Summary: | [965gm] glitches | ||
---|---|---|---|
Product: | DRI | Reporter: | Mads Villadsen <maxx> |
Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> |
Status: | CLOSED WONTFIX | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> |
Severity: | normal | ||
Priority: | low | CC: | intel-gfx-bugs |
Version: | XOrg git | ||
Hardware: | Other | ||
OS: | All | ||
Whiteboard: | |||
i915 platform: | I965GM | i915 features: |
Description
Mads Villadsen
2015-06-09 17:03:29 UTC
Did an update to xorg-x11-drv-intel-2.99.917-11.20150603.fc22.x86_64 and the problem is still there. In the beginning it appears mostly in the top of windows but never in the Gnome header. If a window starts out maximized and is then resized smaller the graphics get more corrupt. With updates to driver and kernel the problem seems to be practically gone. I have still seen image corruption in for instance Firefox under certain circumstances when resizing, maximing, restoring, dragging, scrolling window and opening multiple tabs. Not easy to reproduce. xorg-x11-drv-intel-2.99.917-11.20150603.fc22.x86_64 kernel-4.0.5-300.fc22.x86_64 Hmm, so I got out my t61 today and being playing about with different kernels + xf86-video-intel.git to see if I can replicate this. Sadly nothing with LinuxMint. My presumption here is that it is mmap(wc) playing up. diff --git a/src/sna/kgem.c b/src/sna/kgem.c index 0178df7..11e80f9 100644 --- a/src/sna/kgem.c +++ b/src/sna/kgem.c @@ -83,7 +83,7 @@ search_snoop_cache(struct kgem *kgem, unsigned int num_pages, unsigned flags); #define DBG_NO_FAST_RELOC 0 #define DBG_NO_HANDLE_LUT 0 #define DBG_NO_WT 0 -#define DBG_NO_WC_MMAP 0 +#define DBG_NO_WC_MMAP 1 #define DBG_NO_BLT_Y 0 #define DBG_NO_SCANOUT_Y 0 #define DBG_NO_DETILING 0 is perhaps the simplest way of testing. So I should apply that patch and recompile the intel driver? Yes, change that line in xf86-video-intel.git and see if that confirms mmap(wc) is the sore point. That seems to have made a big difference so far but it is difficult to test since it only appears sporadically. (In reply to Mads Villadsen from comment #7) > That seems to have made a big difference so far but it is difficult to test > since it only appears sporadically. timeout, closing this old bug w/o further activity assuming it should be fixed by now. If this still occurring, please ensure that you use latest kernel, xf86-video-intel version - alternatively you may consider to use Glamor/modesetting with latest Mesa version - and the fill a new bug with gpu error dump and kernel log. |
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