I had a very similar problem as TJ: sluggish cursor, block left behind,
window sizing incorrect. However, I didn't have 800x600 like TJ, but
1024x768, but the window ran off the screen at the bottom and the top
banner was corrupt in Firefox (could see maximize and close icons)
The good news is that TJ's solution worked for me too. I used the
command, sudo displayconfig-gtk, and selected "LCD Panel 1024x768". You
have to log off and back in again for it to take affect. That solved the
sluggishness, the block trash, and the size imperfections.
My monitor is a ViewSonic VG150, and my display hardware info (using lshw) is:
*-display
description: VGA compatible controller
product: 82810E DC-133 (CGC) Chipset Graphics Controller
vendor: Intel Corporation
physical id: 1
bus info: [EMAIL PROTECTED]:00:01.0
version: 03
width: 32 bits
clock: 66MHz
capabilities: pm vga_controller bus_master cap_list
configuration: driver=i810_smbus latency=0 module=i2c_i810
The funny thing is that if I select the ViewSonic VG150 option specifically in
the Screen and Graphics Preferences, the screen is fine after logging in, but
the screen is off-center and running off the bottom before logging in. (You
can't see the options at the bottom of the screen and the username and password
fields are displace down and to the right.) So I went back to the Generic "LCD
Panel 1024x768", which works great.
Thanks TJ for posting your solution.
--
Hardy regression: video incorrect size; cursor paints blocks [i815]
https://bugs.launchpad.net/bugs/198521
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