Bug 92433 - Option NoAccel needs VT switch to render
Summary: Option NoAccel needs VT switch to render
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/AMDgpu (show other bugs)
Version: git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
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Depends on:
Blocks:
 
Reported: 2015-10-11 21:59 UTC by Andy Furniss
Modified: 2016-02-19 21:14 UTC (History)
0 users

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Description Andy Furniss 2015-10-11 21:59:06 UTC 
After managing to temporarily bork mesa I noticed that when amdgpu accel fails or (as further testing shows) Option NoAccel is set I get a screen of junk on startx.

I have a TONGA GPU and run git versions of kernel/llvm/libdrm/mesa/ddx. xserver is slightly older.

Switching to a vt and back will get me a working desktop and any actions I have done blindly when on the initial trashed screen will show.

Having never used NoAccel before I can't say whether it has ever worked.
Comment 1 csaba.halasz 2016-02-19 17:50:31 UTC 
Just as a data point, I don't have this problem. Also on tonga (r9 380).
Comment 2 Andy Furniss 2016-02-19 21:14:11 UTC 
You're right, I haven't tried this for some time and it's working for me now.

Different bug noticed with noaccel = glxinfo or glxgears = X segfault.

I'll file a new bug some time as backtrace says nothing and I'm a few commits off various heads.

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