I am running, "SPARKYLINUX" -- Debian sid 64-bit, without any issues for a long time..
But since recently, I have had random PC freezes from time to time, once I encountered the black display while starting up Thunderbird on a regular basis, I recorded it with the GTK-recordmydesktop @ https://sourceforge.net/projects/recordmydesktop/
Here is the screen-record video showing random black at 00:03 seconds at Thunderbird launch..
https://www.youtube.com/watch?v=YxqEvt2crMI
Here are some terminal-outputs which might help:
uname -a:
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Linux ik--pc 4.9.0-8.1-liquorix-amd64 #1 ZEN SMP PREEMPT liquorix 4.9-9 (2017-02-07) x86_64 GNU/Linux
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root@ik--pc:/home/ik# lspci
00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 10)
00:02.0 VGA compatible controller: Intel Corporation 82G33/G31 Express Integrated Graphics Controller (rev 10)
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 01)
00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #1 (rev 01)
00:1d.1 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #2 (rev 01)
00:1d.2 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #3 (rev 01)
00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #4 (rev 01)
00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01)
00:1f.2 IDE interface: Intel Corporation NM10/ICH7 Family SATA Controller [IDE mode] (rev 01)
00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller (rev 01)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 01)
I have a sneaky feeling that probably my integrated video has gone kaput ??
Thanks in Advance for needed help..