Changes between Version 2 and Version 3 of Ticket #14353, comment 5


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Timestamp:
Aug 14, 2018, 3:12:41 PM (6 years ago)
Author:
cocobean

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  • Ticket #14353, comment 5

    v2 v3  
    1 @Pulkomandy - Ok, I finally blamed my newer monitor in the end. The monitor in question is a HDTV/TV monitor versus my original "non TV" 1080p monitor (my original Y2010 test monitor which worked fine at 1920x1080 screen resolution w/radeon_hd driver). I'm checking on a firmware fix/upgrade for the monitor. This monitor does display the 1920x1080 resolution but something the radeon_hd driver does triggers this monitor (and the Radeon HD 4350) to stop displaying the screen and never shows it again after the splash screen disappears. I do the exact same test with the VESA driver and everything works fine everytime. Go figure. With the radeon_hd driver, I tried various lower screen resolutions from the boot debug menu but all ended with the same issue. I'll blame the monitor for this round, but suspect the radeon_hd driver.
     1@Pulkomandy - Both the intel_extreme and the radeon_hd driver trigger my HDTV monitor to stop displaying the screen and never shows it again after the Haiku splash screen disappears. The exact same test with the VESA driver works fine everytime. Go figure. With bothe the intel_extreme and the radeon_hd driver, I tried various lower screen resolutions from the boot debug menu but all ended with the same issue.
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    3 NOTE: The intel_extreme driver has the same issue on my standard 1600x1200 monitor. It'll generate a black screen right after the Haiku splash screen. Using VESA driver, it'll work fine. I can even display both 1600x1200 and 1920x1440 screen resolution with the VESA driver using my Intel IGP (PCI ID: 8086:0042) using screen preferences.
     3I saw a message for 'init_accelerant' and 'cloned area' which seems the way these drivers must use and manage data between VBIOS/VRAM and the kernel.
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     5NOTE: I can even display both 1600x1200 and 1920x1440 screen resolution with the VESA driver using my Intel IGP (PCI ID: 8086:0042) using screen preferences.