XRANDR outputs

Russell Shaw rjshaw at netspace.net.au
Mon Oct 14 23:53:25 PDT 2013

After a system upgrade, xrandr no longer reports two monitors connected to the 
video card. I get:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 400, current 1600 x 1200, maximum 1600 x 1200
default connected 1600x1200+0+0 0mm x 0mm
    1600x1200       0.0*
    1280x1024       0.0
    1152x864        0.0
    1024x768        0.0
    800x600         0.0
    640x480         0.0
    720x400         0.0

Both monitors (one DVI, other VGA) are showing the same image, but the second 
monitor can't handle 1600x1200.

On debian/unstable i have:

libdrm-radeon1:i386  2.4.46-3  i386
Userspace interface to radeon-specific kernel DRM services -- runtime

xserver-xorg-video-radeon  1:7.2.0-1+b2  i386
X.Org X server -- AMD/ATI Radeon display driver

xrandr 1.4

lspci -vv

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV610 
[Radeon HD 2400 PRO/XT] (prog-if 00 [VGA controller])
         Subsystem: Gigabyte Technology Co., Ltd Device 2190
         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
         Latency: 0, Cache Line Size: 32 bytes
         Interrupt: pin A routed to IRQ 11
         Region 0: Memory at d0000000 (64-bit, prefetchable) [size=256M]
         Region 2: Memory at fe8e0000 (64-bit, non-prefetchable) [size=64K]
         Region 4: I/O ports at c000 [size=256]
         Expansion ROM at fe8c0000 [disabled] [size=128K]
         Capabilities: [50] Power Management version 3
                 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA 
                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
         Capabilities: [58] Express (v1) Legacy Endpoint, MSI 00
                 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 
                         ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
                 DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
                         RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
                         MaxPayload 128 bytes, MaxReadReq 128 bytes
                 DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
                 LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Latency 
L0 <64ns, L1 <1us
                         ClockPM- Surprise- LLActRep- BwNot-
                 LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
                         ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                 LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+ 
DLActive- BWMgmt- ABWMgmt-
         Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
                 Address: 0000000000000000  Data: 0000
         Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 
Len=010 <?>

More information about the xorg mailing list