
        Subsystem: ATI Technologies Inc Radeon 7000/Radeon
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping+ SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (2000ns min), Cache Line Size 08
        Interrupt: pin A routed to IRQ 201
        Region 0: Memory at f4000000 (32-bit, prefetchable) [size=64M]
        Region 1: I/O ports at d800 [size=256]
        Region 2: Memory at f1800000 (32-bit, non-prefetchable) [size=512K]
        Expansion ROM at f3fe0000 [disabled] [size=128K]
        Capabilities: [58] AGP version 2.0
                Status: RQ=48 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans-
64bit- FW- AGP3- Rate=x1,x2,x4
                Command: RQ=16 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x1
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

Monitor is a 22" Mitsubishi Diamond Plus 230SB. Here is the "kudzu -p -b ddc"
output : 
class: VIDEO
bus: DDC
detached: 0
driver: unknown
desc: "ATI Technologies Inc. RG6"
mem: 32768
class: MONITOR
bus: DDC
detached: 0
driver: unknown
desc: "Mitsubishi Diamond Plus 230SB"
id: MEL4631
horizSyncMin: 30
horizSyncMax: 115
vertRefreshMin: 50
vertRefreshMax: 160
mode: 640x480
mode: 800x600
mode: 1024x768
mode: 1152x864
mode: 1280x1024
mode: 1600x1200
mode: 1792x1344
mode: 1920x1440

This bug as already been filled in redhat bugzilla : 
Configuration file can be found at 
and output Xorg.0.log can be found at 

Feel free to ask me any additionnal detail.        
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