Messages in this thread | | | Date | Wed, 11 May 2011 18:59:56 +0200 | Subject | Re: [PATCH] gma500: Add option to disable LVDS | From | Patrik Jakobsson <> |
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On Wed, May 11, 2011 at 2:41 PM, Patrik Jakobsson <patrik.r.jakobsson@gmail.com> wrote: > On Wed, May 11, 2011 at 10:10:22AM +0100, Alan Cox wrote: >> > pipes and LVDS only finds a bogus mode of 0x0 pixels. Not sure why >> > LVDS takes over instead of SDVO since it has valid modes, but my >> > screen just goes into powersave when no proper PLL can be set for the >> > bogus mode. >> >> Well that is hopeful. If we get a bogus 0x0 pixel mode it means it did >> detect something invalid but for some reason we didn't punt on it. >> >> Alan
> Here's the dmesg with drm_debug=7, LVDS is also enabled here.
> [ 165.383050] [drm:parse_lfp_panel_data], Found panel mode in BIOS VBT tables: > [ 165.383060] [drm:drm_mode_debug_printmodeline], Modeline 0:"0x0" 0 0 0 0 0 0 0 0 0 0 0x8 0x0
The mode comes from the video bios table. When skipping the bios probe I get a working framebuffer but the backlight code crashes so this needs to be handled.
I'll send a patch that throws away that mode and skips backlight if there is no lvds ouput.
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