Hi I'm not certain but I think I faced the same issue when I was enabling atomic on my sandybridge laptop, it was like one of the planes stopped being updated. When I reported it all that time ago I was told atomic was considered unstable and I shouldn't be using it.
Has atomic been switched on recently? Unfortunately the laptop is no longer functional so I can't test any of this out Mike On Sun, 4 Oct 2015 10:32 Martin Steigerwald <mar...@lichtvoll.de> wrote: > Hi Chris, hi Intel graphics developers, > > Am Freitag, 2. Oktober 2015, 16:06:30 CEST schrieb Chris: > > To elaborate on this. The video is frozen to include the clock however I > > can move the mouse cursor around the screen. I can not however switch > > between window desktops. This happened on 28 Sept 2015 after an uptime > > I have seen exactly this issue on ThinkPad T520 with Sandybridge graphics. > > With one exception: At least sometimes I have been able to switch to tty1 > and > do killall -u <affecteduser> to get back to sddm login screen. > > I didn´t do anything about it so far. Driver is running in uxa mode, cause > with sna I experienced hard freezes with mouse freezing and even data > loss. I > lost my GPG public key ring after a hard freeze after a gpg --recv-keys > operation (restored from backup meanwhile). This was at DebConf and a > developer I worked with recommended me to switch from SNA to UXA. And some > time ago I had it that kwin sometimes told me it restarted compositing due > to > a hang in the graphics driver. > > I find freezing issues extremely hard to debug. First off often they happen > when I am not willing to spend even a single minute on them. Second: What > to > do anyway? On a hard freeze, I could try Sys-Rq key combo to sync disk > contents, and I think I may better enable it anyway to avoid data loss in > those situations, and hope that *some* information on *why* the hard freeze > happened still lands in kern.log or Xorg log. On soft freezes I can do > something if I can still switch to tty1. But what? I have no idea what > information I can gather *efficiently* to provide at least a somewhat > meaningful initial bug report within less than 15 to 30 minutes. I don´t > just > want to do *something* in that case, but I want something that has a good > chance on giving a real insight on why the bug is happened and a good hint > at > what can be done to fix it. > > git-bisect is out of question for me for something that happens so > irregularily. It would take an insane amount of time with running kernels > that > are probably way to unstable for production use – as it may include pre-rc1 > kernels - anyway. Even tough I go to the limits on this machine regarding > production use, this is still a production machine and I usually wait till > rc2 > kernels to try out a new kernel. > > So I appreciate any pointers what to *efficiently* do about issues like > this. > In case I miss any documentated bug triaging howto please point me to it. > Ideally some kind of bug-reporting tool would be nice. Just run a script > which > collects all data that can be helpful into a file that I can attach to a > bug > report. > > > That said in general I am really quite happy with the Intel drivers. > > > martin@merkaba:~> phoronix-test-suite system-info > > Phoronix Test Suite v5.2.1 > System Information > > Hardware: > Processor: Intel Core i5-2520M @ 3.20GHz (4 Cores), Motherboard: LENOVO > 42433WG, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 16384MB, > Disk: 300GB INTEL SSDSA2CW30 + 480GB Crucial_CT480M50, Graphics: Intel HD > 3000 > (1300MHz), Audio: Conexant CX20590, Monitor: P24T-7 LED, Network: Intel > 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 > > Software: > OS: Debian unstable, Kernel: 4.3.0-rc3-tp520-btrfstrim+ (x86_64), Desktop: > KDE > Frameworks 5, Display Server: X Server 1.17.2, Display Driver: intel > 2.99.917, > OpenGL: 3.3 Mesa 11.0.2, Compiler: GCC 5.2.1 20150911, File-System: btrfs, > Screen Resolution: 3840x1080 > > lspci -nnv: > > 00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation > Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) > (prog-if 00 [VGA controller]) > Subsystem: Lenovo Device [17aa:21cf] > Flags: bus master, fast devsel, latency 0, IRQ 26 > Memory at f0000000 (64-bit, non-prefetchable) [size=4M] > Memory at e0000000 (64-bit, prefetchable) [size=256M] > I/O ports at 5000 [size=64] > Expansion ROM at <unassigned> [disabled] > Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- > Capabilities: [d0] Power Management version 2 > Capabilities: [a4] PCI Advanced Features > Kernel driver in use: i915 > > Ciao, > -- > Martin > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx >
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