On Mon, Feb 9, 2015 at 6:06 PM, RafaÅ MiÅecki <zajec5 at gmail.com> wrote: > My notebook Samsung NP700G7A-S01PL was working stable for more than 2 years. > I was using 3.11, 3.17, 3.18, 3.19 (since rc1) and many more successfully. > First hang has happened on 2015-02-08 (23:30) with 3.19-rc5 I was > using for 3 weeks. > > So what I'm seeing are two possibly related problems: > > 1) Random hangs > I don't have to be doing anything unusual. A single display, no UVD, > just writing some code in kate. And then it randomly happens. My > screen goes all white or green vertical lines or blue vertical lines. > I can't use/access my machine, sound goes into a loop (last second). > Sometimes it happens after hours, sometimes 30 minutes, sometimes few > minutes. So far I got 5-7 hangs like this. > > 2) Init problems > Unfortunately rebooting does not always help. Even cold boot (removing > power & battery, keeping power button pressed for few seconds) isn't > helpful. > a) First I get UVD init errors: > *ERROR* UVD not responding, trying to reset the VCPU!!! > b) Then machine hangs after displaying "pitch is 7680" > I've tracked it to be somewhere near register_framebuffer > (see attached bad.txt) > > As long as I don't use radeon (booting with "nomodeset") it works stable. > > I tested my RAM with MemTest86 (one pass, took 1 hour), no errors, CPU > temperature didn't exceed 70 degrees. > > This evening as the last hope I installed fglrx. It hangs my machine > as well with following messages: > [ 36.472526] console [netcon0] enabled > [ 36.473106] netconsole: network logging started > [ 48.192215] fglrx_pci 0000:01:00.0: irq 56 for MSI/MSI-X > [ 48.192726] <6>[fglrx] Firegl kernel thread PID: 1481 > [ 48.192833] <6>[fglrx] Firegl kernel thread PID: 1482 > [ 48.192954] <6>[fglrx] Firegl kernel thread PID: 1483 > [ 48.193077] <6>[fglrx] IRQ 56 Enabled > [ 48.240118] <6>[fglrx] Reserved FB block: Shared offset:0, size:1000000 > [ 48.240122] <6>[fglrx] Reserved FB block: Unshared offset:3fab4000, > size:4000 > [ 48.240124] <6>[fglrx] Reserved FB block: Unshared offset:3fab8000, > size:548000 > [ 48.240126] <6>[fglrx] Reserved FB block: Unshared offset:7fff3000, > size:d000 > However if I drop fglrx.ko and just use Xorg driver fglrx_drv.so it > works stable. > > Any ideas? Is GPU on my motherboard just dying? :|
If it just started at some point in time regardless of the sw stack you are running, then I suspect I hw problem. If you can run an older known-good stack and it works fine, then it's probably a sw problem. If you disable the fglrx kernel module, you are basically running a display only driver (no accel, etc.). Alex
