Bug 92433

Summary:	Option NoAccel needs VT switch to render
Product:	xorg	Reporter:	Andy Furniss <adf.lists>
Component:	Driver/AMDgpu	Assignee:	xf86-video-ati maintainers <xorg-driver-ati>
Status:	RESOLVED FIXED	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium
Version:	git
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

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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