[Xnv-team] [OpenIndiana Distribution - Bug #1135] intel driver stops updating the screen sometimes

[illumos project]

Issue #1135 has been updated by Albert Lee.

File Xorg.0.log.old added

Julian Wiesener wrote:
> Hi,
> 
> can you attach the Xorg.0.log, thus we see what exact Hardware is involved?
> 
> I've little doubts, that the problem is new, i have similar issues from time to time (somtimes once per week, somtimes after a few months), for a long time (<osol-130). 
> 
> Please do the Following Test when it's hanging next time:
> remote login from ssh, restart gdm. Look out for changes on the screen (may be it just appears garbage, however Xorg starts just fine).
> If the Screen is not working after restart, try a fast-reboot using init 6.
> 
> In the case i have here, even an init 6 does not solve the problem, i see something from the console thru a pixel puzzel, but to get a really working screen again i've to power off.
> 
> Using google-maps may be a way to trigger the issue, i assume everything that does much 2d graphic would.

I'm probably experiencing a different problem; it's much harder to reproduce and the symptoms aren't quite the same. The X server continues to update the cursor (pointer) correctly when I move the mouse/touchpad, but the rest of the screen remains static. I enabled virtual consoles and can VT switch to the first console and back to X. The X sceen is then grey, while the cursor is still visible and working on the laptop screen but not on the external monitor now.


The X server restarts correctly if I restart GDM from the console.

I just noticed that the driver actually logs an error trying to set up the mappings when I VT switch back, it's in the attached log.

By the way, I understand our Intel DRM (_i915_) has GEM support but it seems to be disabled at build time in the Xorg driver? Do you know why?
----------------------------------------
Bug #1135: intel driver stops updating the screen sometimes
https://www.illumos.org/issues/1135

Author: Albert Lee
Status: New
Priority: Normal
Assignee: OI XNV
Category: XNV (X Window System)
Target version: 
Difficulty: Hard
Tags: needs-triage


Since upgrading from 148a to our current 151 prerelease, I've had my X desktop appear to freeze once every few days, although the hardware cursor would continue to update on top of it. I had to restart the X server each time this happens. I'm using the intel driver on a "IGDNG_M": @pci bus 0x0000 cardnum 0x02 function 0x00: vendor 0x8086 device 0x0046
 Intel Corporation Core Processor Integrated Graphics Controller@ embedded in a U3400 CULV processor.

Nothing is written to the X server log at the time.


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