Xorg ATI resolution incorrect

[mungewell]

Binary package hint: xserver-xorg-driver-ati

Feisty Live CD (Release Candidate) incorrectly detects my screen as 1024x768, when is can support 1280x1024. This is with the Xorg-ATI driver on Radeon RV100 QY [Radeon 7000/VE]

When run in 'safe mode' the full screen resolution of 1280x1024 is detected with VESA.
Simon

[mungewell (simon-mungewell)]

should have stated this is on Xubuntu Feisty

[mungewell (simon-mungewell)]

Hi-lights of Xorg.0.log

---
(II) RADEON(0): Monitor name: LL-171A-B
(II) RADEON(0): Ranges: V min: 55 V max: 77 Hz, H min: 24 H max: 82 kHz, PixClock max 140 MHz
---

---
(II) RADEON(0): Validating modes on Primary head ---------
(II) RADEON(0): Generic Monitor: Using hsync range of 28.00-51.00 kHz
(II) RADEON(0): Generic Monitor: Using vrefresh range of 43.00-60.00 Hz
---

Simon.

[Bryce Harrington (bryce)]

Thanks, yes others have reported this exact same issue; we're tracking it in bug #49827, and hope to have a better solution for Gutsy.

Meanwhile, to work around it, manually edit /etc/X11/xorg.conf, make sure it lists the correct hsync and vertrefresh rates for your monitor, and specify the desired resolutions on the Mode line.