[Bug 49042] New: Ugly corrupted background when starting X / switching from/to X VTs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=49042

             Bug #: 49042
           Summary: Ugly corrupted background when starting X / switching
                    from/to X VTs
    Classification: Unclassified
           Product: xorg
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: h.judt at gmx.at
         QAContact: xorg-team at lists.x.org


When X starts up, one can see an ugly background for the time X is loading. The
same ugly background appears again when switching to another vt (X->console,
console->X, X->X, but not console->console).

Expected results:
* black background while performing any of the mentioned actions

Actual results:
* black background (it should be completely black actually)
* white diagonal "lines" or actually white blocks,
  similar to something represented by the following ascii graphics
--------------------------------------------------
-                                                -
-                                            www -
-                                         www    -
-                                      www       -
-                                   www          -
-                                                -
-                              www               -
-                           www                  -
-                        www                     -
-                     www                        -
-                 www                  www       -
-             www                  www           -
-         www                  www               -
-     www                 www                    -
- www                 www                        -
-                                                -
--here remain some other contents of another vt --
--------------------------------------------------


lspci output:
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV630
[Radeon HD 3600 Series] (prog-if 00 [VGA controller])
        Subsystem: Micro-Star International Co., Ltd. Device 1260
        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: 64 bytes
        Interrupt: pin A routed to IRQ 41
        Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 2: Memory at f0100000 (64-bit, non-prefetchable) [size=64K]
        Region 4: I/O ports at 2100 [size=256]
        [virtual] Expansion ROM at f0120000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 3
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [58] Express (v2) Legacy Endpoint, MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1
unlimited
                        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 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 5GT/s, Width x16, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Not Supported, TimeoutDis-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-,
Selectable De-emphasis: -6dB
                         Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
                         EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
        Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000fee0100c  Data: 4159
        Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
        Kernel driver in use: radeon

Linux kernel version: 3.3

Mesa, XServer, libdrm,... are all current git versions

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