| Summary: | [Patch] VIASave and VIARestore Functions Complete Rewrite | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Kevin Brace <kevinbrace> | ||||||
| Component: | Driver/openchrome | Assignee: | Openchrome development list <openchrome-devel> | ||||||
| Status: | RESOLVED FIXED | QA Contact: | |||||||
| Severity: | enhancement | ||||||||
| Priority: | medium | CC: | kevinbrace | ||||||
| Version: | unspecified | ||||||||
| Hardware: | x86 (IA32) | ||||||||
| OS: | Linux (All) | ||||||||
| Whiteboard: | |||||||||
| i915 platform: | i915 features: | ||||||||
| Attachments: |
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Created attachment 120322 [details] [review] This patch completely rewrites VIASave and VIARestore functions Completely rewrites VIASave and VIARestore functions inside via_vgahw.c. It now saves and restores virtually all VIA Technologies defined extended VGA registers. The previous code did not save all extended VGA registers, so many registers were not being restored at all. That being said, Chrome 9 HD HDMI or DisplayPort registers are not being saved or restored since they cannot be accessed via VGA I/O ports. The compiled device driver was tested on the following computer. - Epic 1314 laptop (MSI VR321 laptop equivalent, VN896 chipset) with Lubuntu 12.04 i386 Fixed by commit 0d3c0deb72f5cce55be18bdf89e389eb4df71e13. https://cgit.freedesktop.org/openchrome/xf86-video-openchrome/commit/?id=0d3c0deb72f5cce55be18bdf89e389eb4df71e13 |
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Created attachment 119669 [details] This patch completely rewrites VIASave and VIARestore functions. Completely rewrites VIASave and VIARestore functions inside via_vgahw.c. It now saves and restores virtually all VIA Technologies defined extended VGA registers. The previous code did not save all extended VGA registers, so many registers were not being restored at all. That being said, Chrome 9 HD HDMI or DisplayPort registers are not being saved or restored in this patch. The compiled device driver was tested on the following computer. - Epic 1314 laptop (MSI VR321 laptop equivalent, VN896 chipset) with Lubuntu 12.04 i386