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Bug#617639: marked as done ([linux-2.6] linux-image-2.6.32-5-amd64: After connecting a USB stick, the screen becomes black or blinking sometimes)

Your message dated Tue, 22 Mar 2011 02:09:39 +0000
with message-id <1300759779.26693.356.camel@localhost>
and subject line Re: Bug#617639: possible electrical fault
has caused the Debian Bug report #617639,
regarding [linux-2.6] linux-image-2.6.32-5-amd64: After connecting a USB stick, the screen becomes black or blinking sometimes
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
617639: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=617639
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-2.6
Version: 2.6.32-5
Severity: important

--- Please enter the report below this line. ---

Sometimes when I connect a USB stick, I got a black screen or a blinking screen a little like with a TV when the reception is bad.
When the screen is blinking, I found that I was still able to switch to virtual terminal and here also the screen is blinking.
It is also still possible to reboot with the magic keys.
Here is what I found in /var/log/messages :

Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.407370] usb 2-1.3: new high speed USB device using ehci_hcd and address 4
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.475290] ata2.00: exception Emask 0x10 SAct 0x0 SErr 0x40d0002 action 0xe frozen
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.475293] ata2.00: ST_FIRST: !(DRQ|ERR|DF)
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.475297] ata2.00: SError: { RecovComm PHYRdyChg CommWake 10B8B DevExch }
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.475300] sr 1:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.475309] ata2.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.475310]          res 00/01:01:01:14:eb/00:00:00:00:00/00 Emask 0x12 (ATA bus error)
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.475325] ata2.00: hard resetting link
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.501834] usb 2-1.3: New USB device found, idVendor=0951, idProduct=1607
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.501837] usb 2-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.501839] usb 2-1.3: Product: DataTraveler 2.0
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.501841] usb 2-1.3: Manufacturer: Kingston
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.501842] usb 2-1.3: SerialNumber: 0013729945E6A9C0A6C6030B
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.501921] usb 2-1.3: configuration #1 chosen from 1 choice
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.502279] scsi5 : SCSI emulation for USB Mass Storage devices
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.502410] usb-storage: device found at 4
Mar  8 13:47:53 EIFRWSE00160 kernel: [19027.502412] usb-storage: waiting for device to settle before scanning
Mar  8 13:47:53 EIFRWSE00160 kernel: [19028.197857] ata2.01: hard resetting link
Mar  8 13:47:55 EIFRWSE00160 kernel: [19029.224162] ata2.01: failed to resume link (SControl 0)
Mar  8 13:47:55 EIFRWSE00160 kernel: [19029.379943] ata2.00: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Mar  8 13:47:55 EIFRWSE00160 kernel: [19029.379969] ata2.01: SATA link down (SStatus 0 SControl 0)
Mar  8 13:47:55 EIFRWSE00160 kernel: [19029.379983] ata2.01: link offline, clearing class 3 to NONE
Mar  8 13:47:55 EIFRWSE00160 kernel: [19029.404140] ata2.00: configured for UDMA/100
Mar  8 13:47:55 EIFRWSE00160 kernel: [19029.404693] ata2: EH complete
Mar  8 13:47:58 EIFRWSE00160 kernel: [19032.490715] usb-storage: device scan complete
Mar  8 13:47:58 EIFRWSE00160 kernel: [19032.491302] scsi 5:0:0:0: Direct-Access     Kingston DataTraveler 2.0 8.20 PQ: 0 ANSI: 2
Mar  8 13:47:58 EIFRWSE00160 kernel: [19032.491690] sd 5:0:0:0: Attached scsi generic sg2 type 0
Mar  8 13:47:58 EIFRWSE00160 kernel: [19032.492547] sd 5:0:0:0: [sdb] 7825408 512-byte logical blocks: (4.00 GB/3.73 GiB)
Mar  8 13:47:58 EIFRWSE00160 kernel: [19032.493403] sd 5:0:0:0: [sdb] Write Protect is off
Mar  8 13:47:58 EIFRWSE00160 kernel: [19032.493406] sd 5:0:0:0: [sdb] Mode Sense: 23 00 00 00
Mar  8 13:47:58 EIFRWSE00160 kernel: [19032.493407] sd 5:0:0:0: [sdb] Assuming drive cache: write through
Mar  8 13:47:58 EIFRWSE00160 kernel: [19032.495732] sd 5:0:0:0: [sdb] Assuming drive cache: write through
Mar  8 13:47:59 EIFRWSE00160 kernel: [19032.495735]  sdb: sdb1
Mar  8 13:47:59 EIFRWSE00160 kernel: [19033.582612] sd 5:0:0:0: [sdb] Assuming drive cache: write through
Mar  8 13:47:59 EIFRWSE00160 kernel: [19033.582615] sd 5:0:0:0: [sdb] Attached SCSI removable disk
Mar  8 13:47:59 EIFRWSE00160 kernel: [19034.053114] FAT: utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
Mar  8 13:48:05 EIFRWSE00160 kernel: [19039.730382] usb 2-1.3: USB disconnect, address 4
Mar  8 13:48:09 EIFRWSE00160 acpid: client 1361[0:0] has disconnected
Mar  8 13:48:13 EIFRWSE00160 acpid: client connected from 1361[0:0]
Mar  8 13:48:13 EIFRWSE00160 acpid: 1 client rule loaded
Mar  8 13:48:24 EIFRWSE00160 acpid: client 1361[0:0] has disconnected
Mar  8 13:48:34 EIFRWSE00160 acpid: client connected from 1361[0:0]
Mar  8 13:48:34 EIFRWSE00160 acpid: 1 client rule loaded
Mar  8 13:48:50 EIFRWSE00160 kernel: [19084.296554] SysRq : Keyboard mode set to system default
Mar  8 13:48:50 EIFRWSE00160 kernel: [19085.079110] SysRq : Emergency Sync
Mar  8 13:48:50 EIFRWSE00160 kernel: [19085.079385] Emergency Sync complete
Mar  8 13:48:51 EIFRWSE00160 kernel: [19085.638142] SysRq : This sysrq operation is disabled.
Mar  8 13:48:52 EIFRWSE00160 kernel: [19086.372875] SysRq : This sysrq operation is disabled.
Mar  8 13:48:53 EIFRWSE00160 kernel: [19087.187472] SysRq : Emergency Remount R/O


regards
Jonas


--- System information. ---
Architecture: amd64
Kernel:       Linux 2.6.32-5-amd64

Debian Release: 6.0
  900 stable          security.debian.org 
  900 stable          ftp.ch.debian.org 
  800 unstable        ftp.ch.debian.org 
  700 experimental    ftp.ch.debian.org 

--- Package information. ---
Package's Depends field is empty.

Package's Recommends field is empty.

Package's Suggests field is empty.

--- End Message ---
--- Begin Message --- 
On Mon, 2011-03-21 at 21:11 +0100, Jonas Baggett wrote:
> > This sounds like an electrical fault.  Does it happen with different
> > ports?  Different USB devices?  If the system is a laptop, does it
> > depend on whether it is running on mains power or battery?
> 
> My system is a PC tower. Yes it can be an electrical fault because when
> I plug in my USB stick there was  sometimes a static electricity
> discharge between my fingers and the audio jacks if they are too close
> to them. It should be related to the clothes I wear.
[...]

Or the computer case is not connected to the ground plane on the
motherboard.  Anyway, this does explain the problem so I'm closing the
bug.

Ben.

-- 
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.

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