[Bug 214736] Re: screen dims on boot
similar problem on an ASUS PRO75 though i'm using kdm, the screen brightness slider hs to be "touched" to restore full brightness the screen dims to minimum when I -boot -close the lid -start anysoftware using a graphic surface (mplayer , SDL) its a brand newlaptop, first install : 2.6.28-17-generic , ubuntu jaunty also get this in log : [199833.902898] [drm:gm45_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [199851.543041] [drm:gm45_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [199871.311860] mtrr: no MTRR for d000,1000 found [199873.798158] [drm:i915_setparam] *ERROR* unknown parameter 4 [199950.405132] ACPI: BIOS _OSI(Linux) query ignored pretty sure it's related the xorg.conf is virtually empty havent got a clue where to start... any idea of a quick fix? any idea where it comes from ? (kernel? intel driver? Acpi?) this bug makes the laptop near unusable -- screen dims on boot https://bugs.launchpad.net/bugs/214736 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 214736] Re: screen dims on boot
"acpi_osi=Linux" has no effect for me either. I use Kubuntu 8.04 on a Lenovo 3000 C200 laptop. I did a fresh install of Hardy. I get this dimming on every boot, at exactly the same point - somewhere around when the hardware drives are being loaded. When the desktop is fully loaded the brightness comes back automatically. But the login screen is quite dark. The same thing happens at shutdown, and the reduced brightness then remains at the beginning of the next boot. I can however get the brightness up with the brightness keys, but only if I do it quickly at the very start. But the dimming then occurs again when the harware drivers are being loaded. The brightness buttons on my laptop work at the start of the boot process, but then stop working as soon as the brightness drops. When the brightness automatically comes back (when the desktop is loaded), they start working again. The same dimming also occurs every time I start VLC. It also happens when I switch off "Enable power saving" in KDE Control Center. (Reenebling the power saving however does not resurrect the brightness.) I can always get the brightness back to normal if click on the Power Manager applet, and then change the brightness setting there. The brightness control there is set to maximum, although the actual brightness is very low. Changing the setting to something else (doesn't matter what) gets things back to normal (I usually take it down a notch, and then back up to maximum). I can also - sometimes - get things back to normal if I touch anything in Monitor & Display -> Size, orientation & Positioning (in the Control Center), but that part of the Control Center behaves strangely and unpredictably. Those solutions are of course just temporary. All I need to do to dim the screen, is to start VLC, or reboot. Nothing like this happend in Gutsy, neither in Ubuntu nor in Kubuntu. I haven't seen it on any other version either. It started with one of the beta or RC versions of the Live CD, and it remains in the final release. It's very annoying. -- screen dims on boot https://bugs.launchpad.net/bugs/214736 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 214736] Re: screen dims on boot
Adding acpi_osi=Linux does not solve the issue for me... -- screen dims on boot https://bugs.launchpad.net/bugs/214736 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 214736] Re: screen dims on boot
Can you give me the instructions for doing so. I tried a few things in GRUB, but none of them worked. I'm not sure if I was doing it correctly. -- screen dims on boot https://bugs.launchpad.net/bugs/214736 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 214736] Re: screen dims on boot
adding "acpi_osi=Linux" to grub, in place of disabling the bios, also makes the screen not dim on startup. -- screen dims on boot https://bugs.launchpad.net/bugs/214736 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 214736] Re: screen dims on boot
Disabling ACPI* -- screen dims on boot https://bugs.launchpad.net/bugs/214736 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 214736] Re: screen dims on boot
Disabling acp in GRUB makes this problem fail to occur, I'm going to reassign it. ** Changed in: acpi (Ubuntu) Sourcepackagename: None => acpi -- screen dims on boot https://bugs.launchpad.net/bugs/214736 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 214736] Re: screen dims on boot
Yep, that's my exact problem. It seems like I remembering being able to change the brightness before Gnome was loaded in previous versions, but I'm not sure. Either way, the brightness dims and I'm not able to change it until Gnome is fully loaded. -- screen dims on boot https://bugs.launchpad.net/bugs/214736 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 214736] Re: screen dims on boot
The same happens for me, it started occuring recently, I think two kernel upgrades before 24-16, but I could be wrong. The brightness cannot be adjusted until gnome is loaded (but that is normal right?) and it happens at the same point during boot up every time. It's a bit annoying. ** Changed in: ubuntu Status: New => Confirmed -- screen dims on boot https://bugs.launchpad.net/bugs/214736 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
