Bug#821761: linux-image-4.5.0-1-amd64: [regression] switching from gdm Xorg vt to normal virtual console corrupts display until reboot

2016-04-22 Thread Paul Wise
Control: reopen -1

On Thu, 2016-04-21 at 13:04 +0800, Paul Wise wrote:

> I will reopen if I see this next time I reboot.

I did a bunch of reboot testing with Linux 4.6 from experimental and on
about two-thirds of the reboots I got the problem occurring. During one
boot where the problem did not occur I stopped gdm and started it again
and the problem occurred again. Any thoughts about debugging this?

-- 
bye,
pabs

https://wiki.debian.org/PaulWise




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Bug#821761: linux-image-4.5.0-1-amd64: [regression] switching from gdm Xorg vt to normal virtual console corrupts display until reboot

2016-04-18 Thread Paul Wise
Package: src:linux
Version: 4.5.1-1
Severity: normal

When I upgraded to linux 4.5.1 I found that switching from a gdm Xorg
vt to normal virtual console corrupts the display until I reboot. The
display corruption is not static and is mostly black with some fuzz
around the sides and sometimes pixels from the gdm vt are in the top of
the display. This happens both with and without an external display
plugged into the VGA port on the laptop. This does not happen with 4.4
but it does happen with 4.6 from experimental. I couldn't find any way
to work around this issue other than a reboot.

-- Package-specific info:
** Kernel log: boot messages should be attached

** Model information
sys_vendor: LENOVO
product_name: 0831CTO
product_version: ThinkPad X201 Tablet
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: 6QET62WW (1.32 )
board_vendor: LENOVO
board_name: 0831CTO
board_version: Not Available

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller 
[8086:0044] (rev 02)
Subsystem: Lenovo Core Processor DRAM Controller [17aa:2193]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- SERR- 

00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor 
Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA 
controller])
Subsystem: Lenovo Core Processor Integrated Graphics Controller 
[17aa:215a]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- 
SERR- TAbort- SERR- TAbort- SERR- TAbort- Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
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 #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit 
Latency L0s <1us, L1 <4us
ClockPM- Surprise- LLActRep+ BwNot- ASPMOptComp-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ 
DLActive- BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- 
Surprise-
Slot #0, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- 
LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- 
Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- 
Interlock-
Changed: MRL- PresDet- LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- 
CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID , PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF 
Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, 
OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
 Transmit Margin: Normal Operating Range, 
EnterModifiedCompliance- ComplianceSOS-
 Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, 
EqualizationComplete-, EqualizationPhase1-
 EqualizationPhase2-, EqualizationPhase3-, 
LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address:   Data: 
Capabilities: [90] Subsystem: Lenovo 5 Series/3400 Series Chipset PCI 
Express Root Port 1 [17aa:2164]
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1c.4 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI 
Express Root Port 5 [8086:3b4a] (rev 06) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- Reset- FastB2B-