https://bugs.freedesktop.org/show_bug.cgi?id=44800
Bug #: 44800 Summary: Radeon HD 6450 CAICOS screen corruption and kernel crashes Classification: Unclassified Product: DRI Version: unspecified Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: critical Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: marko.kohtala@gmail.com
Created attachment 55597 --> https://bugs.freedesktop.org/attachment.cgi?id=55597 Artefacts in X
I got Radeon HD 6450 1GB DDR3 last fall and have been unable to use it.
I currently run fairly recent 32-bit Debian versions on top of 64-bit vanilla kernel 3.2.1 (currently with minor patch to makefile and a debug output patch https://bugs.freedesktop.org/attachment.cgi?id=53428). I've tried with 32-bit kernel and some older kernels without noticing any difference.
I've tried installing Windows and ran some OpenCL tests. All worked fine so I'd expect the hardware is working correctly.
I tried if kernel options iomem=off mem=2G would help. They did not help. mem=2G was needed because jmicron driver for ATA failed without iomem.
I attach some more files I collected while trying if it has gotten fixed. Now I'm back to running a loaned nVidia card to be able to report this.