Ubuntu so buggy these days?

[thinh4]

Hi,

I installed ubuntu 14.04 2 weeks ago, and it constantly gave me the screen flicking about 2-3 times a day. The only way is then to press the power button off and on again. This loses my unsaved work... Then I upgraded to ubuntu 15.04 last week. Not much better outcome ... if I leave the machine overnight, next morning it doesn't respond.. even though I close all my applications just for sure.

This morning when I came in, the screen was flickering, I did a power off/on again. Then it gave me a "Filesystem root has only 0 bytes disk space remaining",... i then tried du unsuccessfully as it can't even do that. I had to shut it down and turned it on again.. then it's ok now...

Are they any fixes available for these please?

Regards
Thinh

[Vladlenin5000]

Hi and welcome.

First of all, please post details about your hardware. Nobody can even start thinking about troubleshooting without a frame of reference.
IMO, and without further details, the symptoms strongly suggest failing hardware.

[thinh4]

Hi,

Thank you for your reply. I am not really sure how to get the hardware in ubuntu. So did a google and type in lspci -nnk and here is what I've got

 lspci -nnk 
00:00.0 Host bridge [0600]: Intel Corporation 4th Gen Core Processor DRAM Controller [8086:0c00] (rev 06)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: hsw_uncore
00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: i915
00:03.0 Audio device [0403]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller [8086:0c0c] (rev 06)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: snd_hda_intel
00:14.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI [8086:8c31] (rev 05)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: xhci_hcd
00:16.0 Communication controller [0780]: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 [8086:8c3a] (rev 04)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: mei_me
00:1a.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 [8086:8c2d] (rev 05)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: ehci-pci
00:1b.0 Audio device [0403]: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller [8086:8c20] (rev 05)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 [8086:8c10] (rev d5)
	Kernel driver in use: pcieport
00:1c.2 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 [8086:8c14] (rev d5)
	Kernel driver in use: pcieport
00:1d.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 [8086:8c26] (rev 05)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: ehci-pci
00:1f.0 ISA bridge [0601]: Intel Corporation B85 Express LPC Controller [8086:8c50] (rev 05)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: lpc_ich
00:1f.2 SATA controller [0106]: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] [8086:8c02] (rev 05)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: ahci
00:1f.3 SMBus [0c05]: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller [8086:8c22] (rev 05)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 04)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: r8169
02:00.1 Serial controller [0700]: Realtek Semiconductor Co., Ltd. Device [10ec:816a] (rev 01)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
02:00.2 Serial controller [0700]: Realtek Semiconductor Co., Ltd. Device [10ec:816b] (rev 01)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
02:00.3 IPMI SMIC interface [0c07]: Realtek Semiconductor Co., Ltd. Device [10ec:816c] (rev 01)
	Subsystem: Acer Incorporated [ALI] Device [1025:090c]
	Kernel driver in use: ipmi_si

[SeijiSensei]

00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06)

I have this same controller on the machine I'm using right now. I have it connected with HDMI to an HDTV and have never seen any flickering. Is yours connected via HDMI, DVI, or VGA?

[wildmanne39]

Right now this looks like his main issue:

Filesystem root has only 0 bytes disk space remaining

Hopefully this will help.
http://askubuntu.com/questions/62236...ow-to-clear-it
As SeijiSensei posted earlier this seems to be happening a lot.

[Vladlenin5000]

A pretty common hardware configuration, not even the graphics stands out. And not much issues with ACER desktops that I'm aware of.
I would start by testing the RAM, just in case.

[tgalati4]

Post the output of:

df -h

If /boot is full of old kernels, then you don't have room to apply updates. Yes, there are bugs, but things are generally fixable.

[Vladlenin5000]

Right now this looks like his main issue:

Hopefully this will help.
http://askubuntu.com/questions/62236...ow-to-clear-it
As SeijiSensei posted earlier this seems to be happening a lot.

It's an issue that deserves to be address on its own but I'm not sure about it being the main issue here.
It happened to me once a few months ago - sudden loss of hundreds of GB (single root + swap)* - but no graphical glitches, flickering or freezing, just the usual problems every system with less than 500MB free has (yes, I let it go that far).
I know what caused it - some shady software for flashing Rockchip devices (tablets, etc.) - but I still don't know why.

[thinh4]

Thank you all for your replies.

I have 12G of RAM. And I am using DP instead of HDMI or VGA.. I had dual monitors..but I took one off recently because of the flickering issues.. I have 1T disk space.. and only installed less than 50G worth of stuff... this morning when I tried df -h . it showed that 100% usage for "/". As I said, I restarted the box.. and it went away... so main issue now is the flickering screen. Touch wood, it has not happened today yet.

Thanks & regards
Thinh

[thinh4]

The screen just flickered again and had to power off. This morning when I came in and the machine didn't respond at all..was waiting for the password screen to come up and type a letter at a time... any more advices please?

Thanks
Thinh