Comment 21 for bug 1234429

Hi Tony and others,

I had planned to file an upstream bug but my inspiron (because of this
problem and a problem with the Broadcomm wireless) is very awkward to
test... So I have not - yet anyway - done that.

Regards, Chris Hermansen
On May 9, 2014 9:10 PM, "Anthony Matt" <email address hidden> wrote:

> I have display problems with a Dell Vostro 1000 (2.4.1 BIOS, similar
> hardware to Inspiron 1501) on Lubuntu 14.04. Vertical lines on boot,
> whether with LiveCD (USB stick) or installed on hard drive. No
> herringbones or purple screens.
> Observations:
> 1. Nomodeset works (albeit stuck in 1024 x 768) because it causes driver
> 'radeon' to unload, and X falls back to the vesa driver (per Xorg.0.log).
> 2. External VGA monitor (ViewSonic VA912b) always works in cloned display
> mode, but when attached does not appear to change the laptop screen
> behavior.
> 3. Return after 'Switch off display' or 'Put display to sleep' (in Xfce
> Power Manager) sometimes restores display, other times results in blank
> laptop screen (no image, no lines) or vertical lines; display that is set
> to lower resolution shows only part of desktop (crops rather than shrinks
> to fit entire desktop).
> 4. Laptop lid behavior: Lock Screen option does not fix vertical lines,
> does not break normal screen; Suspend sometimes fixes vertical lines.
> 5. Changing LVDS monitor resolution or refresh rate (in Monitor Settings
> GUI) always causes LVDS to display vertical lines. Turning LVDS off, then
> on sometimes restores screen from vertical line state.
> 6. Behaviors in 3-5 appear to be time/temperature dependent - restoring
> the screen works consistently for ~1 hour (from first boot of the day),
> then works less frequently until not at all.
> 7. Errors (probably unrelated) on screen displayed when returning from
> Suspend: ata1: softreset failed (device not ready)
> 8. No monitors.xml in ~/.config; no xorg.conf.
> 9. xrandr reports various LVDS resolutions from 640 x 480 up to 1280 x 800.
> Was an upstream bug ever filed for this issue?
> I'm willing to supply logs etc to help resolve this bug.
> Thanks,
> Tony
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> report.
> Title:
> 1002:5975 [Dell Inspiron 1501] vertical coloured lines / herringbone
> pattern on startup
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