Add function to determine best display resolution in auto-resolution.sh

Avoids choosing resolutions greater than HD, as this causes font to be too small.

Implemented a new function, get_best_resolution, to select the optimal resolution for connected outputs based on available modes. The update_resolutions function now utilizes this new logic to set the display resolution accordingly, falling back to auto mode if no suitable resolution is found.

modules/utilities/unix/desktop/kde_minimal/files/auto-resolution.sh

@@ -3,11 +3,82 @@
 # Wait for the desktop environment to fully load
 sleep 15
 
+# Function to get the best resolution for an output
+get_best_resolution() {
+    local output="$1"
+    local preferred_mode=""
+    local best_hd_mode=""
+    local best_width=0
+    local best_height=0
+    
+    # Get available modes for this output
+    local modes=$(xrandr --query | grep -A 1000 "^$output connected" | grep -E "^\s+[0-9]+x[0-9]+" | head -20)
+    
+    while IFS= read -r mode_line; do
+        # Extract resolution from mode line (format: "   1920x1080     60.00*+")
+        if [[ $mode_line =~ ([0-9]+)x([0-9]+) ]]; then
+            local width=${BASH_REMATCH[1]}
+            local height=${BASH_REMATCH[2]}
+            local mode="${width}x${height}"
+            
+            # Check if this is the preferred mode (marked with +)
+            if echo "$mode_line" | grep -q "+"; then
+                preferred_mode="$mode"
+            fi
+            
+            # Check if this resolution is HD or lower (1920x1080 or smaller)
+            if [[ $width -le 1920 && $height -le 1080 ]]; then
+                # Check if this is better than our current best HD mode
+                if [[ $width -gt $best_width || ($width -eq $best_width && $height -gt $best_height) ]]; then
+                    best_width=$width
+                    best_height=$height
+                    best_hd_mode="$mode"
+                fi
+            fi
+        fi
+    done <<< "$modes"
+    
+    # Priority: 1) Preferred mode if HD or lower, 2) Best HD mode, 3) Preferred mode even if higher than HD
+    if [[ -n "$preferred_mode" ]]; then
+        # Check if preferred mode is HD or lower
+        if [[ $preferred_mode =~ ([0-9]+)x([0-9]+) ]]; then
+            local pref_width=${BASH_REMATCH[1]}
+            local pref_height=${BASH_REMATCH[2]}
+            if [[ $pref_width -le 1920 && $pref_height -le 1080 ]]; then
+                echo "$preferred_mode"
+                return
+            fi
+        fi
+    fi
+    
+    # If preferred mode is higher than HD, use best HD mode instead
+    if [[ -n "$best_hd_mode" ]]; then
+        echo "$best_hd_mode"
+        return
+    fi
+    
+    # Fallback to preferred mode even if higher than HD
+    if [[ -n "$preferred_mode" ]]; then
+        echo "$preferred_mode"
+        return
+    fi
+    
+    # Last resort: return empty to trigger auto mode
+    echo ""
+}
+
 # Function to update resolutions
 update_resolutions() {
     for output in $(xrandr | grep " connected" | cut -f1 -d " ")
     do
-        xrandr --output "$output" --auto
+        local best_resolution=$(get_best_resolution "$output")
+        if [[ -n "$best_resolution" ]]; then
+            echo "Setting $output to $best_resolution"
+            xrandr --output "$output" --mode "$best_resolution"
+        else
+            echo "No suitable resolution found for $output, using auto"
+            xrandr --output "$output" --auto
+        fi
     done
 }