Hello community.
Now I know this can be a bit of a tricky one to pin down as many things can cause a system to freeze but I'll tell you what I know and maybe you can point me in the right direction.
The screen freezes apart for the cursor which I can still move and caps lock light will go on and off. It often happens when I am using iceweasel, (but also konqueror and chromium) when I am websites with lots of flash and javascript i.e facebook but I has frozen when no browsers is open, so I don't think its a javascript problem.
I can ctrl+alt+F1 and restartx but it won't respond to much else, I've heard of a similar problem with the nvidia driver but I'm not using an nvidia graphics card.
Any Ideas?
btw i'm running a Lenovo B550
system Computer
/0 bus Motherboard
/0/0 memory 3891MiB System memory
/0/1 processor Intel(R) Core(TM)2 Duo CPU T6570 @ 2.10GHz
/0/100 bridge Mobile 4 Series Chipset Memory Controller Hub
/0/100/2 display Mobile 4 Series Chipset Integrated Graphics Controller
/0/100/2.1 display Mobile 4 Series Chipset Integrated Graphics Controller
/0/100/1a bus 82801I (ICH9 Family) USB UHCI Controller #4
/0/100/1a/1 usb2 bus UHCI Host Controller
/0/100/1a.1 bus 82801I (ICH9 Family) USB UHCI Controller #5
/0/100/1a.1/1 usb3 bus UHCI Host Controller
/0/100/1a.2 bus 82801I (ICH9 Family) USB UHCI Controller #6
/0/100/1a.2/1 usb4 bus UHCI Host Controller
/0/100/1a.7 bus 82801I (ICH9 Family) USB2 EHCI Controller #2
/0/100/1a.7/1 usb1 bus EHCI Host Controller
/0/100/1b multimedia 82801I (ICH9 Family) HD Audio Controller
/0/100/1c bridge 82801I (ICH9 Family) PCI Express Port 1
/0/100/1c.1 bridge 82801I (ICH9 Family) PCI Express Port 2
/0/100/1c.2 bridge 82801I (ICH9 Family) PCI Express Port 3
/0/100/1c.2/0 network BCM4312 802.11b/g LP-PHY
/0/100/1c.3 bridge 82801I (ICH9 Family) PCI Express Port 4
/0/100/1c.5 bridge 82801I (ICH9 Family) PCI Express Port 6
/0/100/1c.5/0 eth0 network NetLink BCM5906M Fast Ethernet PCI Express
/0/100/1d bus 82801I (ICH9 Family) USB UHCI Controller #1
/0/100/1d/1 usb5 bus UHCI Host Controller
/0/100/1d/1/2 input USB OPTICAL MOUSE
/0/100/1d.1 bus 82801I (ICH9 Family) USB UHCI Controller #2
/0/100/1d.1/1 usb6 bus UHCI Host Controller
/0/100/1d.2 bus 82801I (ICH9 Family) USB UHCI Controller #3
/0/100/1d.2/1 usb7 bus UHCI Host Controller
/0/100/1d.7 bus 82801I (ICH9 Family) USB2 EHCI Controller #1
/0/100/1d.7/1 usb8 bus EHCI Host Controller
/0/100/1d.7/1/3 multimedia Lenovo EasyCamera
/0/100/1e bridge 82801 Mobile PCI Bridge
/0/100/1f bridge ICH9M LPC Interface Controller
/0/100/1f.2 storage 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]
/0/100/1f.3 bus 82801I (ICH9 Family) SMBus Controller
/0/100/1f.6 generic 82801I (ICH9 Family) Thermal Subsystem
/0/2 scsi0 storage
/0/2/0.0.0 /dev/sda disk 320GB WDC WD3200BEVT-2
/0/2/0.0.0/1 /dev/sda1 volume 250GiB EXT4 volume
/0/2/0.0.0/2 /dev/sda2 volume 23GiB EXT4 volume
/0/2/0.0.0/3 /dev/sda3 volume 23GiB EXT4 volume
/0/3 scsi1 storage
/0/3/0.0.0 /dev/cdrom disk DVDRAM GT30N
When the display freezes, does the audio continue normally?
yes, just tested that, the audio continues.
So the issue is (probably) the graphics driver, or chip, or elsewhere on the motherboard if it is hardware. The flashing keyboard light suggests a kernel panic, but I would not expect audio to continue or Ctrl-Alt-F1 to work in that case. Let's have a look at the output of inxi -G
Hi, sorry I don't think I made it clear before, the keyboard light does not flash but the caps lock light will respond when pressed,
$ inxi -G
Graphics: Card: Intel Mobile 4 Series Integrated Graphics Controller
Display Server: X.Org 1.17.2 drivers: (unloaded: fbdev,vesa) Resolution: 1366x768@60.04hz
GLX Renderer: Mesa DRI Mobile Intel GM45 Express GLX Version: 2.1 Mesa 10.5.9
thanks,
OK then I did misunderstand and there's no kernel panic. That is why music and mouse are still working.
I have no crisp answer or fix to offer -- there are numerous open bugs (https://bugs.debian.org/cgi-bin/pkgreport.cgi?pkg=xserver-xorg-video-intel;dist=unstable) in Debian and I did not read through all of them, but "freezing while scrolling" is definitely mentioned, so I would suppose you are suffering the same as those folks.
thanks for pointing me on the right direction, it does look similar to the scrolling bug reported there will check some more so I guess its probably an xserver problem.