Hi! Thought I'd send this to the mailing list before submitting to the freedesktop.org bugzilla.
Diagnostics files can be found at http://kylie.dyndns.org/~martin/blurry/ Any thoughts? Workarounds? Should I buy some other hardware instead? Should I submit a bug report already? Cheers, Martin Product=DRI. Component=DRM/Intel. Summary: [G35 KMS] regression confuses monitor to think resolution is 1920x1198 -- chipset: G35 -- system architecture: i686 -- kernel version: 2.6.32-5-686 vs 2.6.39-2-686-pae -- Linux distribution: Debian GNU/Linux Wheezy ("testing") -- Mobo model: ASUS P5E-V HDMI using onboard graphics -- Display connector: HDMI-converted-to-DVI Reproduce steps: Boot up. Wait for kernel mode setting to do its stuff. Always occurs. -- intel_reg_dumper output A tool by that name is not created when I build http://xorg.freedesktop.org/archive/individual/app/intel-gpu-tools-1.0.tar.bz2, maybe the bug submitting guidelines needs to be updated? Output from intel_gpu_dump (from Debian package intel-gpu-tools_1.0.2-1) are available. Problem description: I'm running Debian testing ("wheezy") and few weeks^H^H^H^H^Hmonths ago the Linux kernel was updated from 2.6.32 to 2.6.38 (and then 2.6.39). With this a regression occured causing some blurryness in two horizontal bands on my brand new EIZO FLEXSCAN S2433WFS monitor. Under 2.6.39 the monitor OSD info says the resolution is 1920x1198, not 1920x1200 as it does with 2.6.32. The computer says the resolution is 1920x1200 under all kernel versions. I'm using the Intel graphics (driver i915) on the motherboard (ASUS P5E-V HDMI), and on its HDMI output there's a thingamajig converting HDMI to DVI (supplied with the motherboard), and from there a DVI-cable to the monitor. (Pretty sure it's DVI-D.) The motherboard also has an unused VGA-port. The blurriness is noticeable even before X starts, as soon as the kernel's KMS kicks in. If I disable KMS (modeset=0 in /etc/modprobe.d/i915-kms.conf) X doesn't start, which is not surprising considering that all over the internet it says KMS is required for X with Intel graphics. X configures itself automatically, there's no config file. (Probably not relevant considering the blurriness is noticeable before X starts.) I have done various diagnostics and nothing obvious stands out that I can see. The only things of note are: 1. xrandr calls the output "DVI1" under 2.6.32 and "HDMI1" under 2.6.39. 2. xrandr says "HDMI1 clones VGA1" under 2.6.38, nothing like that under 2.6.32. 3. xrandr mentions "force_audio: 0" under 2.6.38, not under 2.6.32. Trying to alter this makes not difference. 4. "fbset --show" says "accel true" under 2.6.38 but not under 2.6.32. Turning accel off make no difference. _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
