[r300g] screen is garbled with drivers ati/modesetting + gallium (PCIe, Big Endian ppc64, mesa-19.3.0)
X does work properly with driver "fbdev" but the screen is garbled with driver "ati" or "modesetting" (see attached screenshots). Also colours are wrong widh driver "modesetting".
Machine is a PowerMac G5 + ATI Radeon X1600 Pro.
System: Kernel: 5.4.3-gentoo-PowerMacG5 ppc64 bits: 64 Console: tty 1 Distro: Gentoo Base System release 2.6 Machine: Type: PowerPC Device System: PowerMac11 2 details: PowerMac11 2 rev: 1.1 (pvr 0044 0101) serial: R6V CPU: Dual Core: PPC970MP altivec supported type: MCP speed: 1150 MHz min/max: 1150/2300 MHz Graphics: Device-1: NVIDIA NV43 [GeForce 6600] driver: N/A Device-2: AMD RV530 [Radeon X1600 PRO] driver: radeon v: kernel Display: server: X.org 1.20.5 driver: modesetting tty: 104x53
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