| Bug ID | 108514 |
|---|---|
| Summary | heavy screen flickering with Mobility Radeon X1600 and kernel version onwards 3.13 |
| Product | DRI |
| Version | unspecified |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/Radeon |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | werner.lueckel@googlemail.com |
my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) screen resolution: 1680x1050@60.1 when booting UBUNTU "14.04.5 LTS, Trusty Tahr" kernel 3.13.0-160-generic -> the screen is fine in text-mode and in grafic-mode; NO flickering. boot-messages say: [drm] Initialized radeon 2.36.0 ... BUT, when booting UBUNTU "18.04.1 LTS (Bionic Beaver)" kernel 4.15.0-36-generic -> the screen starts heavy flickering as soon as the kernel-module "radeon.ko" is loaded. The flickering continues in grafic-mode. here the boot-messages say: [drm] Initialized radeon 2.50.0 ... so: this seems to be a new version of radeon.ko. My question: - is there a method or a 'hidden flag' to switch radeon.ko-2.50 back to the good behaviour of radeon.ko-2.16?
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